{"id":10294,"date":"2026-09-29T18:26:06","date_gmt":"2026-09-29T09:26:06","guid":{"rendered":"https:\/\/venu-sys.co.jp\/jo-sys\/?p=10294"},"modified":"2026-09-29T18:26:06","modified_gmt":"2026-09-29T09:26:06","slug":"business-mail-sagi","status":"publish","type":"post","link":"https:\/\/venu-sys.co.jp\/jo-sys\/10294\/","title":{"rendered":"\u3010IPA\u30fbJPCERT\/CC\u30c7\u30fc\u30bf\u3011\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\uff08BEC\uff09\u3068\u306f\uff5c2019\u5e74\u8abf\u67fb\u3067\u624b\u53e3\u306e\u7d0475%\u304c\u8acb\u6c42\u66f8\u507d\u88c5\u3001\u88ab\u5bb3\u5b9f\u614b\u3068\u5bfe\u7b56"},"content":{"rendered":"<p>\u7d4c\u7406\u62c5\u5f53\u304b\u3089\u300c\u53d6\u5f15\u5148\u304b\u3089\u632f\u8fbc\u5148\u3092\u5909\u3048\u305f\u3044\u3068\u30e1\u30fc\u30eb\u304c\u6765\u307e\u3057\u305f\u300d\u3068\u76f8\u8ac7\u3055\u308c\u305f\u3089\u3001\u3059\u3050\u306b\u5224\u65ad\u3067\u304d\u307e\u3059\u304b\u3002\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306b\u3064\u3044\u3066\u3001\u60c5\u30b7\u30b9\u62c5\u5f53\u8005\u304b\u3089\u306f\u3053\u3093\u306a\u58f0\u3092\u3088\u304f\u805e\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u632f\u8fbc\u5148\u5909\u66f4\u306e\u9023\u7d61\u304c\u672c\u7269\u304b\u3069\u3046\u304b\u3001\u3069\u3046\u898b\u5206\u3051\u308c\u3070\u3044\u3044\u306e\u304b\u5206\u304b\u3089\u306a\u3044<\/li>\n<li>\u3046\u3061\u306f\u4e2d\u5c0f\u4f01\u696d\u3060\u304b\u3089\u3001\u72d9\u308f\u308c\u306a\u3044\u306e\u3067\u306f\u306a\u3044\u304b<\/li>\n<li>\u5927\u4f01\u696d\u304c\u6570\u5341\u5104\u5186\u3092\u3060\u307e\u3057\u53d6\u3089\u308c\u305f\u4e8b\u4ef6\u3068\u3044\u3046\u5370\u8c61\u3057\u304b\u306a\u3044<\/li>\n<\/ul>\n<p>\u5148\u306b\u7d50\u8ad6\u3092\u304a\u4f1d\u3048\u3057\u307e\u3059\u3002\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306e\u624b\u53e3\u306e\u4e2d\u5fc3\u306f\u3001\u53d6\u5f15\u5148\u3092\u88c5\u3063\u305f\u8acb\u6c42\u66f8\u306e\u507d\u88c5\u3067\u3059\u3002\u88ab\u5bb3\u984d\u306f\u5343\u4e07\u5186\u53f0\u306e\u4e8b\u4f8b\u304b\u3089\u6570\u5341\u5104\u5186\u306e\u5831\u9053\u4e8b\u4f8b\u307e\u3067\u5e45\u304c\u3042\u308a\u3001\u5831\u9053\u3055\u308c\u308b\u5927\u578b\u4e8b\u4ef6\u3060\u3051\u304c\u5178\u578b\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\u5bfe\u7b56\u306e\u51fa\u767a\u70b9\u306f\u6280\u8853\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<strong>\u632f\u8fbc\u5148\u306e\u5909\u66f4\u3092\u30e1\u30fc\u30eb\u4ee5\u5916\u306e\u624b\u6bb5\u3067\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3092\u3001\u793e\u5185\u306e\u30eb\u30fc\u30eb\u306b\u3059\u308b\u3053\u3068<\/strong>\u3067\u3059\u3002<\/p>\n<div style=\"border:2px solid #2d4f8f;border-radius:8px;background:#f2f5fb;padding:14px 18px;margin:1.5em 0\">\n<p style=\"margin:0 0 8px;font-weight:700;color:#2d4f8f\">\u3053\u306e\u8a18\u4e8b\u306e\u30dd\u30a4\u30f3\u30c8<\/p>\n<ul style=\"margin:0;padding-left:20px\">\n<li>JPCERT\/CC\u306e2019\u5e74\u8abf\u67fb\u3067\u306f\u3001BEC\u4e8b\u6848\u306e\u7d0475%\u304c\u8acb\u6c42\u66f8\u306e\u507d\u88c5\u3067\u3057\u305f\uff08\u51fa\u5178: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.jpcert.or.jp\/research\/20200325_BEC-survey.pdf\">JPCERT\/CC\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306e\u5b9f\u614b\u8abf\u67fb\u5831\u544a\u66f8\u300d<\/a>\uff09\u3002<\/li>\n<li>\u540c\u3058\u8abf\u67fb\u3067\u8a50\u79f0\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u30925\u3064\u306b\u5206\u3051\u305f\u96c6\u8a08\uff08\u8a08106\u4ef6\uff09\u3067\u306f\u3001\u7d046\u5272\u304c\u8acb\u6c42\u66f8\u767a\u884c\u6642\u3068\u632f\u8fbc\u524d\u3067\u3057\u305f\uff08\u8a08\u7b97\u5024\u3002\u51fa\u5178: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.jpcert.or.jp\/research\/20200325_BEC-survey.pdf\">JPCERT\/CC\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306e\u5b9f\u614b\u8abf\u67fb\u5831\u544a\u66f8\u300d<\/a>\uff09\u3002<\/li>\n<li>IPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01 2026\u300d\u7d44\u7e54\u7de8\u3067\u306f10\u4f4d\u3067\u3059\u30022018\u5e74\u306e\u521d\u9078\u51fa\u304b\u30899\u5e74\u9023\u7d9a\u306e\u9078\u51fa\u3067\u3059\uff08\u51fa\u5178: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/security\/10threats\/omgdg50000008fi8-att\/kaisetsu_2026_soshiki.pdf\">IPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01 2026\u300d\u89e3\u8aac\u66f8\uff3b\u7d44\u7e54\u7de8\uff3d<\/a>\uff09\u3002<\/li>\n<\/ul>\n<\/div>\n<hr \/>\n<h2>\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\uff08BEC\uff09\u306f\u53d6\u5f15\u5148\u3084\u7d4c\u55b6\u8005\u306b\u306a\u308a\u3059\u307e\u3057\u3066\u9001\u91d1\u3055\u305b\u308b\u8a50\u6b3a<\/h2>\n<p><img decoding=\"async\" alt=\"BEC\u3068\u306f\u4f55\u304b\" src=\"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2026\/09\/h2-1-41.png\" \/><\/p>\n<p>\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u3068\u306f\u3001<strong>\u53d6\u5f15\u5148\u3084\u81ea\u793e\u306e\u7d4c\u55b6\u8005\u306a\u3069\u3092\u88c5\u3063\u305f\u507d\u306e\u30e1\u30fc\u30eb\u3067\u3001\u653b\u6483\u8005\u306e\u53e3\u5ea7\u306b\u304a\u91d1\u3092\u632f\u308a\u8fbc\u307e\u305b\u308b\u8a50\u6b3a<\/strong>\u3067\u3059\u3002\u82f1\u8a9e\u3067\u306fBusiness E-mail Compromise\u3068\u547c\u3070\u308c\u3001BEC\u3068\u7565\u3055\u308c\u307e\u3059\u3002IPA\u3084JPCERT\/CC\u3082\u3001\u9001\u91d1\u3092\u3060\u307e\u3057\u53d6\u308b\u3053\u3068\u3092\u76ee\u7684\u3068\u3057\u305f\u653b\u6483\u3068\u3057\u3066\u4f4d\u7f6e\u3065\u3051\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>BEC\u306f\u3001IPA\u304c\u6bce\u5e74\u516c\u8868\u3057\u3066\u3044\u308b<a href=\"https:\/\/venu-sys.co.jp\/jo-sys\/9664\/\">\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01<\/a>\u306e\u7d44\u7e54\u7de8\u306b\u3082\u5165\u3063\u3066\u3044\u307e\u3059\u30022026\u5e74\u7248\u3067\u306f10\u4f4d\u3067\u30012018\u5e74\u306b\u521d\u3081\u3066\u9078\u3070\u308c\u3066\u304b\u30899\u5e74\u9023\u7d9a\u306e\u9078\u51fa\u3067\u3059\u3002\u4e00\u6642\u7684\u306a\u6d41\u884c\u3067\u306f\u306a\u304f\u3001\u6bce\u5e74\u8b66\u6212\u304c\u5fc5\u8981\u306a\u8105\u5a01\u3068\u3057\u3066\u6271\u308f\u308c\u3066\u3044\u308b\u308f\u3051\u3067\u3059\u3002<\/p>\n<p>\u4f3c\u305f\u8a00\u8449\u306b\u3001\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0\u3084\u6a19\u7684\u578b\u30e1\u30fc\u30eb\u304c\u3042\u308a\u307e\u3059\u3002\u9055\u3044\u306f\u300c\u4f55\u3092\u72d9\u3063\u3066\u3044\u308b\u304b\u300d\u3067\u3001\u6b21\u306e\u3088\u3046\u306b\u6574\u7406\u3067\u304d\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u7a2e\u985e<\/th>\n<th>\u4e3b\u306a\u76ee\u7684<\/th>\n<th>\u5178\u578b\u7684\u306a\u624b\u53e3<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\uff08BEC\uff09<\/td>\n<td>\u4f01\u696d\u306b\u304a\u91d1\u3092\u9001\u91d1\u3055\u305b\u308b<\/td>\n<td>\u53d6\u5f15\u5148\u3084\u7d4c\u55b6\u8005\u3092\u88c5\u3044\u3001\u632f\u8fbc\u5148\u306e\u5909\u66f4\u3084\u6025\u304e\u306e\u9001\u91d1\u3092\u4f9d\u983c\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u30d5\u30a3\u30c3\u30b7\u30f3\u30b0<\/td>\n<td>ID\u3084\u30d1\u30b9\u30ef\u30fc\u30c9\u306a\u3069\u306e\u8a8d\u8a3c\u60c5\u5831\u3084\u500b\u4eba\u60c5\u5831\u3092\u3060\u307e\u3057\u53d6\u308b<\/td>\n<td>\u507d\u30b5\u30a4\u30c8\u306b\u8a98\u5c0e\u3057\u3001ID\u3084\u30d1\u30b9\u30ef\u30fc\u30c9\u3001\u30ab\u30fc\u30c9\u756a\u53f7\u3092\u5165\u529b\u3055\u305b\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u6a19\u7684\u578b\u30e1\u30fc\u30eb<\/td>\n<td>\u60c5\u5831\u306e\u7a83\u53d6\u3084\u30de\u30eb\u30a6\u30a7\u30a2\u611f\u67d3<\/td>\n<td>\u696d\u52d9\u306b\u95a2\u4fc2\u3059\u308b\u5185\u5bb9\u3092\u88c5\u3044\u3001\u6dfb\u4ed8\u30d5\u30a1\u30a4\u30eb\u3084\u30ea\u30f3\u30af\u3092\u958b\u304b\u305b\u308b<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u306a\u304a\u3001\u604b\u611b\u611f\u60c5\u3092\u5229\u7528\u3059\u308b\u30ed\u30de\u30f3\u30b9\u8a50\u6b3a\u3082\u3001BEC\u3068\u306f\u5225\u306e\u3082\u306e\u3068\u3057\u3066\u533a\u5225\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>BEC\u306e\u653b\u6483\u8005\u306f\u3001\u3044\u304d\u306a\u308a\u507d\u30e1\u30fc\u30eb\u3092\u9001\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u624b\u53e3\u306b\u3088\u3063\u3066\u306f\u3001\u4e8b\u524d\u306b\u30de\u30eb\u30a6\u30a7\u30a2\u3084\u4e0d\u6b63\u30ed\u30b0\u30a4\u30f3\u3067\u30e1\u30fc\u30eb\u3092\u76d7\u307f\u898b\u3066\u3001\u53d6\u5f15\u306e\u5185\u5bb9\u3084\u62c5\u5f53\u8005\u3092\u628a\u63e1\u3057\u307e\u3059\u3002\u305d\u306e\u3046\u3048\u3067\u3001<strong>\u672c\u7269\u306e\u3084\u308a\u53d6\u308a\u306e\u6d41\u308c\u306b\u7d1b\u308c\u8fbc\u307e\u305b\u3066\u507d\u306e\u4f9d\u983c\u3092\u9001\u3063\u3066\u304d\u307e\u3059<\/strong>\u3002<\/p>\n<div