{"id":4642,"date":"2024-10-11T08:36:43","date_gmt":"2024-10-11T08:36:43","guid":{"rendered":"https:\/\/howtogeek.blog\/ja\/?p=4642"},"modified":"2024-10-11T08:36:43","modified_gmt":"2024-10-11T08:36:43","slug":"understanding-the-risks-of-public-wifi-and-how-to-safeguard-yourself-while-connecting","status":"publish","type":"post","link":"https:\/\/howtogeek.blog\/ja\/understanding-the-risks-of-public-wifi-and-how-to-safeguard-yourself-while-connecting\/","title":{"rendered":"\u516c\u8846Wi-Fi\u306e\u30ea\u30b9\u30af\u3092\u7406\u89e3\u3057\u3001\u63a5\u7d9a\u4e2d\u306b\u81ea\u5206\u81ea\u8eab\u3092\u5b88\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>\u516c\u8846 Wi-Fi \u306f\u3001\u7a7a\u6e2f\u3001\u30ab\u30d5\u30a7\u3001\u30db\u30c6\u30eb\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u5834\u6240\u3067\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3067\u304d\u308b\u3001\u6bd4\u985e\u306e\u306a\u3044\u5229\u4fbf\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u308c\u3089\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30c7\u30d0\u30a4\u30b9\u304c\u3055\u307e\u3056\u307e\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u8105\u5a01\u306b\u3055\u3089\u3055\u308c\u3001\u30cf\u30c3\u30ad\u30f3\u30b0\u304c\u5927\u304d\u306a\u61f8\u5ff5\u4e8b\u9805\u3068\u306a\u308a\u307e\u3059\u3002\u516c\u8846 Wi-Fi \u306b\u306f\u5f37\u529b\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u306a\u3044\u305f\u3081\u3001\u30b5\u30a4\u30d0\u30fc\u72af\u7f6a\u8005\u304c\u63a5\u7d9a\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u306b\u4fb5\u5165\u3059\u308b\u306e\u306f\u7c21\u5358\u3067\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u60aa\u610f\u306e\u3042\u308b\u653b\u6483\u8005\u306f\u3053\u308c\u3089\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u60aa\u7528\u3057\u3066\u3001\u4e2d\u9593\u8005 (MITM) \u653b\u6483\u3001\u30bb\u30c3\u30b7\u30e7\u30f3 \u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u3001\u30d1\u30b1\u30c3\u30c8 \u30b9\u30cb\u30c3\u30d5\u30a3\u30f3\u30b0\u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u624b\u6cd5\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002<\/p>\n<h2 id=\"common-attacks\">\u4e00\u822c\u7684\u306a\u30b5\u30a4\u30d0\u30fc\u653b\u6483<\/h2>\n<p>\u4ee5\u4e0b\u306f\u3001\u516c\u5171\u306e Wi-Fi \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u30e6\u30fc\u30b6\u30fc\u3092\u6a19\u7684\u3068\u3059\u308b\u4e00\u822c\u7684\u306a\u30b5\u30a4\u30d0\u30fc\u8105\u5a01\u306e\u4e00\u90e8\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u4e2d\u9593\u8005 (MITM) \u653b\u6483:<\/strong> MITM \u653b\u6483\u3067\u306f\u3001\u653b\u6483\u8005\u304c\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u3068\u30e6\u30fc\u30b6\u30fc\u304c\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3044\u308b Web \u30b5\u30a4\u30c8\u9593\u306e\u901a\u4fe1\u3092\u5bc6\u304b\u306b\u508d\u53d7\u3057\u3001\u6a5f\u5bc6\u30c7\u30fc\u30bf\u3092\u76d7\u3093\u3060\u308a\u5909\u66f4\u3057\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fdd\u8b77\u3055\u308c\u3066\u3044\u306a\u3044 