{"id":569,"date":"2026-04-21T16:42:48","date_gmt":"2026-04-21T07:42:48","guid":{"rendered":"https:\/\/okuru-link.com\/info\/?p=569"},"modified":"2026-04-06T16:42:29","modified_gmt":"2026-04-06T07:42:29","slug":"security-intrusion-detection","status":"publish","type":"post","link":"https:\/\/okuru-link.com\/info\/blog\/usecase\/security-intrusion-detection\/","title":{"rendered":"\u30d5\u30a1\u30a4\u30eb\u8ee2\u9001\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u4ed5\u7d44\u307f"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u30d5\u30a1\u30a4\u30eb\u8ee2\u9001\u30b5\u30fc\u30d3\u30b9\u3092\u4f7f\u3046\u969b\u3001\u300c\u3053\u306e\u30b5\u30fc\u30d3\u30b9\u3001\u672c\u5f53\u306b\u5b89\u5168\u306a\u306e\u304b\uff1f\u300d\u3068\u4e0d\u5b89\u306b\u601d\u3063\u305f\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304b\u3002\u5927\u4e8b\u306a\u30d5\u30a1\u30a4\u30eb\u3092\u9001\u308b\u304b\u3089\u3053\u305d\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u9762\u306f\u7279\u306b\u6c17\u306b\u306a\u308b\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30d5\u30a1\u30a4\u30eb\u8ee2\u9001\u30b5\u30fc\u30d3\u30b9\u306b\u3069\u306e\u3088\u3046\u306a\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u306e\u30ea\u30b9\u30af\u304c\u3042\u308b\u306e\u304b\u3001\u305d\u3057\u3066\u305d\u308c\u306b\u5bfe\u3057\u3066\u3069\u306e\u3088\u3046\u306a\u5bfe\u7b56\u304c\u53d6\u3089\u308c\u3066\u3044\u308b\u306e\u304b\u3092\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"okl-h2-spacer wp-block-paragraph\">&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading okl-h2\"><strong>\u30d5\u30a1\u30a4\u30eb\u8ee2\u9001\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3068\u306f<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#d97706\" class=\"has-inline-color\">\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u653b\u6483<\/mark><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u30d6\u30eb\u30fc\u30c8\u30d5\u30a9\u30fc\u30b9\u653b\u6483\u300d\u3068\u306f\u3001\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u6a5f\u68b0\u7684\u306b\u5927\u91cf\u306b\u8a66\u3057\u3066\u30ed\u30b0\u30a4\u30f3\u3092\u8a66\u307f\u308b\u624b\u6cd5\u3067\u3059\u3002\u5358\u7d14\u306a\u30d1\u30b9\u30ef\u30fc\u30c9\u3084\u3001\u4ed6\u306e\u30b5\u30fc\u30d3\u30b9\u3067\u4f7f\u3044\u56de\u3057\u3066\u3044\u308b\u30d1\u30b9\u30ef\u30fc\u30c9\u306f\u72d9\u308f\u308c\u3084\u3059\u3044\u50be\u5411\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#d97706\" class=\"has-inline-color\">Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u306e\u8106\u5f31\u6027\u3092\u72d9\u3046\u653b\u6483<\/mark><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b5\u30fc\u30d3\u30b9\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u5f31\u70b9\u3092\u7a81\u304d\u3001\u4e0d\u6b63\u306a\u64cd\u4f5c\u3092\u5b9f\u884c\u3055\u305b\u3088\u3046\u3068\u3059\u308b\u653b\u6483\u3067\u3059\u3002Web\u30b5\u30fc\u30d3\u30b9\u306f\u4e0d\u7279\u5b9a\u591a\u6570\u304b\u3089\u30a2\u30af\u30bb\u30b9\u3055\u308c\u308b\u305f\u3081\u3001\u3053\u306e\u30ea\u30b9\u30af\u306b\u5e38\u306b\u3055\u3089\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#d97706\" class=\"has-inline-color\">\u306a\u308a\u3059\u307e\u3057\u3084\u4e0d\u6b63\u306a\u30ea\u30af\u30a8\u30b9\u30c8\u306b\