style=\"border:2px solid #eb6834;border-radius:8px;background:#fdf3ee;padding:14px 18px;margin:1.5em 0\">\n<p style=\"margin:0 0 8px;font-weight:700;color:#c2521f\">\u6ce8\u610f<\/p>\n<p style=\"margin:0\">BEC\u306e\u30e1\u30fc\u30eb\u306f\u3001\u672c\u7269\u306e\u53d6\u5f15\u306e\u6d41\u308c\u3084\u62c5\u5f53\u8005\u540d\u3092\u8e0f\u307e\u3048\u3066\u4f5c\u3089\u308c\u307e\u3059\u3002\u6587\u9762\u304c\u81ea\u7136\u3067\u3001\u904e\u53bb\u306e\u3084\u308a\u53d6\u308a\u3068\u8a71\u304c\u3064\u306a\u304c\u3063\u3066\u3044\u3066\u3082\u3001\u305d\u308c\u3060\u3051\u3067\u672c\u7269\u3068\u5224\u65ad\u3057\u306a\u3044\u3088\u3046\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n<p style=\"font-size:13px;color:#777;margin:1em 0 0\">\u51fa\u5178: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/security\/10threats\/omgdg50000008fi8-att\/kaisetsu_2026_soshiki.pdf\">IPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01 2026\u300d\u89e3\u8aac\u66f8\uff3b\u7d44\u7e54\u7de8\uff3d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.jpcert.or.jp\/research\/20200325_BEC-survey.pdf\">JPCERT\/CC\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306e\u5b9f\u614b\u8abf\u67fb\u5831\u544a\u66f8\u300d<\/a><\/p>\n<hr \/>\n<h2>BEC\u306e\u624b\u53e3\u306f5\u985e\u578b\u306b\u5206\u304b\u308c\u30012019\u5e74\u8abf\u67fb\u3067\u306f\u8acb\u6c42\u66f8\u306e\u507d\u88c5\u304c\u7d0475%\u3092\u5360\u3081\u308b<\/h2>\n<p><img decoding=\"async\" alt=\"\u624b\u53e3\u306e5\u985e\u578b\" src=\"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2026\/09\/h2-2-39.png\" \/><\/p>\n<p>BEC\u306e\u624b\u53e3\u306f\u3001\u7c73\u56fdIC3\u3084\u30c8\u30ec\u30f3\u30c9\u30de\u30a4\u30af\u30ed\u793e\u306e\u5206\u985e\u3092\u3082\u3068\u306b\u3001IPA\u306e\u6ce8\u610f\u559a\u8d77\u8cc7\u6599\u30675\u3064\u306e\u985e\u578b\u306b\u6574\u7406\u3055\u308c\u3066\u3044\u307e\u3059\u3002JPCERT\/CC\u306e\u5831\u544a\u66f8\u3082\u3001\u3053\u306e\u5206\u985e\u3092\u5f15\u7528\u3057\u3066\u4e8b\u6848\u3092\u96c6\u8a08\u3057\u3066\u3044\u307e\u3059\u3002<strong>\u81ea\u793e\u306e\u696d\u52d9\u306e\u3069\u3053\u304c\u72d9\u308f\u308c\u308b\u304b\u3092\u8003\u3048\u308b\u306b\u306f\u3001\u307e\u305a\u3053\u306e\u5206\u985e\u3092\u62bc\u3055\u3048\u3066\u304a\u304f\u3068\u4fbf\u5229\u3067\u3059<\/strong>\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u985e\u578b<\/th>\n<th>\u5185\u5bb9<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1. \u53d6\u5f15\u5148\u3068\u306e\u8acb\u6c42\u66f8\u306e\u507d\u88c5<\/td>\n<td>\u53d6\u5f15\u5148\u3092\u88c5\u3044\u3001\u507d\u306e\u8acb\u6c42\u66f8\u3084\u632f\u8fbc\u5148\u306e\u5909\u66f4\u3092\u9001\u3063\u3066\u304f\u308b<\/td>\n<\/tr>\n<tr>\n<td>2. \u7d4c\u55b6\u8005\u7b49\u3078\u306e\u306a\u308a\u3059\u307e\u3057<\/td>\n<td>\u793e\u9577\u3084\u5f79\u54e1\u3092\u88c5\u3044\u3001\u62c5\u5f53\u8005\u306b\u6025\u304e\u306e\u9001\u91d1\u3092\u6307\u793a\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>3. \u7a83\u53d6\u30e1\u30fc\u30eb\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u60aa\u7528<\/td>\n<td><a href=\"https:\/\/venu-sys.co.jp\/jo-sys\/10060\/\">\u30e1\u30fc\u30eb\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u4e57\u3063\u53d6\u308a\uff08\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\uff09<\/a>\u3067\u5f97\u305f\u672c\u7269\u306e\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u3001\u53d6\u5f15\u5148\u306b\u507d\u306e\u8acb\u6c42\u3092\u9001\u308b<\/td>\n<\/tr>\n<tr>\n<td>4. \u793e\u5916\u306e\u6a29\u5a01\u3042\u308b\u7b2c\u4e09\u8005\u3078\u306e\u306a\u308a\u3059\u307e\u3057<\/td>\n<td>\u5f01\u8b77\u58eb\u306a\u3069\u3092\u88c5\u3044\u3001\u79d8\u5bc6\u306e\u6848\u4ef6\u3092\u7406\u7531\u306b\u9001\u91d1\u3092\u6c42\u3081\u308b<\/td>\n<\/tr>\n<tr>\n<td>5. \u8a50\u6b3a\u306e\u6e96\u5099\u884c\u70ba\u3068\u601d\u308f\u308c\u308b\u60c5\u5831\u306e\u8a50\u53d6<\/td>\n<td>\u7d4c\u55b6\u8005\u3084\u4eba\u4e8b\u62c5\u5f53\u8005\u3092\u88c5\u3044\u3001\u5f93\u696d\u54e1\u306e\u60c5\u5831\u306a\u3069\u3092\u805e\u304d\u51fa\u3059<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u985e\u578b3\u306f\u3001\u9001\u4fe1\u5143\u306e\u30a2\u30c9\u30ec\u30b9\u304c\u672c\u7269\u306a\u306e\u3067\u898b\u629c\u304f\u306e\u304c\u7279\u306b\u96e3\u3057\u3044\u624b\u53e3\u3067\u3059\u3002\u3053\u3053\u304b\u3089\u5148\u306f\u3001\u5404\u985e\u578b\u304c\u3069\u306e\u304f\u3089\u3044\u306e\u5272\u5408\u3067\u8d77\u304d\u3066\u3044\u305f\u304b\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h3>2019\u5e74\u8abf\u67fb\u306e117\u4ef6\u306e\u3046\u3061\u7d0475%\u304c\u53d6\u5f15\u5148\u3068\u306e\u8acb\u6c42\u66f8\u306e\u507d\u88c5<\/h3>\n<p>JPCERT\/CC\u306f2019\u5e74\u306b\u3001\u5354\u529b\u7d44\u7e5412\u793e\u3078\u306e\u30a2\u30f3\u30b1\u30fc\u30c8\u3067BEC\u4e8b\u6848117\u4ef6\u3092\u96c6\u3081\u307e\u3057\u305f\u3002\u672a\u9042\u3082\u542b\u3080\u4ef6\u6570\u3067\u3001\u3053\u306e\u8a18\u4e8b\u306eJPCERT\/CC\u306e\u6570\u5024\u306f\u3059\u3079\u3066\u3053\u306e\u8abf\u67fb\u306b\u57fa\u3065\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u8abf\u67fb\u3067\u306f\u3001<strong>117\u4ef6\u306e\u7d0475%\u304c\u300c\u53d6\u5f15\u5148\u3068\u306e\u8acb\u6c42\u66f8\u306e\u507d\u88c5\u300d<\/strong>\u3067\u3057\u305f\u3002<mark>BEC\u306e4\u4ef6\u306b3\u4ef6\u306f\u3001\u53d6\u5f15\u5148\u3092\u88c5\u3063\u305f\u8acb\u6c42\u66f8\u3084\u632f\u8fbc\u5148\u5909\u66f4\u306e\u9023\u7d61<\/mark>\u3060\u3063\u305f\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u6b21\u306b\u591a\u304b\u3063\u305f\u306e\u306f\u7d4c\u55b6\u8005\u7b49\u3078\u306e\u306a\u308a\u3059\u307e\u3057\u3067\u3001CEO\u3084CFO\u3092\u88c5\u3046\u4f8b\u304c\u76ee\u7acb\u3061\u307e\u3057\u305f\u3002\u4e00\u65b9\u3067\u3001\u5f01\u8b77\u58eb\u306a\u3069\u306e\u6a29\u5a01\u3042\u308b\u7b2c\u4e09\u8005\u3092\u88c5\u3046\u985e\u578b\u306f\u3001\u3053\u306e\u8abf\u67fb\u3067\u306f\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001BEC\u5bfe\u7b56\u3067\u6700\u521d\u306b\u5b88\u308b\u3079\u304d\u306a\u306e\u306f\u3001\u53d6\u5f15\u5148\u304b\u3089\u306e\u8acb\u6c42\u3068\u652f\u6255\u306e\u696d\u52d9\u3067\u3059\u3002\u7d4c\u55b6\u8005\u3092\u88c5\u3046\u4f9d\u983c\u3078\u306e\u5099\u3048\u306f\u3001\u305d\u306e\u6b21\u306b\u8003\u3048\u308b\u3068\u3088\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<h3>\u8a50\u79f0\u306f\u8acb\u6c42\u66f8\u767a\u884c\u6642\u3068\u632f\u8fbc\u524d\u306e2\u6bb5\u968e\u306b\u7d046\u5272\u304c\u96c6\u4e2d\u3057\u3066\u3044\u308b<\/h3>\n<p>JPCERT\/CC\u306e2019\u5e74\u8abf\u67fb\u3067\u306f\u3001\u653b\u6483\u8005\u304c\u3069\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u3067\u53d6\u5f15\u5148\u306a\u3069\u3092\u88c5\u3063\u305f\u304b\u3082\u96c6\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u4ef6\u6570\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u8a50\u79f0\u306e\u30bf\u30a4\u30df\u30f3\u30b0<\/th>\n<th>\u4ef6\u6570<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u8acb\u6c42\u66f8\u767a\u884c\u524d<\/td>\n<td>13\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>\u8acb\u6c42\u66f8\u767a\u884c\u6642<\/td>\n<td>33\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>\u632f\u8fbc\u524d<\/td>\n<td>29\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>\u632f\u8fbc\u5f8c<\/td>\n<td>3\u4ef6<\/td>\n<\/tr>\n<tr>\n<td>\u305d\u306e\u4ed6<\/td>\n<td>28\u4ef6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-size:13px;color:#777;margin:.5em 0 1em\">\u51fa\u5178: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.jpcert.or.jp\/research\/20200325_BEC-survey.pdf\">JPCERT\/CC\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306e\u5b9f\u614b\u8abf\u67fb\u5831\u544a\u66f8\u300d<\/a>\uff082019\u5e74\u8abf\u67fb\u3001\u88685\u300c\u8a50\u79f0\u306e\u30bf\u30a4\u30df\u30f3\u30b0\u300d\uff09<\/p>\n<p><img