{"id":949,"date":"2026-02-20T16:00:00","date_gmt":"2026-02-20T07:00:00","guid":{"rendered":"https:\/\/www.mpca.or.jp\/devices\/verified\/?p=949"},"modified":"2026-03-12T15:15:58","modified_gmt":"2026-03-12T06:15:58","slug":"wifi-security-basics","status":"publish","type":"post","link":"https:\/\/www.mpca.or.jp\/devices\/verified\/2026\/02\/20\/wifi-security-basics\/","title":{"rendered":"\u81ea\u5b85Wi-Fi\u304c\u201c\u653b\u6483\u306e\u8e0f\u307f\u53f0\u201d\u306b\u306a\u308b\u53ef\u80fd\u6027\u3082\uff5c\u901a\u4fe1\u4e8b\u696d\u8005\u3068\u5229\u7528\u8005\u304c\u77e5\u308b\u3079\u304d\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56"},"content":{"rendered":"\n<!-- \u25bc \u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u8a18\u4e8b\uff08WordPress\u7528HTML\uff09 -->\n<style>\n\/* \u5168\u4f53 *\/\n.mpca-container {\n  font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Hiragino Kaku Gothic ProN\", \"Yu Gothic\", Meiryo, sans-serif;\n  line-height: 1.8;\n  color: #333;\n}\n\n\/* \u30bf\u30a4\u30c8\u30eb *\/\n.mpca-title {\n  font-size: 28px;\n  font-weight: 700;\n  margin-bottom: 10px;\n}\n\n.mpca-lead {\n  font-size: 16px;\n  background: #f7f9fc;\n  padding: 18px;\n  border-radius: 10px;\n  margin-bottom: 25px;\n}\n\n\/* 5W2H\u56f2\u307f\u67a0 *\/\n.mpca-5w2h-box {\n  border: 2px solid #2b6cb0;\n  border-radius: 12px;\n  padding: 20px;\n  background: #f0f6ff;\n  margin-bottom: 30px;\n}\n\n.mpca-5w2h-title {\n  font-weight: bold;\n  font-size: 20px;\n  margin-bottom: 15px;\n}\n\n\/* \u30ab\u30fc\u30c9 *\/\n.mpca-card-grid {\n  display: grid;\n  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));\n  gap: 15px;\n}\n\n.mpca-card {\n  background: #ffffff;\n  border-radius: 10px;\n  padding: 15px;\n  border: 1px solid #d9e2ec;\n  box-shadow: 0 2px 6px rgba(0,0,0,0.05);\n}\n\n.mpca-card-title {\n  font-weight: bold;\n  margin-bottom: 5px;\n  color: #2b6cb0;\n}\n\n\/* \u898b\u51fa\u3057 *\/\n.mpca-h2 {\n  font-size: 22px;\n  margin-top: 35px;\n  margin-bottom: 10px;\n  border-left: 5px solid #2b6cb0;\n  padding-left: 10px;\n}\n\n.mpca-h3 {\n  font-size: 18px;\n  margin-top: 20px;\n}\n\n\/* \u30c1\u30a7\u30c3\u30af\u30ea\u30b9\u30c8 *\/\n.mpca-check {\n  background: #f7fafc;\n  border-radius: 10px;\n  padding: 15px;\n  margin: 15px 0;\n}\n\n.mpca-check ul {\n  margin: 0;\n  padding-left: 20px;\n}\n\n\/* \u307e\u3068\u3081\u30dc\u30c3\u30af\u30b9 *\/\n.mpca-summary {\n  background: #edf7ed;\n  border: 2px solid #38a169;\n  border-radius: 12px;\n  padding: 20px;\n  margin-top: 30px;\n}\n<\/style>\n\n<div class=\"mpca-container\">\n\n<h1 