u3088\u308b\u64cd\u4f5c<\/mark><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b63\u898f\u306e\u30e6\u30fc\u30b6\u30fc\u306b\u306a\u308a\u3059\u307e\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u610f\u56f3\u3057\u306a\u3044\u64cd\u4f5c\u3092\u5b9f\u884c\u3055\u305b\u308b\u653b\u6483\u3082\u3042\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u30ed\u30b0\u30a4\u30f3\u4e2d\u306e\u30e6\u30fc\u30b6\u30fc\u304c\u60aa\u610f\u306e\u3042\u308b\u30ea\u30f3\u30af\u3092\u30af\u30ea\u30c3\u30af\u3059\u308b\u3060\u3051\u3067\u3001\u672c\u4eba\u304c\u6c17\u3065\u304b\u306a\u3044\u3046\u3061\u306b\u30c7\u30fc\u30bf\u304c\u64cd\u4f5c\u3055\u308c\u3066\u3057\u307e\u3046\u30b1\u30fc\u30b9\u3067\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"okl-h2-spacer wp-block-paragraph\">&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading okl-h2\"><strong>\u78ba\u8a8d\u3057\u3066\u304a\u304d\u305f\u3044\u30dd\u30a4\u30f3\u30c8<strong>\uff08\u4e00\u4f8b\uff09<\/strong><\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b5\u30fc\u30d3\u30b9\u3092\u9078\u3076\u969b\u306b\u78ba\u8a8d\u3057\u3066\u304a\u304d\u305f\u3044\u5404\u30dd\u30a4\u30f3\u30c8\u306f\u3001\u30b5\u30fc\u30d3\u30b9\u306e\u516c\u5f0f\u30b5\u30a4\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30da\u30fc\u30b8\u30fb\u6a5f\u80fd\u4e00\u89a7\u30fbFAQ \u306a\u3069\u3067\u78ba\u8a8d\u3067\u304d\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u660e\u8a18\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u554f\u3044\u5408\u308f\u305b\u7a93\u53e3\u306b\u76f4\u63a5\u78ba\u8a8d\u3059\u308b\u306e\u304c\u78ba\u5b9f\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading okl-point-h3\">1. \u4e0d\u6b63\u4fb5\u5165\u691c\u77e5\u30b7\u30b9\u30c6\u30e0\u3092\u5099\u3048\u3066\u3044\u308b\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e0d\u6b63\u306a\u30a2\u30af\u30bb\u30b9\u3092\u30ea\u30a2\u30eb\u30bf\u30a4\u30e0\u3067\u691c\u77e5\u3059\u308b\u4ed5\u7d44\u307f\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u901a\u5e38\u3068\u306f\u7570\u306a\u308b\u30a2\u30af\u30bb\u30b9\u30d1\u30bf\u30fc\u30f3\u3084\u653b\u6483\u306e\u5146\u5019\u3092\u691c\u77e5\u30fb\u5bfe\u5fdc\u3067\u304d\u308b\u4f53\u5236\u304c\u3042\u308b\u30b5\u30fc\u30d3\u30b9\u304b\u3069\u3046\u304b\u304c\u3001\u5b89\u5168\u6027\u306e\u76ee\u5b89\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading okl-point-h3\">2. WAF\uff08Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\uff09\u304c\u5c0e\u5165\u3055\u308c\u3066\u3044\u308b\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">WAF\u3068\u306f\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3078\u306e\u653b\u6483\u3092\u691c\u77e5\u30fb\u906e\u65ad\u3059\u308b\u305f\u3081\u306e\u5c02\u7528\u306e\u9632\u5fa1\u306e\u4ed5\u7d44\u307f\u3067\u3059\u3002\u4e00\u822c\u7684\u306a\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u3068\u306f\u7570\u306a\u308a\u3001Web\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u7279\u6709\u306e\u653b\u6483\u30d1\u30bf\u30fc\u30f3\u306b\u3082\u5bfe\u5fdc\u3057\u3066\u3044\u307e\u3059\u3002\u5c0e\u5165\u3055\u308c\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u30b5\u30fc\u30d3\u30b9\u306e\u4ed5\u69d8\u30da\u30fc\u30b8\u3067\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading okl-point-h3\">3. \u8a8d\u8a3c\u5931\u6557\u306b\u3088\u308b\u30a2\u30ab\u30a6\u30f3\u30c8\u30ed\u30c3\u30af\u304c\u3042\u308b\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u7e70\u308a\u8fd4\u3057\u9593\u9055\u3048\u305f\u5834\u5408\u306b\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u304c\u4e00\u6642\u7684\u306b\u30ed\u30c3\u30af\u3055\u308c\u308b\u4ed5\u7d44\u307f\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3082\u78ba\u8a8d\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002\u3053\u306e\u4ed5\u7d44\u307f\u304c\u306a\u3044\u3068\u3001\u6a5f\u68b0\u7684\u306b\u30d1\u30b9\u30ef\u30fc\u30c9\u3092\u8a66\u3057\u7d9a\u3051\u308b\u653b\u6483\u306b\u5bfe\u3057\u3066\u7121\u9632\u5099\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading okl-point-h3\">4. \u4e8c\u6bb5\u968e\u8a8d\u8a3c\uff08\u30ef\u30f3\u30bf\u30a4\u30e0\u30d1\u30b9\u30ef\u30fc\u30c9\uff09\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d1\u30b9\u30ef\u30fc\u30c9\u306b\u52a0\u3048\u3066\u3001\u30ef\u30f3\u30bf\u30a4\u30e0\u30d1\u30b9\u30ef\u30fc\u30c9\uff08OTP\uff09\u306a\u3069\u306b\u3088\u308b\u4e8c\u6bb5\u968e\u8a8d\u8a3c\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u30d1\u30b9\u30ef\u30fc\u30c9\u304c\u6d41\u51fa\u3057\u305f\u5834\u5408\u3067\u3082\u3001\u4e8c\u6bb5\u968e\u8a8d\u8a3c\u304c\u3042\u308c\u3070\u4e0d\u6b63\u30ed\u30b0\u30a4\u30f3\u306e\u30ea\u30b9\u30af\u3092\u5927\u304d\u304f\u4e0b\u3052\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading okl-point-h3\">5. CSRF\u5bfe\u7b56\u306a\u3069\u3001\u610f\u56f3\u3057\u306a\u3044\u64cd\u4f5c\u3092\u9632\u3050\u4ed5\u7d44\u307f\u304c\u3042\u308b\u304b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u306a\u308a\u3059\u307e\u3057\u3084\u610f\u56f3\u3057\u306a\u3044\u64cd\u4f5c\u3092\u9632\u3050\u305f\u3081\u306e\u5bfe\u7b56\uff08CSRF\u5bfe\u7b56\uff09\u304c\u5b9f\u65bd\u3055\u308c\u3066\u3044\u308b\u304b\u3082\u3001\u78ba\u8a8d\u3057\u3066\u304a\u304d\u305f\u3044\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002\u516c\u5f0f\u30b5\u30a4\u30c8\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u30da\u30fc\u30b8\u3084\u3001\u554f\u3044\u5408\u308f\u305b\u3067\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"okl-h2-spacer wp-block-paragraph\">&nbsp;<\/p>\n\n\n\n<h2 class=\"wp-block-heading okl-h2\"><strong>\u3088\u304f\u3042\u308b\u8cea\u554f<\/strong><\/h2>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Q. URL\u304c\u6d41\u51fa\u3057\u305f\u5834\u5408\u3001\u30d5\u30a1\u30a4\u30eb\u306f\u898b\u3089\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u304b\uff1f<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d1\u30b9\u30ef\u30fc\u30c9\u3084\u8a8d\u8a3c\u30b3\u30fc\u30c9\uff08\u30ef\u30f3\u30bf\u30a4\u30e0\u30d1\u30b9\u30ef\u30fc\u30c9\uff09\u3092\u8a2d\u5b9a\u3057\u3066\u3044\u308c\u3070\u3001URL\u3092\u77e5\u3063\u3066\u3044\u3066\u3082\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u306f\u3067\u304d\u307e\u305b\u3093\u3002URL\u3060\u3051\u3067\u306a\u304f\u8a8d\u8a3c\u306e\u8a2d\u5b9a\u3082\u5408\u308f\u305b\u3066\u884c\u3046\u3053\u3068\u3067\u3001\u3088\u308a\u5b89\u5168\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u5c4a\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\"><strong>Q. 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