decoding=\"async\" alt=\"\u8a50\u79f0\u30bf\u30a4\u30df\u30f3\u30b0\u5225\u306e\u4ef6\u6570\uff082019\u5e74\u8abf\u67fb\uff09\" src=\"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2026\/09\/fig1-timing.png\" \/><\/p>\n<p>\u6700\u3082\u591a\u3044\u306e\u306f\u8acb\u6c42\u66f8\u767a\u884c\u6642\u3067\u3001\u632f\u8fbc\u524d\u304c\u305d\u308c\u306b\u7d9a\u304d\u307e\u3059\u30025\u533a\u5206\u306e\u5408\u8a08\u306f106\u4ef6\u3067\u3001\u7dcf\u4e8b\u6848\u6570\u306e117\u4ef6\u3068\u306f\u4e00\u81f4\u3057\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u5206\u5e03\u304b\u3089\u8aad\u307f\u53d6\u308c\u308b\u306e\u306f\u3001<strong>5\u533a\u5206\u306e\u5408\u8a08106\u4ef6\u306e\u3046\u3061\u3001\u8acb\u6c42\u66f8\u767a\u884c\u6642\u3068\u632f\u8fbc\u524d\u306e2\u6bb5\u968e\u3067\u7d0458%\uff08\u8a08\u7b97\u5024\uff09\u3092\u5360\u3081\u308b<\/strong>\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u8acb\u6c42\u66f8\u3092\u53d7\u3051\u53d6\u3063\u3066\u304b\u3089\u652f\u6255\u3046\u307e\u3067\u306e\u9593\u306b\u78ba\u8a8d\u3092\u5165\u308c\u308c\u3070\u3001\u591a\u304f\u306e\u4e8b\u6848\u306b\u5bfe\u5fdc\u3067\u304d\u308b\u69cb\u9020\u3060\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3067\u3001\u652f\u6255\u306e\u6d41\u308c\u3068\u95a2\u4fc2\u306e\u306a\u3044\u300c\u305d\u306e\u4ed6\u300d\u3082\u7d0426%\uff08\u8a08\u7b97\u5024\uff09\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u8acb\u6c42\u66f8\u306e\u78ba\u8a8d\u3060\u3051\u3067\u306f\u9632\u3052\u306a\u3044\u8a50\u79f0\u304c\u3001\u3053\u306e\u7d0426%\u5206\u3001\u304a\u3088\u305d4\u5206\u306e1\u6b8b\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<h3>\u95a2\u4fc2\u56fd\u306f\u65e5\u672c\u304c\u6700\u591a\u3060\u304c\u30012019\u5e74\u6642\u70b9\u3067\u306f9\u5272\u8d85\u306e\u4e8b\u6848\u3067\u82f1\u8a9e\u304c\u4f7f\u308f\u308c\u3066\u3044\u305f<\/h3>\n<p>\u540c\u30582019\u5e74\u8abf\u67fb\u3067\u306f\u3001\u4e8b\u6848\u306b\u95a2\u4fc2\u3057\u305f\u56fd\u3068\u3001\u30e1\u30fc\u30eb\u306b\u4f7f\u308f\u308c\u305f\u8a00\u8a9e\u3082\u96c6\u8a08\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u95a2\u4fc2\u56fd\u306f\u8907\u6570\u306e\u56fd\u3092\u6570\u3048\u308b\u65b9\u5f0f\u3067\u3001\u65e5\u672c\u304c41\u4ef6\u3068\u6700\u591a\u3067\u3057\u305f\u3002\u7d9a\u3044\u3066\u4e2d\u56fd\u304c19\u4ef6\u3001\u30a2\u30e1\u30ea\u30ab\u304c18\u4ef6\u3001\u30a4\u30f3\u30c9\u304c11\u4ef6\u3067\u3059\u3002<\/p>\n<p>\u4f7f\u7528\u8a00\u8a9e\u306f\u3001\u82f1\u8a9e\u304c108\u4ef6\u3001\u65e5\u672c\u8a9e\u304c8\u4ef6\u3067\u3057\u305f\u30021\u3064\u306e\u4e8b\u6848\u3067\u8907\u6570\u306e\u8a00\u8a9e\u304c\u4f7f\u308f\u308c\u305f\u5834\u5408\u306f\u3001\u305d\u308c\u305e\u308c\u306e\u8a00\u8a9e\u3067\u91cd\u8907\u3057\u3066\u6570\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002<strong>117\u4ef6\u306e\u3046\u30619\u5272\u8d85\u306e\u4e8b\u6848\u3067\u82f1\u8a9e\u304c\u4f7f\u308f\u308c\u3066\u3044\u305f<\/strong>\u3053\u3068\u306b\u306a\u308a\u307e\u3059\uff08\u8a08\u7b97\u5024\uff09\u3002<\/p>\n<p>\u3053\u306e\u7d44\u307f\u5408\u308f\u305b\u304b\u3089\u8003\u3048\u3089\u308c\u308b\u306e\u306f\u3001\u6d77\u5916\u62e0\u70b9\u3084\u6d77\u5916\u306e\u53d6\u5f15\u5148\u3068\u82f1\u8a9e\u3067\u3084\u308a\u53d6\u308a\u3059\u308b\u65e5\u672c\u4f01\u696d\u306e\u696d\u52d9\u304c\u72d9\u308f\u308c\u3066\u3044\u305f\u3001\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u305f\u3060\u3057\u56de\u7b54\u4f01\u696d\u306f\u5546\u793e\u3084\u5316\u5b66\u7cfb\u306b\u504f\u3063\u3066\u304a\u308a\u3001\u82f1\u8a9e\u306e\u6bd4\u7387\u304c\u9ad8\u3044\u306e\u306f\u305d\u306e\u5f71\u97ff\u3068\u3082\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u3053\u306e\u8a00\u8a9e\u6bd4\u7387\u306f2019\u5e74\u6642\u70b9\u306e\u3082\u306e\u3067\u3059\u3002IPA\u306f2020\u5e74\u306b\u3001\u82f1\u8a9e\u306e\u6587\u9762\u3092\u65e5\u672c\u8a9e\u306b\u7f6e\u304d\u63db\u3048\u305f\u653b\u6483\u3092\u78ba\u8a8d\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>2026\u5e74\u7248\u306e10\u5927\u8105\u5a01\u306e\u89e3\u8aac\u66f8\u3067\u306f\u3001\u3055\u3089\u306b\u65b0\u3057\u3044\u624b\u53e3\u3082\u7d39\u4ecb\u3055\u308c\u3066\u3044\u307e\u3059\u3002AI\u3067\u4f5c\u3063\u305f\u507d\u306e\u97f3\u58f0\u306b\u3088\u308b\u96fb\u8a71\u3084\u3001\u793e\u9577\u3084\u5f79\u54e1\u3092\u88c5\u3063\u3066LINE\u30b0\u30eb\u30fc\u30d7\u306e\u4f5c\u6210\u3092\u6c42\u3081\u308b\u4f9d\u983c\u3067\u3059\u3002<strong>\u73fe\u5728\u306e\u8a00\u8a9e\u6bd4\u7387\u306f2019\u5e74\u3068\u306f\u7570\u306a\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044<\/strong>\u305f\u3081\u3001\u65e5\u672c\u8a9e\u306e\u30e1\u30fc\u30eb\u3060\u304b\u3089\u5b89\u5168\u3068\u306f\u8003\u3048\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<p style=\"font-size:13px;color:#777;margin:1em 0 0\">\u51fa\u5178: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/archive\/files\/000081866.pdf\">IPA\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u300eBEC\u300f\u306b\u95a2\u3059\u308b\u4e8b\u4f8b\u3068\u6ce8\u610f\u559a\u8d77\uff08\u7b2c\u4e09\u5831\uff09\u300d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.jpcert.or.jp\/research\/20200325_BEC-survey.pdf\">JPCERT\/CC\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306e\u5b9f\u614b\u8abf\u67fb\u5831\u544a\u66f8\u300d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/security\/10threats\/omgdg50000008fi8-att\/kaisetsu_2026_soshiki.pdf\">IPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01 2026\u300d\u89e3\u8aac\u66f8\uff3b\u7d44\u7e54\u7de8\uff3d<\/a><\/p>\n<hr \/>\n<h2>\u7c73\u56fdIC3\u96c6\u8a08\u3067\u306f2016\u5e746\u6708\u301c2019\u5e747\u6708\u306e3\u5e74\u5f37\u3067\u7d0416.6\u4e07\u4ef6\u30fb\u7d04262\u5104\u30c9\u30eb\u306e\u88ab\u5bb3\u304c\u51fa\u3066\u3044\u308b<\/h2>\n<p><img decoding=\"async\" alt=\"\u7c73\u56fdIC3\u306e\u7d71\u8a08\" src=\"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2026\/09\/h2-3-40.png\" \/><\/p>\n<p>BEC\u306e\u88ab\u5bb3\u898f\u6a21\u3092\u793a\u3059\u6570\u5024\u3068\u3057\u3066\u3001\u6700\u3082\u3088\u304f\u5f15\u7528\u3055\u308c\u308b\u306e\u304c\u7c73\u56fdFBI\u306e\u7a93\u53e3\u3067\u3042\u308bIC3\u306e\u96c6\u8a08\u3067\u3059\u30022019\u5e74\u516c\u8868\u5206\u3067\u306f\u30012016\u5e746\u6708\u301c2019\u5e747\u6708\u306b166,349\u4ef6\u3001\u7d04262\u5104\u30c9\u30eb\u306e\u88ab\u5bb3\u304c\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u3053\u3067\u306f\u7c73\u56fd\u306e\u6570\u5024\u306e\u63a8\u79fb\u3092\u78ba\u8a8d\u3057\u305f\u3046\u3048\u3067\u3001\u56fd\u5185\u306e\u8abf\u67fb\u7d50\u679c\u3068\u3001\u7d71\u8a08\u306e\u9650\u754c\u3092\u9806\u306b\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h3>IC3\u306e\u88ab\u5bb3\u7dcf\u984d\u306f\u7d048.5\u500d\u306b\u62e1\u5927\u3057\u3001\u4e3b\u306a\u8981\u56e0\u306f\u4ef6\u6570\u306e\u5897\u52a0<\/h3>\n<p>IC3\u306f2016\u5e74\u30682019\u5e74\u306b\u3001\u672a\u9042\u3092\u542b\u3080BEC\u306e\u88ab\u5bb3\u3092\u96c6\u8a08\u3057\u3066\u516c\u8868\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u516c\u8868\u5e74<\/th>\n<th>\u5bfe\u8c61\u671f\u9593<\/th>\n<th>\u88ab\u5bb3\u4ef6\u6570<\/th>\n<th>\u88ab\u5bb3\u7dcf\u984d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>2016\u5e74<\/td>\n<td>2013\u5e7410\u6708\u301c2016\u5e745\u6708\uff0832\u304b\u6708\uff09<\/td>\n<td>22,143\u4ef6<\/td>\n<td>\u7d0431\u5104\u30c9\u30eb<\/td>\n<\/tr>\n<tr>\n<td>2019\u5e74<\/td>\n<td>2016\u5e746\u6708\u301c2019\u5e747\u6708\uff0838\u304b\u6708\uff09<\/td>\n<td>166,349\u4ef6<\/td>\n<td>\u7d04262\u5104\u30c9\u30eb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-size:13px;color:#777;margin:.5em 0 1em\">\u51fa\u5178: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ic3.gov\/media\/2016\/160614.aspx\">FBI IC3\u300cBusiness E-mail Compromise: The 3.1 Billion Dollar Scam\u300d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ic3.gov\/media\/2019\/190910.aspx\">FBI IC3\u300cBusiness Email Compromise The $26 Billion Scam\u300d<\/a><\/p>\n<p><img decoding=\"async\" alt=\"\u7c73\u56fdIC3 \u88ab\u5bb3\u4ef6\u6570\u30fb\u88ab\u5bb3\u7dcf\u984d\u306e\u671f\u9593\u6bd4\u8f03\" src=\"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2026\/09\/fig2-ic3.png\" \/><\/p>\n<p><strong>\u88ab\u5bb3\u7dcf\u984d\u306f\u7d048.5\u500d\u3001\u4ef6\u6570\u306f\u7d047.5\u500d\u306b\u5897\u3048\u3066\u3044\u307e\u3059\uff08\u8a08\u7b97\u5024\uff09<\/strong>\u30022019\u5e74\u516c\u8868\u5206\u306e1\u4ef6\u3042\u305f\u308a\u306e\u5e73\u5747\u88ab\u5bb3\u984d\u306f\u7d0416\u4e07\u30c9\u30eb\uff08IPA\u306b\u3088\u308b\u7b97\u51fa\uff09\u3067\u3059\u3002<\/p>\n<p>\u3053\u306e\u8868\u304b\u3089\u8aad\u307f\u53d6\u308c\u308b\u306e\u306f\u3001\u62e1\u5927\u306e\u4e2d\u5fc3\u304c\u4ef6\u6570\u306e\u5897\u52a0\u3060\u3068\u3044\u3046\u70b9\u3067\u3059\u30021\u4ef6\u3042\u305f\u308a\u306e\u88ab\u5bb3\u984d\u306f\u7d0413.9\u4e07\u30c9\u30eb\u304b\u3089\u7d0415.8\u4e07\u30c9\u30eb\u3078\u3001\u7d0413%\u306e\u5897\u52a0\u306b\u3068\u3069\u307e\u308a\u307e\u3059\uff08\u8a08\u7b97\u5024\uff09\u3002<\/p>\n<p>\u305f\u3060\u3057\u30012\u3064\u306e\u671f\u9593\u306f\u9577\u3055\u304c\u7570\u306a\u308a\u307e\u3059\uff0832\u304b\u6708\u306838\u304b\u6708\uff09\u3002\u307e\u305f\u3001\u4ef6\u6570\u306f\u5831\u544a\u306e\u53d7\u4ed8\u7bc4\u56f2\u306e\u5e83\u304c\u308a\u306b\u3082\u5de6\u53f3\u3055\u308c\u308b\u305f\u3081\u3001\u5b9f\u969b\u306e\u767a\u751f\u4ef6\u6570\u304c\u540c\u3058\u5272\u5408\u3067\u5897\u3048\u305f\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002<\/p>\n<div style=\"border:2px solid #eb6834;border-radius:8px;background:#fdf3ee;padding:14px 18px;margin:1.5em 0\">\n<p style=\"margin:0 0 8px;font-weight:700;color:#c2521f\">\u6ce8\u610f<\/p>\n<p style=\"margin:0\">\u672c\u8a18\u4e8b\u3067\u6271\u3046IC3\u306e\u6570\u5024\u306f2019\u5e74\u516c\u8868\u5206\u307e\u3067\u3067\u3059\u3002IC3\u306f\u305d\u306e\u5f8c\u30822022\u5e74\u30fb2023\u5e74\u30fb2024\u5e74\u306b\u540c\u7a2e\u306e\u96c6\u8a08\u3092\u516c\u8868\u3057\u3066\u304a\u308a\u3001\u5e74\u6b21\u5831\u544a\u66f8\u3067\u3082BEC\u306e\u88ab\u5bb3\u984d\u3092\u6bce\u5e74\u516c\u8868\u3057\u3066\u3044\u307e\u3059\u30022020\u5e74\u4ee5\u964d\u3082\u540c\u3058\u50be\u5411\u304c\u7d9a\u3044\u3066\u3044\u308b\u304b\u306f\u3001\u3053\u306e\u30c7\u30fc\u30bf\u304b\u3089\u306f\u5224\u65ad\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<\/div>\n<h3>\u56fd\u5185\u3067\u306f2019\u5e74\u8abf\u67fb\u306e117\u4ef6\u3067\u4e0d\u6b63\u8acb\u6c42\u984d\u304c\u7d0424\u5104\u5186\u306b\u306e\u307c\u308a\u3001IPA\u3078\u306e\u60c5\u5831\u63d0\u4f9b\u306f114\u4ef6\u3042\u308b<\/h3>\n<p>\u56fd\u5185\u306b\u3082\u3001BEC\u306e\u88ab\u5bb3\u898f\u6a21\u3092\u793a\u3059\u6570\u5024\u304c\u3042\u308a\u307e\u3059\u3002JPCERT\/CC\u306e2019\u5e74\u8abf\u67fb\u3067\u306f\u3001117\u4ef6\u306e\u4e8b\u6848\u3067\u4e0d\u6b63\u306b\u8acb\u6c42\u3055\u308c\u305f\u91d1\u984d\u304c\u5408\u8a08\u7d0424\u5104\u5186\u306b\u306e\u307c\u308a\u307e\u3057\u305f\u3002\u3053\u308c\u306f\u65e5\u672c\u5186\u306b\u63db\u7b97\u3057\u305f<strong>\u672a\u9042\u3092\u542b\u3080\u4e0d\u6b63\u8acb\u6c42\u984d\u306e\u5408\u8a08<\/strong>\u3067\u3001\u5831\u544a\u66f8\u3067\u306f\u5927\u534a\u306e\u4e8b\u6848\u304c\u5b9f\u5bb3\u306b\u81f3\u3089\u306a\u304b\u3063\u305f\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>IPA\u306b\u3082\u30012015\u5e74\u304b\u30892020\u5e743\u6708\u307e\u3067\u306e\u7d2f\u8a08\u3067114\u4ef6\u306eBEC\u306e\u60c5\u5831\u304c\u5bc4\u305b\u3089\u308c\u3066\u3044\u307e\u3059\u3002<strong>\u3053\u306e\u3046\u306117\u4ef6\u3067\u306f\u3001\u5b9f\u969b\u306b\u304a\u91d1\u3092\u3060\u307e\u3057\u53d6\u3089\u308c\u308b\u88ab\u5bb3\u304c\u78ba\u8a8d\u3055\u308c\u3066\u3044\u307e\u3059<\/strong>\u3002<\/p>\n<p>\u3053\u3053\u3067\u6ce8\u610f\u3057\u305f\u3044\u306e\u306f\u3001IC3\u306e\u7d0416.6\u4e07\u4ef6\u3068IPA\u306e114\u4ef6\u3092\u4e26\u3079\u3066\u300c\u65e5\u672c\u306fBEC\u304c\u5c11\u306a\u3044\u300d\u3068\u8003\u3048\u3066\u306f\u3044\u3051\u306a\u3044\u70b9\u3067\u3059\u3002IC3\u306f\u4e00\u822c\u304b\u3089\u88ab\u5bb3\u5c4a\u3092\u53d7\u3051\u4ed8\u3051\u308b\u516c\u7684\u306a\u7a93\u53e3\u3067\u3001\u7d0416.6\u4e07\u4ef6\u306fIC3\u306b\u52a0\u3048\u3066\u91d1\u878d\u6a5f\u95a2\u306a\u3069\u8907\u6570\u306e\u60c5\u5831\u6e90\u3078\u306e\u5831\u544a\u3092\u5408\u308f\u305b\u305f\u4ef6\u6570\u3067\u3059\u3002\u4e00\u65b9\u3001IPA\u306e\u6570\u5024\u306fJ-CSIP\u306e\u53c2\u52a0\u7d44\u7e54\u306a\u3069\u304b\u3089\u4efb\u610f\u3067\u5bc4\u305b\u3089\u308c\u305f\u60c5\u5831\u306e\u4ef6\u6570\u3067\u3059\u3002<\/p>\n<p>\u6bcd\u96c6\u56e3\u3082\u5831\u544a\u306e\u7d4c\u8def\u3082\u307e\u3063\u305f\u304f\u7570\u306a\u308b\u305f\u3081\u3001\u3053\u306e\u5dee\u306f\u767a\u751f\u4ef6\u6570\u306e\u5dee\u3092\u8868\u3057\u307e\u305b\u3093\u3002\u3080\u3057\u308d\u3001\u672c\u8a18\u4e8b\u306e\u8abf\u67fb\u7bc4\u56f2\u3067\u306f\u3001\u56fd\u5185\u306b\u7db2\u7f85\u7684\u306a\u4ef6\u6570\u306e\u7d71\u8a08\u304c\u898b\u5f53\u305f\u3089\u306a\u3044\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u308b\u3068\u8003\u3048\u308b\u306e\u304c\u59a5\u5f53\u3067\u3059\u3002<\/p>\n<h3>10\u5927\u8105\u5a01\u306b\u306f9\u5e74\u9023\u7d9a\u3067\u9078\u3070\u308c\u3066\u3044\u308b\u4e00\u65b9\u3001\u672c\u8a18\u4e8b\u3067\u4f7f\u3048\u308b\u56fd\u5185\u306e\u5b9a\u91cf\u30c7\u30fc\u30bf\u306f2019\u301c2020\u5e74\u306e\u8abf\u67fb\u304c\u6700\u65b0<\/h3>\n<p>BEC\u306f\u3001IPA\u306e10\u5927\u8105\u5a01\u306b2018\u5e74\u304b\u30899\u5e74\u9023\u7d9a\u3067\u9078\u3070\u308c\u3066\u3044\u307e\u3059\u3002\u4e00\u65b9\u3067\u3001\u56fd\u5185\u306e\u4ef6\u6570\u3084\u91d1\u984d\u3092\u7db2\u7f85\u7684\u306b\u793a\u3059\u516c\u7684\u306a\u7d71\u8a08\u306f\u898b\u5f53\u305f\u308a\u307e\u305b\u3093\u3002IPA\u306e\u300cJ-CSIP\u904b\u7528\u72b6\u6cc1\u300d\u3067\u306f\u53c2\u52a0\u7d44\u7e54\u304b\u3089\u306eBEC\u60c5\u5831\u63d0\u4f9b\u304c\u56db\u534a\u671f\u3054\u3068\u306b\u5831\u544a\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u5168\u56fd\u306e\u767a\u751f\u4ef6\u6570\u3092\u793a\u3059\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u672c\u8a18\u4e8b\u3067\u78ba\u8a8d\u3067\u304d\u305f\u56fd\u5185\u30c7\u30fc\u30bf\u306e\u6700\u65b0\u306f\u3001\u6b21\u306e2\u3064\u3067\u3059\u3002JPCERT\/CC\u306e2019\u5e74\u8abf\u67fb\uff0812\u793e\u30fb117\u4ef6\uff09\u3068\u3001IPA\u306b\u5bc4\u305b\u3089\u308c\u305f2020\u5e743\u6708\u307e\u3067\u306e\u7d2f\u8a08114\u4ef6\u3067\u3059\u3002\u7c73\u56fdIC3\u306e\u6570\u5024\u306f\u3001\u672c\u8a18\u4e8b\u3067\u306f2019\u5e74\u516c\u8868\u5206\u307e\u3067\u3092\u6271\u3063\u3066\u3044\u307e\u3059\uff08IC3\u306f\u305d\u306e\u5f8c\u3082\u66f4\u65b0\u7248\u3092\u516c\u8868\u3057\u3066\u3044\u307e\u3059\uff09\u3002<\/p>\n<p>\u3053\u306e\u72b6\u6cc1\u304b\u3089\u8a00\u3048\u308b\u306e\u306f\u3001<strong>\u4e2d\u5c0f\u4f01\u696d\u306e\u60c5\u30b7\u30b9\u62c5\u5f53\u8005\u304c\u81ea\u793e\u306e\u30ea\u30b9\u30af\u3092\u6570\u5024\u3067\u898b\u7a4d\u3082\u308b\u6750\u6599\u304c\u3001\u516c\u7684\u7d71\u8a08\u306b\u306f\u307e\u3060\u5c11\u306a\u3044<\/strong>\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u8b66\u5bdf\u5e81\u306e\u7d71\u8a08\u3084\u4f01\u696d\u898f\u6a21\u5225\u306e\u88ab\u5bb3\u7387\u306f\u3001\u672c\u8a18\u4e8b\u306e\u8abf\u67fb\u7bc4\u56f2\u3067\u306f\u78ba\u8a8d\u3067\u304d\u3066\u3044\u307e\u305b\u3093\u3002\u6b21\u306e\u7ae0\u3067\u306f\u3001\u88ab\u5bb3\u984d\u306e\u5e45\u304b\u3089\u898f\u6a21\u611f\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p style=\"font-size:13px;color:#777;margin:1em 0 0\">\u51fa\u5178: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ic3.gov\/media\/2016\/160614.aspx\">FBI IC3\u300cBusiness E-mail Compromise: The 3.1 Billion Dollar Scam\u300d\uff082016\u5e746\u670814\u65e5\u516c\u8868\uff09<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ic3.gov\/media\/2019\/190910.aspx\">FBI IC3\u300cBusiness Email Compromise The $26 Billion Scam\u300d\uff082019\u5e749\u670810\u65e5\u516c\u8868\uff09<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.jpcert.or.jp\/research\/20200325_BEC-survey.pdf\">JPCERT\/CC\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306e\u5b9f\u614b\u8abf\u67fb\u5831\u544a\u66f8\u300d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/archive\/files\/000081866.pdf\">IPA\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u300eBEC\u300f\u306b\u95a2\u3059\u308b\u4e8b\u4f8b\u3068\u6ce8\u610f\u559a\u8d77\uff08\u7b2c\u4e09\u5831\uff09\u300d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/security\/10threats\/omgdg50000008fi8-att\/kaisetsu_2026_soshiki.pdf\">IPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01 