class=\"mpca-title\">\u81ea\u5b85Wi-Fi\u304c\u201c\u653b\u6483\u306e\u8e0f\u307f\u53f0\u201d\u306b\u306a\u308b\u53ef\u80fd\u6027\u3082\uff5c\u901a\u4fe1\u4e8b\u696d\u8005\u3068\u5229\u7528\u8005\u304c\u77e5\u308b\u3079\u304d\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56<\/h1>\n\n<div class=\"mpca-lead\">\n\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306f\u3001\u751f\u6d3b\u3084\u4ed5\u4e8b\u306b\u6b20\u304b\u305b\u306a\u3044\u91cd\u8981\u306a\u30a4\u30f3\u30d5\u30e9\u3067\u3059\u3002<br>\n\u3057\u304b\u3057\u8fd1\u5e74\u3001\u81ea\u5b85\u3084\u5e97\u8217\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u308bWi-Fi\u30eb\u30fc\u30bf\u30fc\u304c\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306b\u60aa\u7528\u3055\u308c\u308b\u30b1\u30fc\u30b9\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002<br><br>\n\n\u5bfe\u7b56\u3092\u3057\u3066\u3044\u306a\u3044\u6a5f\u5668\u306f\u3001\u77e5\u3089\u306a\u3044\u3046\u3061\u306b\u4e57\u3063\u53d6\u3089\u308c\u3001\u4ed6\u306e\u30b5\u30fc\u30d3\u30b9\u3078\u306e\u653b\u6483\u306b\u5229\u7528\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<br>\n\u5b89\u5168\u306a\u901a\u4fe1\u74b0\u5883\u3092\u7dad\u6301\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u30e6\u30fc\u30b6\u30fc\u3055\u307e\u3060\u3051\u3067\u306a\u304f\u901a\u4fe1\u4e8b\u696d\u8005\u3055\u307e\u5074\u306e\u7406\u89e3\u3068\u6848\u5185\u3082\u91cd\u8981\u3067\u3059\u3002\n<\/div>\n<hr>\n\n<!-- \u25bc 5W2H -->\n<div class=\"mpca-5w2h-box\">\n\n<div class=\"mpca-5w2h-title\">&#x1f4cc; \u307e\u305a\u77e5\u3063\u3066\u304a\u304d\u305f\u3044\u30dd\u30a4\u30f3\u30c8<\/div>\n\n<div class=\"mpca-card-grid\">\n\n<div class=\"mpca-card\">\n<div class=\"mpca-card-title\">&#x1f50d; What\uff08\u4f55\u304c\u8d77\u304d\u3066\u3044\u308b\uff1f\uff09<\/div>\nWi-Fi\u30eb\u30fc\u30bf\u30fc\u304c\u4e57\u3063\u53d6\u3089\u308c\u3001\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306b\u60aa\u7528\u3055\u308c\u308b\u30b1\u30fc\u30b9\u304c\u5897\u3048\u3066\u3044\u307e\u3059\u3002\n<\/div>\n\n<div class=\"mpca-card\">\n<div class=\"mpca-card-title\">&#x1f4c5; When\uff08\u3044\u3064\u8d77\u304d\u308b\uff1f\uff09<\/div>\n\u30d1\u30b9\u30ef\u30fc\u30c9\u672a\u5909\u66f4\u3084\u66f4\u65b0\u3057\u3066\u3044\u306a\u3044\u72b6\u614b\u304c\u7d9a\u304f\u3068\u3001\u5e38\u306b\u30ea\u30b9\u30af\u304c\u3042\u308a\u307e\u3059\u3002\n<\/div>\n\n<div class=\"mpca-card\">\n<div class=\"mpca-card-title\">&#x1f3e0; Where\uff08\u3069\u3053\u3067\u8d77\u304d\u308b\uff1f\uff09<\/div>\n\u81ea\u5b85\u30fb\u5e97\u8217\u30fb\u4e8b\u52d9\u6240\u306a\u3069\u3001Wi-Fi\u30eb\u30fc\u30bf\u30fc\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u74b0\u5883\u3067\u3059\u3002\n<\/div>\n\n<div