2026\u300d\u89e3\u8aac\u66f8\uff3b\u7d44\u7e54\u7de8\uff3d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ic3.gov\/PSA\/2024\/PSA240911\">FBI IC3\u300cBusiness Email Compromise: The $55 Billion Scam\u300d\uff082024\u5e749\u670811\u65e5\u516c\u8868\uff09<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ic3.gov\/AnnualReport\/Reports\/2025_IC3Report.pdf\">FBI IC3\u300c2025 IC3 Annual Report\u300d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/security\/j-csip\/ug65p9000000nkvm-att\/fy23-q1-report.pdf\">IPA\u300c\u30b5\u30a4\u30d0\u30fc\u60c5\u5831\u5171\u6709\u30a4\u30cb\u30b7\u30a2\u30c6\u30a3\u30d6\uff08J-CSIP\uff09\u904b\u7528\u72b6\u6cc1\uff3b2023\u5e744\u6708\u301c6\u6708\uff3d\u300d<\/a><\/p>\n<hr \/>\n<h2>BEC\u306e\u88ab\u5bb3\u984d\u306f\u5343\u4e07\u5186\u53f0\u306e\u4e8b\u4f8b\u304b\u3089\u6570\u5341\u5104\u5186\u306e\u4e8b\u4f8b\u307e\u3067\u5e45\u304c\u3042\u308a\u3001\u5831\u9053\u3055\u308c\u308b\u4e8b\u4f8b\u306f\u5927\u578b\u306b\u504f\u308b<\/h2>\n<p><img decoding=\"async\" alt=\"\u88ab\u5bb3\u984d\u306e\u5b9f\u4f8b\" src=\"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2026\/09\/h2-4-40.png\" \/><\/p>\n<p>BEC\u306e\u88ab\u5bb3\u3068\u805e\u304f\u3068\u3001\u6570\u5341\u5104\u5186\u304c\u3060\u307e\u3057\u53d6\u3089\u308c\u305f\u5927\u4f01\u696d\u306e\u4e8b\u4ef6\u3092\u601d\u3044\u6d6e\u304b\u3079\u308b\u65b9\u304c\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u3053\u3067\u306f\u5831\u9053\u3055\u308c\u305f\u4e8b\u4f8b\u3068\u516c\u7684\u306a\u96c6\u8a08\u3092\u4e26\u3079\u3001<strong>\u88ab\u5bb3\u984d\u306e\u5e45\u306e\u5927\u304d\u3055<\/strong>\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<h3>\u56fd\u5185\u4f01\u696d\u95a2\u9023\u3067\u306f3\u5104\u5186\u8d85\u304b\u3089\u7d0440\u5104\u5186\u306e\u5927\u578b\u88ab\u5bb3\u304c\u5831\u9053\u3055\u308c\u3066\u3044\u308b<\/h3>\n<p>\u56fd\u5185\u4f01\u696d\u304c\u95a2\u4fc2\u3059\u308bBEC\u3067\u306f\u3001\u5104\u5186\u5358\u4f4d\u306e\u88ab\u5bb3\u304c\u3053\u308c\u307e\u3067\u306b\u4f55\u5ea6\u3082\u5831\u9053\u3055\u308c\u3066\u3044\u307e\u3059\u3002IPA\u306e\u6ce8\u610f\u559a\u8d77\u8cc7\u6599\u306b\u306f\u3001\u6b21\u306e3\u4ef6\u304c\u7d39\u4ecb\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u6642\u671f<\/th>\n<th>\u88ab\u5bb3\u3092\u53d7\u3051\u305f\u7d44\u7e54<\/th>\n<th>\u88ab\u5bb3\u984d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>2017\u5e7412\u6708<\/td>\n<td>\u822a\u7a7a\u4f1a\u793e<\/td>\n<td>3\u5104\u5186\u8d85<\/td>\n<\/tr>\n<tr>\n<td>2019\u5e748\u6708<\/td>\n<td>\u81ea\u52d5\u8eca\u90e8\u54c1\u30e1\u30fc\u30ab\u30fc\u306e\u6b27\u5dde\u5b50\u4f1a\u793e<\/td>\n<td>\u7d0440\u5104\u5186<\/td>\n<\/tr>\n<tr>\n<td>2019\u5e749\u6708\u4e0b\u65ec<\/td>\n<td>\u65b0\u805e\u793e\u306e\u7c73\u56fd\u5b50\u4f1a\u793e<\/td>\n<td>\u7d042,900\u4e07\u30c9\u30eb\uff08\u7d0432\u5104\u5186\uff09<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"font-size:13px;color:#777;margin:.5em 0 1em\">\u51fa\u5178: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/archive\/files\/000081866.pdf\">IPA\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u300eBEC\u300f\u306b\u95a2\u3059\u308b\u4e8b\u4f8b\u3068\u6ce8\u610f\u559a\u8d77\uff08\u7b2c\u4e09\u5831\uff09\u300d<\/a>\uff08\u5831\u9053\u306b\u57fa\u3065\u304f\u53c2\u8003\u4e8b\u4f8b\uff09<\/p>\n<p>\u3044\u305a\u308c\u3082\u5831\u9053\u306b\u57fa\u3065\u304f\u4e8b\u4f8b\u3067\u3001IPA\u306e\u8cc7\u6599\u3067\u306f\u793e\u540d\u306f\u516c\u8868\u3055\u308c\u3066\u3044\u307e\u305b\u3093\u3002<\/p>\n<p>\u6ce8\u76ee\u3057\u305f\u3044\u306e\u306f\u3001<strong>2019\u5e74\u306e2\u4ef6\u304c\u3069\u3061\u3089\u3082\u6d77\u5916\u5b50\u4f1a\u793e\u3067\u8d77\u304d\u3066\u3044\u308b<\/strong>\u70b9\u3067\u3059\u3002\u524d\u306e\u7ae0\u3067\u7d39\u4ecb\u3057\u305f\u300c\u6d77\u5916\u3068\u82f1\u8a9e\u3067\u3084\u308a\u53d6\u308a\u3059\u308b\u696d\u52d9\u304c\u72d9\u308f\u308c\u3066\u3044\u305f\u300d\u3068\u3044\u3046\u898b\u65b9\u3068\u3082\u3001\u540c\u3058\u65b9\u5411\u306e\u4e8b\u4f8b\u3068\u3044\u3048\u307e\u3059\u3002<\/p>\n<p>\u305f\u3060\u3057\u3001\u3053\u308c\u3089\u306f\u3042\u304f\u307e\u3067\u5831\u9053\u3055\u308c\u305f\u5927\u578b\u306e\u4e8b\u4f8b\u3067\u3059\u3002BEC\u306e\u5178\u578b\u7684\u306a\u88ab\u5bb3\u984d\u3092\u8868\u3059\u3082\u306e\u3067\u306f\u306a\u3044\u70b9\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>2025\u5e741\u6708\u306b\u516c\u8868\u3055\u308c\u305f\u4e8b\u4f8b\u3067\u306f\u3001\u5b50\u4f1a\u793e\u304c\u865a\u507d\u306e\u652f\u6255\u4f9d\u983c\u306b\u5fdc\u3058\u3001\u7d041,400\u4e07\u5186\u306e\u88ab\u5bb3\u304c\u51fa\u3066\u3044\u308b<\/h3>\n<p>\u5927\u578b\u306e\u4e8b\u4f8b\u3070\u304b\u308a\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002IPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01 2026\u300d\u306e\u89e3\u8aac\u66f8\u306b\u306f\u30012025\u5e741\u6708\u306b\u30e2\u30c0\u30ea\u30b9\u793e\u304c\u516c\u8868\u3057\u305f\u3001\u540c\u793e\u5b50\u4f1a\u793e\u306e\u4e8b\u4f8b\u304c\u63b2\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u4e8b\u4f8b\u3067\u306f\u3001<strong>\u5b50\u4f1a\u793e\u304c\u865a\u507d\u306e\u652f\u6255\u4f9d\u983c\u306b\u5fdc\u3058\u3066\u3057\u307e\u3044\u3001\u7d041,400\u4e07\u5186\u306e\u88ab\u5bb3\u304c\u51fa\u307e\u3057\u305f<\/strong>\u3002\u507d\u306e\u30e1\u30fc\u30eb\u306f\u3001\u4e57\u3063\u53d6\u3089\u308c\u305f\u59d4\u8a17\u5148\u62c5\u5f53\u8005\u306e\u6b63\u898f\u306e\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u9001\u3089\u308c\u3066\u3044\u307e\u3057\u305f\uff08\u985e\u578b3\u306e\u624b\u53e3\u3067\u3059\uff09\u3002\u5104\u5186\u5358\u4f4d\u306e\u5831\u9053\u4e8b\u4f8b\u3068\u6bd4\u3079\u308b\u3068\u5c0f\u3055\u304f\u898b\u3048\u307e\u3059\u304c\u3001\u591a\u304f\u306e\u4f01\u696d\u306b\u3068\u3063\u3066\u8efd\u304f\u6271\u3048\u308b\u984d\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u3053\u306e\u4e8b\u4f8b\u304c\u793a\u3059\u306e\u306f\u3001BEC\u304c\u5927\u4f01\u696d\u306e\u672c\u793e\u3060\u3051\u306e\u554f\u984c\u3067\u306f\u306a\u3044\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002\u5b50\u4f1a\u793e\u3084\u95a2\u9023\u4f1a\u793e\u306e\u7d4c\u7406\u696d\u52d9\u3082\u3001\u540c\u3058\u3088\u3046\u306b\u72d9\u308f\u308c\u307e\u3059\u3002<\/p>\n<p>\u30b0\u30eb\u30fc\u30d7\u4f1a\u793e\u304c\u3042\u308b\u4f01\u696d\u3067\u306f\u3001\u652f\u6255\u306e\u78ba\u8a8d\u30eb\u30fc\u30eb\u3092\u5b50\u4f1a\u793e\u306b\u3082\u5e83\u3052\u3066\u304a\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u81ea\u793e\u306e\u898f\u7a0b\u3060\u3051\u3067\u306a\u304f\u3001\u30b0\u30eb\u30fc\u30d7\u5168\u4f53\u306e\u904b\u7528\u3092\u4e00\u5ea6\u78ba\u8a8d\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>JPCERT\/CC\u8abf\u67fb\u306e\u7d0424\u5104\u5186\u306f\u672a\u9042\u3092\u542b\u3080\u4e0d\u6b63\u8acb\u6c42\u984d\u3067\u30011\u4ef6\u3042\u305f\u308a\u306e\u88ab\u5bb3\u984d\u306f\u4e8b\u6848\u3054\u3068\u306b\u5927\u304d\u304f\u7570\u306a\u308b<\/h3>\n<p>JPCERT\/CC\u306e2019\u5e74\u8abf\u67fb\u3067\u306f\u3001117\u4ef6\u3067\u4e0d\u6b63\u306b\u8acb\u6c42\u3055\u308c\u305f\u91d1\u984d\u306e\u5408\u8a08\u304c\u7d0424\u5104\u5186\u3067\u3057\u305f\u3002\u3053\u308c\u306f<strong>\u672a\u9042\u3092\u542b\u3080\u4e0d\u6b63\u8acb\u6c42\u984d\u306e\u5408\u8a08<\/strong>\u3067\u3001\u5831\u544a\u66f8\u3067\u306f\u5927\u534a\u306e\u4e8b\u6848\u304c\u5b9f\u5bb3\u306b\u81f3\u3089\u306a\u304b\u3063\u305f\u3068\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3053\u306e\u91d1\u984d\u3092\u4ef6\u6570\u3067\u5272\u3063\u3066\u30821\u4ef6\u3042\u305f\u308a\u306e\u88ab\u5bb3\u984d\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u7c73\u56fdIC3\u306e2019\u5e74\u516c\u8868\u5206\u3067\u306f\u30011\u4ef6\u3042\u305f\u308a\u306e\u5e73\u5747\u88ab\u5bb3\u984d\u306f\u7d0416\u4e07\u30c9\u30eb\uff08\u7d041,700\u4e07\u5186\u76f8\u5f53\u3001IPA\u306b\u3088\u308b\u7b97\u51fa\uff09\u3067\u3059\u3002\u305f\u3060\u3057\u3001IC3\u306e\u96c6\u8a08\u3082\u672a\u9042\u3092\u542b\u307f\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" alt=\"BEC\u88ab\u5bb3\u984d\u306e\u898f\u6a21\u6bd4\u8f03\uff08\u5bfe\u6570\u8ef8\uff09\" src=\"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2026\/09\/fig3-damage.png\" \/><\/p>\n<p>\u500b\u5225\u306e\u4e8b\u4f8b\u3092\u6bd4\u3079\u308b\u3068\u3001\u88ab\u5bb3\u984d\u306e\u5e45\u304c\u5206\u304b\u308a\u307e\u3059\u30022025\u5e74\u306e\u30e2\u30c0\u30ea\u30b9\u793e\u5b50\u4f1a\u793e\u306e\u4e8b\u4f8b\u306f\u7d041,400\u4e07\u5186\u3067\u3057\u305f\u3002\u5831\u9053\u3055\u308c\u305f3\u5104\u5186\u8d85\u301c\u7d0440\u5104\u5186\u306e\u4e8b\u4f8b\u3068\u306f\u3001\u7d0421\u301c290\u500d\u306e\u958b\u304d\u304c\u3042\u308a\u307e\u3059\uff08\u8a08\u7b97\u5024\uff09\u3002<\/p>\n<p>\u3053\u306e\u6bd4\u8f03\u304b\u3089\u8a00\u3048\u308b\u306e\u306f\u3001<mark>\u5831\u9053\u3055\u308c\u308b\u5104\u5186\u5358\u4f4d\u306e\u4e8b\u4ef6\u3060\u3051\u304cBEC\u306e\u88ab\u5bb3\u3067\u306f\u306a\u3044<\/mark>\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<strong>\u5343\u4e07\u5186\u5358\u4f4d\u306e\u640d\u5931\u3067\u3082\u4e2d\u5c0f\u4f01\u696d\u306e\u7d4c\u55b6\u306b\u306f\u5927\u304d\u304f\u97ff\u304f\u305f\u3081\u3001\u300c\u81ea\u793e\u306b\u306f\u95a2\u4fc2\u306a\u3044\u300d\u3068\u8003\u3048\u308b\u6839\u62e0\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002<\/strong><\/p>\n<div style=\"border:2px solid #eb6834;border-radius:8px;background:#fdf3ee;padding:14px 18px;margin:1.5em 0\">\n<p style=\"margin:0 0 8px;font-weight:700;color:#c2521f\">\u6ce8\u610f<\/p>\n<p style=\"margin:0\">\u7d0424\u5104\u5186\u306f\u78ba\u5b9a\u3057\u305f\u88ab\u5bb3\u984d\u3067\u306f\u306a\u304f\u3001\u672a\u9042\u3092\u542b\u3080\u8acb\u6c42\u984d\u306e\u5408\u8a08\u3067\u3059\u3002IC3\u306e\u5e73\u5747\u5024\u3082\u672a\u9042\u3092\u542b\u307f\u3001\u5c11\u6570\u306e\u5de8\u984d\u4e8b\u6848\u306b\u5f15\u3063\u5f35\u3089\u308c\u308b\u70b9\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<\/div>\n<p style=\"font-size:13px;color:#777;margin:1em 0 0\">\u51fa\u5178: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/archive\/files\/000081866.pdf\">IPA\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u300eBEC\u300f\u306b\u95a2\u3059\u308b\u4e8b\u4f8b\u3068\u6ce8\u610f\u559a\u8d77\uff08\u7b2c\u4e09\u5831\uff09\u300d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/security\/10threats\/omgdg50000008fi8-att\/kaisetsu_2026_soshiki.pdf\">IPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01 2026\u300d\u89e3\u8aac\u66f8\uff3b\u7d44\u7e54\u7de8\uff3d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.jpcert.or.jp\/research\/20200325_BEC-survey.pdf\">JPCERT\/CC\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306e\u5b9f\u614b\u8abf\u67fb\u5831\u544a\u66f8\u300d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ic3.gov\/media\/2019\/190910.aspx\">FBI IC3\u300cBusiness Email Compromise The $26 Billion Scam\u300d\uff082019\u5e749\u670810\u65e5\u516c\u8868\uff09<\/a><\/p>\n<hr \/>\n<h2>BEC\u5bfe\u7b56\u306e\u57fa\u672c\u306f\u3001\u632f\u8fbc\u5148\u306e\u5909\u66f4\u3092\u30e1\u30fc\u30eb\u4ee5\u5916\u306e\u624b\u6bb5\u3067\u78ba\u8a8d\u3059\u308b\u30eb\u30fc\u30eb\u3065\u304f\u308a<\/h2>\n<p><img decoding=\"async\" alt=\"\u5bfe\u7b56\u306e\u57fa\u672c\" src=\"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2026\/09\/h2-5-40.png\" \/><\/p>\n<p>BEC\u5bfe\u7b56\u3068\u3044\u3046\u3068\u3001\u30e1\u30fc\u30eb\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u88fd\u54c1\u3092\u601d\u3044\u6d6e\u304b\u3079\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3057\u304b\u30572019\u5e74\u8abf\u67fb\u3067\u306f\u624b\u53e3\u306e\u7d0475%\u304c\u8acb\u6c42\u66f8\u306e\u507d\u88c5\u3067\u3001\u72d9\u308f\u308c\u3066\u3044\u308b\u306e\u306f\u652f\u6255\u306e\u696d\u52d9\u305d\u306e\u3082\u306e\u3067\u3059\u3002<\/p>\n<p>IPA\u306b\u5bc4\u305b\u3089\u308c\u305f\u4e8b\u4f8b\u3067\u3082\u3001\u4e00\u90e8\u306f\u5b9f\u969b\u306e\u9001\u91d1\u307e\u3067\u9032\u3093\u3067\u3044\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001<strong>\u6280\u8853\u5bfe\u7b56\u3088\u308a\u5148\u306b\u3001\u652f\u6255\u306e\u624b\u9806\u306b\u78ba\u8a8d\u3092\u7d44\u307f\u8fbc\u3080\u696d\u52d9\u30eb\u30fc\u30eb\u3092\u6574\u3048\u308b\u3053\u3068<\/strong>\u304c\u5927\u5207\u3067\u3059\u3002<\/p>\n<h3>IPA\u306b\u5bc4\u305b\u3089\u308c\u305f\u4e8b\u4f8b\u306e\u7d047\u4ef6\u306b1\u4ef6\u306f\u9001\u91d1\u307e\u3067\u9032\u3093\u3067\u304a\u308a\u3001\u4eba\u306e\u6ce8\u610f\u529b\u3060\u3051\u3067\u306f\u9632\u304e\u304d\u308c\u306a\u3044<\/h3>\n<p>IPA\u306b2015\u5e74\u304b\u30892020\u5e743\u6708\u307e\u3067\u306b\u5bc4\u305b\u3089\u308c\u305fBEC\u306e\u60c5\u5831\u306f114\u4ef6\u3067\u3059\u3002\u305d\u306e\u3046\u3061\u91d1\u92ad\u88ab\u5bb3\u304c\u78ba\u8a8d\u3055\u308c\u305f\u306e\u306f17\u4ef6\u3067\u3001\u5272\u5408\u306b\u3059\u308b\u3068\u7d0415%\u306b\u306a\u308a\u307e\u3059\uff08\u8a08\u7b97\u5024\uff09\u3002<\/p>\n<p>\u3053\u306e\u6570\u5024\u304b\u3089\u8aad\u307f\u53d6\u308c\u308b\u306e\u306f\u3001\u591a\u304f\u306e\u653b\u6483\u306f\u9001\u91d1\u306e\u524d\u306b\u6c17\u3065\u304b\u308c\u3066\u3044\u308b\u4e00\u65b9\u3001<strong>\u7d047\u4ef6\u306b1\u4ef6\u306f\u5b9f\u969b\u306b\u9001\u91d1\u307e\u3067\u9032\u3093\u3067\u3044\u308b<\/strong>\u3068\u3044\u3046\u70b9\u3067\u3059\u3002\u300c\u6c17\u3065\u3051\u3070\u9632\u3052\u308b\u300d\u653b\u6483\u3067\u3042\u3063\u3066\u3082\u3001\u300c\u5fc5\u305a\u6c17\u3065\u3051\u308b\u300d\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n<p>\u306a\u304a\u3001IPA\u3078\u306e\u60c5\u5831\u63d0\u4f9b\u306f\u4efb\u610f\u306e\u305f\u3081\u3001\u3053\u306e\u5272\u5408\u3092\u5168\u56fd\u306e\u88ab\u5bb3\u7387\u3068\u3057\u3066\u4e00\u822c\u5316\u3059\u308b\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u308c\u3067\u3082\u3001\u4eba\u306e\u6ce8\u610f\u529b\u3060\u3051\u306b\u983c\u308b\u5bfe\u7b56\u306b\u306f\u9650\u754c\u304c\u3042\u308b\u3053\u3068\u306f\u8aad\u307f\u53d6\u308c\u307e\u3059\u3002<\/p>\n<p>\u5f93\u696d\u54e1\u6559\u80b2\u306f\u3001\u4e0d\u5be9\u306a\u30e1\u30fc\u30eb\u306b\u300c\u6c17\u3065\u304f\u4eba\u3092\u5897\u3084\u3059\u300d\u305f\u3081\u306e\u65bd\u7b56\u3067\u3059\u3002<a href=\"https:\/\/venu-sys.co.jp\/jo-sys\/10016\/\">\u6a19\u7684\u578b\u653b\u6483\u30e1\u30fc\u30eb\u8a13\u7df4<\/a>\u306a\u3069\u306e\u6559\u80b2\u3068\u3001\u78ba\u8a8d\u624b\u9806\u306e\u898f\u7a0b\u5316\u3092\u30bb\u30c3\u30c8\u3067\u9032\u3081\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3>\u8acb\u6c42\u66f8\u306e\u53d7\u9818\u304b\u3089\u632f\u8fbc\u307e\u3067\u306e\u9593\u306b\u3001\u96fb\u8a71\u306a\u3069\u5225\u7d4c\u8def\u3067\u306e\u78ba\u8a8d\u3092\u5fc5\u305a\u5165\u308c\u308b<\/h3>\n<p>\u78ba\u8a8d\u3092\u5165\u308c\u308b\u3079\u304d\u30bf\u30a4\u30df\u30f3\u30b0\u306f\u3001\u30c7\u30fc\u30bf\u304b\u3089\u306f\u3063\u304d\u308a\u3057\u3066\u3044\u307e\u3059\u3002JPCERT\/CC\u306e2019\u5e74\u8abf\u67fb\u3067\u306f\u3001\u8a50\u79f0\u306f\u8acb\u6c42\u66f8\u767a\u884c\u6642\u304c33\u4ef6\u3001\u632f\u8fbc\u524d\u304c29\u4ef6\u3068\u3001\u3053\u306e2\u6bb5\u968e\u306b\u96c6\u4e2d\u3057\u3066\u3044\u307e\u3057\u305f\u3002<\/p>\n<p>\u3053\u306e\u5206\u5e03\u3068\u3001\u624b\u53e3\u306e\u7d0475%\u304c\u8acb\u6c42\u66f8\u306e\u507d\u88c5\u3067\u3042\u308b\u3053\u3068\u3092\u5408\u308f\u305b\u308b\u3068\u3001\u8acb\u6c42\u66f8\u306e\u53d7\u9818\u304b\u3089\u632f\u8fbc\u307e\u3067\u306e\u9593\u304c\u6700\u3082\u91cd\u8981\u306a\u78ba\u8a8d\u30dd\u30a4\u30f3\u30c8\u306b\u306a\u308a\u307e\u3059\u3002IPA\u306e\u89e3\u8aac\u66f8\u3084JPCERT\/CC\u306e\u5831\u544a\u66f8\u3067\u3082\u3001\u30e1\u30fc\u30eb\u4ee5\u5916\u306e\u624b\u6bb5\u3067\u306e\u78ba\u8a8d\u3084\u627f\u8a8d\u30d5\u30ed\u30fc\u306e\u6574\u5099\u304c\u6319\u3052\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<div style=\"border:2px solid #2d4f8f;border-radius:8px;background:#f2f5fb;padding:14px 18px;margin:1.5em 0\">\n<p style=\"margin:0 0 8px;font-weight:700;color:#2d4f8f\">\u632f\u8fbc\u524d\u306e\u78ba\u8a8d\u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8<\/p>\n<ul