class=\"mpca-card\">\n<div class=\"mpca-card-title\">&#x2753; Why\uff08\u306a\u305c\u8d77\u304d\u308b\uff1f\uff09<\/div>\n\u30fb\u521d\u671f\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u307e\u307e\u4f7f\u7528<br>\n\u30fb\u53e4\u3044\u6a5f\u5668\u306e\u4f7f\u7528<br>\n\u30fb\u66f4\u65b0\u3092\u3057\u3066\u3044\u306a\u3044\n<\/div>\n\n<div class=\"mpca-card\">\n<div class=\"mpca-card-title\">&#x2699; How\uff08\u3069\u306e\u3088\u3046\u306b\u8d77\u304d\u308b\uff1f\uff09<\/div>\n\u653b\u6483\u8005\u304c\u6a5f\u5668\u306e\u5f31\u70b9\u306b\u4fb5\u5165\u3057\u3001\u9060\u9694\u64cd\u4f5c\u3067\u304d\u308b\u72b6\u614b\u306b\u3057\u307e\u3059\u3002\n<\/div>\n\n<div class=\"mpca-card\">\n<div class=\"mpca-card-title\">&#x26a0; \u5f71\u97ff\u306f\uff1f<\/div>\n\u30fb\u901a\u4fe1\u30c8\u30e9\u30d6\u30eb<br>\n\u30fb\u60c5\u5831\u6f0f\u3048\u3044\u30ea\u30b9\u30af<br>\n\u30fb\u4ed6\u3078\u306e\u653b\u6483\u306b\u5229\u7528\u3055\u308c\u308b\u53ef\u80fd\u6027\n<\/div>\n\n<\/div>\n<\/div>\n<hr>\n\n<h2 class=\"mpca-h2\">\u306a\u305cWi-Fi\u30eb\u30fc\u30bf\u30fc\u304c\u72d9\u308f\u308c\u308b\u306e\u304b<\/h2>\n\n\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u4e0a\u3067\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u304c\u4e0d\u5341\u5206\u306a\u6a5f\u5668\u304c\u5e38\u306b\u63a2\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br><br>\n\n\u7279\u306b\u4ee5\u4e0b\u306e\u72b6\u614b\u306f\u5371\u967a\u3067\u3059\uff1a\n\n<div class=\"mpca-check\">\n<ul style=\"list-style: none; padding-left: 0; margin-left: 0;\">\n<li>&#x274c; \u521d\u671f\u30d1\u30b9\u30ef\u30fc\u30c9\u306e\u307e\u307e\u4f7f\u7528<\/li>\n<li>&#x274c; \u9577\u671f\u9593\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044<\/li>\n<li>&#x274c; \u53e4\u3044\u6a5f\u5668\u3092\u4f7f\u3044\u7d9a\u3051\u3066\u3044\u308b<\/li>\n<\/ul>\n<\/div>\n\n\u3053\u306e\u3088\u3046\u306a\u6a5f\u5668\u306f\u300c\u30dc\u30c3\u30c8\u300d\u3068\u3057\u3066\u4e57\u3063\u53d6\u3089\u308c\u3001\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u306b\u5229\u7528\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\n<hr>\n\n<h2 class=\"mpca-h2\">\u901a\u4fe1\u4e8b\u696d\u8005\u306b\u3068\u3063\u3066\u3082\u91cd\u8981\u306a\u554f\u984c\u3067\u3059<\/h2>\n\n\u901a\u4fe1\u4e8b\u696d\u8005\u3055\u307e\u306b\u3068\u3063\u3066\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u306f\u9867\u5ba2\u6e80\u8db3\u5ea6\u3068\u4fe1\u983c\u6027\u306b\u76f4\u7d50\u3057\u307e\u3059\u3002\n\n<div class=\"mpca-check\">\n<ul style=\"list-style: none; 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