style=\"margin:0;padding-left:20px\">\n<li>\u632f\u8fbc\u5148\u306e\u5909\u66f4\u306f\u3001\u30e1\u30fc\u30eb\u306b\u66f8\u304b\u308c\u305f\u756a\u53f7\u3067\u306f\u306a\u304f\u3001\u4ee5\u524d\u304b\u3089\u628a\u63e1\u3057\u3066\u3044\u308b\u96fb\u8a71\u756a\u53f7\u306b\u304b\u3051\u3066\u78ba\u8a8d\u3057\u307e\u3059<\/li>\n<li>\u632f\u8fbc\u5148\u306e\u5909\u66f4\u306f\u3001\u62c5\u5f53\u80051\u4eba\u3067\u51e6\u7406\u305b\u305a\u3001\u30c0\u30d6\u30eb\u30c1\u30a7\u30c3\u30af\u3068\u627f\u8a8d\u30d5\u30ed\u30fc\u3092\u5fc5\u305a\u901a\u3057\u307e\u3059<\/li>\n<li>\u300c\u81f3\u6025\u300d\u300c\u5185\u5bc6\u306b\u300d\u306a\u3069\u3001\u6025\u304e\u3084\u79d8\u5bc6\u6271\u3044\u3092\u6c42\u3081\u308b\u4f9d\u983c\u307b\u3069\u3001\u624b\u9806\u3092\u7701\u304b\u305a\u306b\u78ba\u8a8d\u3057\u307e\u3059<\/li>\n<\/ul>\n<\/div>\n<p>\u3072\u3068\u308a\u60c5\u30b7\u30b9\u306e\u5834\u5408\u3001\u3059\u3079\u3066\u3092\u81ea\u5206\u3067\u904b\u7528\u3059\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002<strong>\u60c5\u30b7\u30b9\u306f\u898f\u7a0b\u306e\u6848\u3068\u6280\u8853\u9762\u306e\u5bfe\u7b56\u3092\u7528\u610f\u3057\u3001\u65e5\u3005\u306e\u78ba\u8a8d\u306f\u7d4c\u7406\u90e8\u9580\u304c\u62c5\u3046<\/strong>\u3068\u3044\u3046\u5f79\u5272\u5206\u62c5\u304c\u73fe\u5b9f\u7684\u3067\u3059\u3002<\/p>\n<h3>\u652f\u6255\u3068\u7121\u95a2\u4fc2\u306a\u7d044\u5206\u306e1\u306e\u8a50\u79f0\u306b\u306f\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3068MFA\u306e\u6280\u8853\u5bfe\u7b56\u3067\u5099\u3048\u308b<\/h3>\n<p>JPCERT\/CC\u306e2019\u5e74\u8abf\u67fb\u306e\u8a50\u79f0\u30bf\u30a4\u30df\u30f3\u30b0\u5225\u306e\u96c6\u8a08\uff08\u8a08106\u4ef6\uff09\u3067\u306f\u3001\u300c\u305d\u306e\u4ed6\u300d\u306f28\u4ef6\u3001\u7d0426%\u3067\u3057\u305f\uff08\u8a08\u7b97\u5024\uff09\u3002<\/p>\n<p>\u3053\u306e\u7d044\u5206\u306e1\u306b\u306f\u3001\u7d4c\u55b6\u8005\u3078\u306e\u306a\u308a\u3059\u307e\u3057\u306a\u3069\u3001\u8acb\u6c42\u66f8\u306e\u78ba\u8a8d\u3067\u306f\u9632\u3052\u306a\u3044\u985e\u578b\u304c\u542b\u307e\u308c\u308b\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u6b21\u306e\u6280\u8853\u5bfe\u7b56\u3092\u7d44\u307f\u5408\u308f\u305b\u307e\u3059\u3002<\/p>\n<table>\n<thead>\n<tr>\n<th>\u5bfe\u7b56<\/th>\n<th>\u76ee\u7684<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\uff08DMARC\u30fbSPF\u30fbDKIM\uff09<\/td>\n<td>\u30c9\u30e1\u30a4\u30f3\u3092\u8a50\u79f0\u3057\u305f\u30e1\u30fc\u30eb\u3092\u898b\u5206\u3051\u308b<\/td>\n<\/tr>\n<tr>\n<td>S\/MIME\u306a\u3069\u306e\u96fb\u5b50\u7f72\u540d<\/td>\n<td>\u9001\u4fe1\u8005\u304c\u672c\u7269\u304b\u3092\u78ba\u8a8d\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u985e\u4f3c\u30c9\u30e1\u30a4\u30f3\u306e\u76e3\u8996<\/td>\n<td>\u81ea\u793e\u540d\u306b\u4f3c\u305f\u30c9\u30e1\u30a4\u30f3\u306e\u53d6\u5f97\u3092\u628a\u63e1\u3059\u308b<\/td>\n<\/tr>\n<tr>\n<td>\u79c1\u6709\u30e1\u30fc\u30eb\u30a2\u30c9\u30ec\u30b9\u306e\u696d\u52d9\u5229\u7528\u7981\u6b62<\/td>\n<td>\u500b\u4eba\u30a2\u30c9\u30ec\u30b9\u304b\u3089\u306e\u507d\u306e\u9023\u7d61\u3092\u898b\u5206\u3051\u308b<\/td>\n<\/tr>\n<tr>\n<td>FIDO2\uff08\u30d1\u30b9\u30ad\u30fc\uff09\u306a\u3069\u5f37\u56fa\u306aMFA<\/td>\n<td>AiTM\u653b\u6483\u3082\u60f3\u5b9a\u3057\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u4e57\u3063\u53d6\u308a\u3092\u9632\u3050<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u306a\u304a\u3001\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3067\u9632\u3052\u308b\u306e\u306f\u3001\u30c9\u30e1\u30a4\u30f3\u305d\u306e\u3082\u306e\u3092\u8a50\u79f0\u3057\u305f\u30e1\u30fc\u30eb\u3067\u3059\u3002\u985e\u4f3c\u30c9\u30e1\u30a4\u30f3\u3084\u3001\u4e57\u3063\u53d6\u3089\u308c\u305f\u6b63\u898f\u306e\u30a2\u30ab\u30a6\u30f3\u30c8\u304b\u3089\u9001\u3089\u308c\u305f\u30e1\u30fc\u30eb\u306f\u9632\u3052\u307e\u305b\u3093\u3002\u305d\u306e\u305f\u3081\u3001\u5225\u7d4c\u8def\u3067\u306e\u78ba\u8a8d\u3068\u7d44\u307f\u5408\u308f\u305b\u308b\u3053\u3068\u304c\u524d\u63d0\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u7279\u5b9a\u306e\u88fd\u54c1\u306e\u5c0e\u5165\u304c\u76ee\u7684\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<strong>\u307e\u3060\u624b\u3064\u304b\u305a\u306e\u5bfe\u7b56\u304c\u3069\u308c\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068<\/strong>\u304b\u3089\u59cb\u3081\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p style=\"font-size:13px;color:#777;margin:1em 0 0\">\u51fa\u5178: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/archive\/files\/000081866.pdf\">IPA\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u300eBEC\u300f\u306b\u95a2\u3059\u308b\u4e8b\u4f8b\u3068\u6ce8\u610f\u559a\u8d77\uff08\u7b2c\u4e09\u5831\uff09\u300d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.jpcert.or.jp\/research\/20200325_BEC-survey.pdf\">JPCERT\/CC\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306e\u5b9f\u614b\u8abf\u67fb\u5831\u544a\u66f8\u300d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/security\/10threats\/omgdg50000008fi8-att\/kaisetsu_2026_soshiki.pdf\">IPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01 2026\u300d\u89e3\u8aac\u66f8\uff3b\u7d44\u7e54\u7de8\uff3d<\/a><\/p>\n<hr \/>\n<h2>\u3072\u3068\u308a\u60c5\u30b7\u30b9\u306f\u307e\u305a\u632f\u8fbc\u5148\u5909\u66f4\u306e\u78ba\u8a8d\u30eb\u30fc\u30eb\u304b\u3089\u6574\u3048\u308b\u306e\u304c\u73fe\u5b9f\u7684<\/h2>\n<p><img decoding=\"async\" alt=\"\u307e\u3068\u3081\" src=\"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2026\/09\/h2-6-36.png\" \/><\/p>\n<p>BEC\u5bfe\u7b56\u306f\u3001\u3084\u308b\u3079\u304d\u3053\u3068\u304c\u591a\u304f\u898b\u3048\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u3057\u304b\u3057\u516c\u7684\u30c7\u30fc\u30bf\u304b\u3089\u898b\u308b\u3068\u3001<strong>\u6700\u521d\u306b\u624b\u3092\u4ed8\u3051\u308b\u3079\u304d\u306a\u306e\u306f\u632f\u8fbc\u5148\u5909\u66f4\u306e\u78ba\u8a8d\u30eb\u30fc\u30eb<\/strong>\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u306e\u8981\u70b9\u30923\u3064\u306b\u7d5e\u3063\u3066\u632f\u308a\u8fd4\u308a\u307e\u3059\u3002<\/p>\n<div style=\"border:2px solid #2d4f8f;border-radius:8px;background:#f2f5fb;padding:14px 18px;margin:1.5em 0\">\n<p style=\"margin:0 0 8px;font-weight:700;color:#2d4f8f\">\u3053\u306e\u8a18\u4e8b\u306e\u307e\u3068\u3081<\/p>\n<ul style=\"margin:0;padding-left:20px\">\n<li>BEC\u306fIPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01\u300d\u7d44\u7e54\u7de8\u306b\u30012026\u5e74\u7248\u307e\u30679\u5e74\u9023\u7d9a\u3067\u9078\u3070\u308c\u3066\u3044\u307e\u3059<\/li>\n<li>JPCERT\/CC\u306e2019\u5e74\u8abf\u67fb\u3067\u306f\u3001\u624b\u53e3\u306e\u7d0475%\u304c\u53d6\u5f15\u5148\u3068\u306e\u8acb\u6c42\u66f8\u306e\u507d\u88c5\u3067\u3057\u305f<\/li>\n<li>IPA\u306b\u5bc4\u305b\u3089\u308c\u305f\u4e8b\u4f8b\u306e\u591a\u304f\u306f\u672a\u9042\u3067\u3057\u305f\u304c\u30012020\u5e743\u6708\u307e\u3067\u306e\u7d2f\u8a08\u306717\u4ef6\u306f\u9001\u91d1\u307e\u3067\u9032\u3093\u3067\u3044\u307e\u3059<\/li>\n<\/ul>\n<\/div>\n<p>\u624b\u53e3\u306e\u4e2d\u5fc3\u304c\u8acb\u6c42\u66f8\u306e\u507d\u88c5\u3067\u3042\u308b\u4ee5\u4e0a\u3001\u8acb\u6c42\u66f8\u306e\u53d7\u9818\u304b\u3089\u632f\u8fbc\u307e\u3067\u306e\u78ba\u8a8d\u304c\u6700\u3082\u52b9\u679c\u7684\u3067\u3059\u3002\u305d\u306e\u3046\u3048\u3067\u3001\u652f\u6255\u3068\u95a2\u4fc2\u306e\u306a\u3044\u8a50\u79f0\u306b\u5099\u3048\u3066\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u3084MFA\u3092\u6574\u3048\u3066\u3044\u304f\u9806\u756a\u304c\u3001\u9650\u3089\u308c\u305f\u4eba\u6570\u306e\u60c5\u30b7\u30b9\u3067\u3082\u53d6\u308a\u7d44\u307f\u3084\u3059\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n<p>\u4e07\u304c\u4e00\u3001\u507d\u306e\u4f9d\u983c\u306b\u5fdc\u3058\u3066\u9001\u91d1\u3057\u3066\u3057\u307e\u3063\u305f\u5834\u5408\u306f\u3001\u3059\u3050\u306b\u9001\u91d1\u5143\u306e\u9280\u884c\uff08\u81ea\u793e\u304c\u632f\u8fbc\u3092\u4f9d\u983c\u3057\u305f\u9280\u884c\uff09\u306b\u9023\u7d61\u3057\u3066\u7d44\u623b\u3057\u3092\u4f9d\u983c\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3042\u308f\u305b\u3066\u3001\u653b\u6483\u8005\u304b\u3089\u5c4a\u3044\u305f\u30e1\u30fc\u30eb\u3092\u4fdd\u5b58\u3057\u3001\u8b66\u5bdf\u306b\u76f8\u8ac7\u3057\u3066\u304f\u3060\u3055\u3044\u3002<strong>\u307e\u305a\u306f\u7d4c\u7406\u90e8\u9580\u3068\u8a71\u3057\u5408\u3044\u3001\u632f\u8fbc\u5148\u5909\u66f4\u306e\u78ba\u8a8d\u624b\u9806\u3092\u6587\u66f8\u306b\u3059\u308b\u3068\u3053\u308d\u304b\u3089\u59cb\u3081\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/strong><\/p>\n<p style=\"font-size:13px;color:#777;margin:1em 0 0\">\u51fa\u5178: <a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/security\/10threats\/omgdg50000008fi8-att\/kaisetsu_2026_soshiki.pdf\">IPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01 2026\u300d\u89e3\u8aac\u66f8\uff3b\u7d44\u7e54\u7de8\uff3d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.jpcert.or.jp\/research\/20200325_BEC-survey.pdf\">JPCERT\/CC\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306e\u5b9f\u614b\u8abf\u67fb\u5831\u544a\u66f8\u300d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/archive\/files\/000081866.pdf\">IPA\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u300eBEC\u300f\u306b\u95a2\u3059\u308b\u4e8b\u4f8b\u3068\u6ce8\u610f\u559a\u8d77\uff08\u7b2c\u4e09\u5831\uff09\u300d<\/a>\uff0f<a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.npa.go.jp\/bureau\/cyber\/countermeasures\/bec.html\">\u8b66\u5bdf\u5e81\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306b\u6ce8\u610f\uff01\u300d<\/a><\/p>\n<hr \/>\n<h2>\u65b0\u4eba\u30fb\u3072\u3068\u308a\u60c5\u30b7\u30b9\u306e\u5b66\u7fd2\u306f\u60c5\u30b7\u30b9\u30ab\u30ec\u30c3\u30b8\u3067<\/h2>\n<p><a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.josys-college.com\/\"><img decoding=\"async\" src=\"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2026\/08\/cta-josys-college.jpg\" alt=\"\u60c5\u30b7\u30b9\u30ab\u30ec\u30c3\u30b8\uff5c\u65b0\u4eba\u30fb\u3072\u3068\u308a\u60c5\u30b7\u30b9\u306e\u305f\u3081\u306e\u30de\u30a4\u30af\u30ed\u30e9\u30fc\u30cb\u30f3\u30b0LMS\" style=\"max-width:100%;height:auto\"><\/a><\/p>\n<p>\u3053\u306e\u8a18\u4e8b\u3067\u7d39\u4ecb\u3057\u305f\u632f\u8fbc\u524d\u306e\u78ba\u8a8d\u30eb\u30fc\u30eb\u3084\u9001\u4fe1\u30c9\u30e1\u30a4\u30f3\u8a8d\u8a3c\u306f\u3001\u62c5\u5f53\u8005\u306e\u77e5\u8b58\u3084\u7d4c\u9a13\u306b\u3088\u3063\u3066\u904b\u7528\u306e\u8cea\u304c\u5909\u308f\u308a\u3084\u3059\u3044\u9818\u57df\u3067\u3059\u3002BEC\u306e\u3088\u3046\u306a\u653b\u6483\u306b\u5099\u3048\u308b\u306b\u306f\u3001\u60c5\u30b7\u30b9\u81ea\u8eab\u304c\u57fa\u790e\u3092\u5b66\u3073\u7d9a\u3051\u308b\u3053\u3068\u3082\u6b20\u304b\u305b\u307e\u305b\u3093\u3002<\/p>\n<p><strong>\u60c5\u30b7\u30b9\u30ab\u30ec\u30c3\u30b8\u306f\u3001\u65b0\u4eba\u30fb\u3072\u3068\u308a\u60c5\u30b7\u30b9\u306e\u305f\u3081\u306e\u30de\u30a4\u30af\u30ed\u30e9\u30fc\u30cb\u30f3\u30b0LMS\u3067\u3059\u3002<\/strong>\u696d\u52d9\u306e\u5408\u9593\u306b\u3001\u5fc5\u8981\u306a\u77e5\u8b58\u3092\u5c11\u3057\u305a\u3064\u8eab\u306b\u3064\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n<div style=\"border:2px solid #2d4f8f;border-radius:8px;background:#f2f5fb;padding:14px 18px;margin:1.5em 0\">\n<p style=\"margin:0 0 8px;font-weight:700;color:#2d4f8f\">\u60c5\u30b7\u30b9\u30ab\u30ec\u30c3\u30b8\u306e\u7279\u5fb4<\/p>\n<ul style=\"margin:0;padding-left:20px\">\n<li>\u6570\u5206\u306e\u52d5\u753b\u3068\u5c0f\u30c6\u30b9\u30c8\u3067\u5b66\u3079\u307e\u3059<\/li>\n<li>\u5fc5\u4fee\u306e\u5272\u308a\u5f53\u3066\u30fb\u671f\u9650\u8a2d\u5b9a\u30fb\u9032\u6357\u30c0\u30c3\u30b7\u30e5\u30dc\u30fc\u30c9\u3092\u5229\u7528\u3067\u304d\u307e\u3059<\/li>\n<li>\u81ea\u793e\u30ab\u30ea\u30ad\u30e5\u30e9\u30e0\u306e\u7de8\u6210\u3068\u3001CSV\u3067\u306e\u6559\u80b2\u8a18\u9332\u306e\u51fa\u529b\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059<\/li>\n<\/ul>\n<\/div>\n<p>\u5c0e\u5165\u306f5\u540d\u304b\u3089\u3067\u3059\u3002\u8acb\u6c42\u66f8\u6255\u3044\u306b\u5bfe\u5fdc\u3057\u3066\u304a\u308a\u3001\u521d\u671f\u8a2d\u5b9a\u306f\u7d0410\u5206\u3067\u5b8c\u4e86\u3057\u307e\u3059\u3002<\/p>\n<p style=\"text-align:center;margin:1.8em 0\"><a href=\"https:\/\/www.josys-college.com\/\" target=\"_blank\" rel=\"noopener noreferrer\" style=\"display:inline-block;background:#2d4f8f;color:#fff;font-weight:700;padding:14px 36px;border-radius:6px;text-decoration:none\">\u60c5\u30b7\u30b9\u30ab\u30ec\u30c3\u30b8\u306e\u8a73\u7d30\u3092\u898b\u308b<\/a><\/p>\n<hr \/>\n<p>\u203b\u51fa\u5178<\/p>\n<ul>\n<li><a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/security\/10threats\/omgdg50000008fi8-att\/kaisetsu_2026_soshiki.pdf\">IPA\u300c\u60c5\u5831\u30bb\u30ad\u30e5\u30ea\u30c6\u30a310\u5927\u8105\u5a01 2026\u300d\u89e3\u8aac\u66f8\uff3b\u7d44\u7e54\u7de8\uff3d<\/a><\/li>\n<li><a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/archive\/files\/000081866.pdf\">IPA\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u300eBEC\u300f\u306b\u95a2\u3059\u308b\u4e8b\u4f8b\u3068\u6ce8\u610f\u559a\u8d77\uff08\u7b2c\u4e09\u5831\uff09\u300d<\/a><\/li>\n<li><a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.jpcert.or.jp\/research\/20200325_BEC-survey.pdf\">JPCERT\/CC\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306e\u5b9f\u614b\u8abf\u67fb\u5831\u544a\u66f8\u300d<\/a><\/li>\n<li><a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ic3.gov\/media\/2016\/160614.aspx\">FBI IC3\u300cBusiness E-mail Compromise: The 3.1 Billion Dollar Scam\u300d\uff082016\u5e746\u670814\u65e5\u516c\u8868\uff09<\/a><\/li>\n<li><a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ic3.gov\/media\/2019\/190910.aspx\">FBI IC3\u300cBusiness Email Compromise The $26 Billion Scam\u300d\uff082019\u5e749\u670810\u65e5\u516c\u8868\uff09<\/a><\/li>\n<li><a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ic3.gov\/PSA\/2024\/PSA240911\">FBI IC3\u300cBusiness Email Compromise: The $55 Billion Scam\u300d\uff082024\u5e749\u670811\u65e5\u516c\u8868\uff09<\/a><\/li>\n<li><a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ic3.gov\/AnnualReport\/Reports\/2025_IC3Report.pdf\">FBI IC3\u300c2025 IC3 Annual Report\u300d<\/a><\/li>\n<li><a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.ipa.go.jp\/security\/j-csip\/ug65p9000000nkvm-att\/fy23-q1-report.pdf\">IPA\u300c\u30b5\u30a4\u30d0\u30fc\u60c5\u5831\u5171\u6709\u30a4\u30cb\u30b7\u30a2\u30c6\u30a3\u30d6\uff08J-CSIP\uff09\u904b\u7528\u72b6\u6cc1\uff3b2023\u5e744\u6708\u301c6\u6708\uff3d\u300d<\/a><\/li>\n<li><a target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/www.npa.go.jp\/bureau\/cyber\/countermeasures\/bec.html\">\u8b66\u5bdf\u5e81\u300c\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\u306b\u6ce8\u610f\uff01\u300d<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u30d3\u30b8\u30cd\u30b9\u30e1\u30fc\u30eb\u8a50\u6b3a\uff08BEC\uff09\u3068\u306f\u3001\u53d6\u5f15\u5148\u3084\u7d4c\u55b6\u8005\u306b\u306a\u308a\u3059\u307e\u3057\u3066\u9001\u91d1\u3055\u305b\u308b\u8a50\u6b3a\u3067\u3059\u3002JPCERT\/CC\u306e2019\u5e74\u8abf\u67fb\u3067\u306f\u624b\u53e3\u306e\u7d0475%\u304c\u8acb\u6c42\u66f8\u306e\u507d\u88c5\u3067\u3057\u305f\u3002\u8a50\u79f0\u304c\u96c6\u4e2d\u3059\u308b\u30bf\u30a4\u30df\u30f3\u30b0\u3084\u88ab\u5bb3\u984d\u306e\u5b9f\u4f8b\u3092\u516c\u7684\u30c7\u30fc\u30bf\u3067\u6574\u7406\u3057\u3001\u60c5\u30b7\u30b9\u304c\u6574\u3048\u308b\u3079\u304d\u5bfe\u7b56\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":10295,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[15],"tags":[],"class_list":["post-10294","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-security"],"jetpack_featured_media_url":"https:\/\/venu-sys.co.jp\/jo-sys\/wp-content\/uploads\/sites\/2\/2026\/09\/eyecatch-12.png","_links":{"self":[{"href":"https:\/\/venu-sys.co.jp\/jo-sys\/wp-json\/wp\/v2\/posts\/10294","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/venu-sys.co.jp\/jo-sys\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/venu-sys.co.jp\/jo-sys\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/venu-sys.co.jp\/jo-sys\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/venu-sys.co.jp\/jo-sys\/wp-json\/wp\/v2\/comments?post=10294"}],"version-history":[{"count":1,"href":"https:\/\/venu-sys.co.jp\/jo-sys\/wp-json\/wp\/v2\/posts\/10294\/revisions"}],"predecessor-version":[{"id":10296,"href":"https:\/\/venu-sys.co.jp\/jo-sys\/wp-json\/wp\/v2\/posts\/10294\/revisions\/10296"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/venu-sys.co.jp\/jo-sys\/wp-json\/wp\/v2\/media\/10295"}],"wp:attachment":[{"href":"https:\/\/venu-sys.co.jp\/jo-sys\/wp-json\/wp\/v2\/media?parent=10294"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/venu-sys.co.jp\/jo-sys\/wp-json\/wp\/v2\/categories?post=10294"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/venu-sys.co.jp\/jo-sys\/wp-json\/wp\/v2\/tags?post=10294"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}