Wi-Fi \u63a5\u7d9a\u3067\u6700\u3082\u983b\u7e41\u306b\u767a\u751f\u3059\u308b\u653b\u6483\u306e 1 \u3064\u3067\u3059\u3002<\/li>\n<li><strong>\u507d\u306e\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u307e\u305f\u306f\u60aa\u9b54\u306e\u53cc\u5b50\u653b\u6483:<\/strong>\u3053\u306e\u30bf\u30a4\u30d7\u306e\u653b\u6483\u306f\u3001\u30cf\u30c3\u30ab\u30fc\u304c\u6b63\u898f\u306e\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u3092\u6a21\u5023\u3057\u305f\u4e0d\u6b63\u306a\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u3092\u4f5c\u6210\u3057\u305f\u5834\u5408\u306b\u767a\u751f\u3057\u307e\u3059\u3002\u30e6\u30fc\u30b6\u30fc\u304c\u3053\u306e\u507d\u306e\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u306b\u63a5\u7d9a\u3059\u308b\u3068\u3001\u653b\u6483\u8005\u306f\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30fc\u30bf\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u88ab\u5bb3\u8005\u306b\u77e5\u3089\u308c\u308b\u3053\u3068\u306a\u304f\u305d\u306e\u30c7\u30fc\u30bf\u3092\u60aa\u7528\u3067\u304d\u307e\u3059\u3002<\/li>\n<li><strong>\u30d1\u30b1\u30c3\u30c8 \u30b9\u30cb\u30c3\u30d5\u30a3\u30f3\u30b0:<\/strong>\u30d1\u30b1\u30c3\u30c8 \u30b9\u30cb\u30c3\u30d5\u30a3\u30f3\u30b0\u306f\u3059\u3050\u306b\u640d\u5bb3\u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u653b\u6483\u8005\u306f\u30aa\u30fc\u30d7\u30f3 Wi-Fi \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u7531\u3067\u9001\u4fe1\u3055\u308c\u308b\u30c7\u30fc\u30bf\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u3066\u5206\u6790\u3067\u304d\u307e\u3059\u3002HTTPS \u306b\u3088\u3063\u3066\u3053\u306e\u3088\u3046\u306a\u653b\u6483\u306e\u52b9\u679c\u306f\u4f4e\u4e0b\u3057\u307e\u3057\u305f\u304c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fdd\u8b77\u3055\u308c\u3066\u3044\u306a\u3044 Web \u30b5\u30a4\u30c8\u7d4c\u7531\u3067\u60c5\u5831\u304c\u9001\u4fe1\u3055\u308c\u308b\u3068\u3001\u60c5\u5831\u304c\u6f0f\u6d29\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u30bb\u30c3\u30b7\u30e7\u30f3 \u30cf\u30a4\u30b8\u30e3\u30c3\u30af:<\/strong>\u30cf\u30c3\u30ab\u30fc\u306f\u30bb\u30c3\u30b7\u30e7\u30f3 \u30af\u30c3\u30ad\u30fc\u3092\u76d7\u307f\u3001\u30ed\u30b0\u30a4\u30f3\u8a8d\u8a3c\u60c5\u5831\u306a\u3057\u3067\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u30bf\u30a4\u30d7\u306e\u653b\u6483\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fdd\u8b77\u3055\u308c\u3066\u3044\u306a\u3044 Wi-Fi \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u7279\u306b\u3088\u304f\u898b\u3089\u308c\u307e\u3059\u3002<\/li>\n<li><strong>\u30de\u30eb\u30a6\u30a7\u30a2\u306e\u6ce8\u5165:<\/strong>\u516c\u5171\u306e Wi-Fi \u306b\u63a5\u7d9a\u3059\u308b\u3068\u3001\u30c7\u30d0\u30a4\u30b9\u304c\u30de\u30eb\u30a6\u30a7\u30a2\u306b\u611f\u67d3\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002\u30b5\u30a4\u30d0\u30fc\u72af\u7f6a\u8005\u306f\u30c7\u30d0\u30a4\u30b9\u306e\u8106\u5f31\u6027\u3092\u60aa\u7528\u3057\u3066\u6709\u5bb3\u306a\u30bd\u30d5\u30c8\u30a6\u30a7\u30a2\u3092\u30a4\u30f3\u30b9\u30c8\u30fc\u30eb\u3057\u3001\u30e6\u30fc\u30b6\u30fc\u306e\u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u3092\u8ffd\u8de1\u3057\u3066\u3001\u30e6\u30fc\u30b6\u30fc\u304c\u6c17\u4ed8\u304b\u306a\u3044\u3046\u3061\u306b\u6a5f\u5bc6\u60c5\u5831\u3092\u76d7\u3080\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2 id=\"keeping-yourself-safe-on-public-wi-fi\">\u516c\u5171Wi-Fi\u3067\u5b89\u5168\u3092\u78ba\u4fdd\u3059\u308b<\/h2>\n<p>\u516c\u5171\u306e Wi-Fi \u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u7279\u5b9a\u306e\u4e88\u9632\u63aa\u7f6e\u3092\u8b1b\u3058\u308b\u3053\u3068\u3067\u3001\u3055\u307e\u3056\u307e\u306a\u30b5\u30a4\u30d0\u30fc\u8105\u5a01\u304b\u3089\u8eab\u3092\u5b88\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u8003\u616e\u3059\u3079\u304d\u6226\u7565\u3092\u3044\u304f\u3064\u304b\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"1-use-a-vpn\">1. VPN\u3092\u6d3b\u7528\u3059\u308b<\/h3>\n<p>\u4eee\u60f3\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8 \u30cd\u30c3\u30c8\u30ef\u30fc\u30af (VPN) \u306f\u5b89\u5168\u306a\u30c8\u30f3\u30cd\u30eb\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u30aa\u30f3\u30e9\u30a4\u30f3\u3067\u306e\u95b2\u89a7\u4e2d\u306b IP \u30a2\u30c9\u30ec\u30b9\u3092\u96a0\u3057\u3001\u30c7\u30fc\u30bf\u3092\u6697\u53f7\u5316\u3057\u307e\u3059\u3002\u3053\u308c\u306b\u3088\u308a\u3001VPN \u306f\u30cf\u30c3\u30ab\u30fc\u304c\u60c5\u5831\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u30ea\u30b9\u30af\u3092\u5927\u5e45\u306b\u8efd\u6e1b\u3057\u307e\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u3092\u30b5\u30a4\u30d0\u30fc\u8105\u5a01\u304b\u3089\u4fdd\u8b77\u3059\u308b\u306b\u306f\u3001\u7121\u6599\u307e\u305f\u306f\u30b5\u30d6\u30b9\u30af\u30ea\u30d7\u30b7\u30e7\u30f3 \u30d9\u30fc\u30b9\u306e VPN \u30b5\u30fc\u30d3\u30b9\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3 id=\"2-connect-to-secure-websites-only\">2. \u5b89\u5168\u306a\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u306e\u307f\u3092\u4f7f\u7528\u3059\u308b<\/h3>\n<p>\u30a6\u30a7\u30d6\u30a2\u30c9\u30ec\u30b9\u306b HTTPS \u304c\u3042\u308a\u3001\u30d6\u30e9\u30a6\u30b6\u306e\u30a2\u30c9\u30ec\u30b9\u30d0\u30fc\u306b\u5357\u4eac\u9320\u30a2\u30a4\u30b3\u30f3\u304c\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u306f\u5b89\u5168\u306a\u63a5\u7d9a\u3067\u3042\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002HTTPS \u306e\u306a\u3044\u30b5\u30a4\u30c8\u306f\u30c7\u30fc\u30bf\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u3092\u5371\u967a\u306b\u3055\u3089\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001\u907f\u3051\u3066\u304f\u3060\u3055\u3044\u3002\u983b\u7e41\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u30b5\u30a4\u30c8\u3067\u300c\u5e38\u306b HTTPS \u3092\u4f7f\u7528\u3059\u308b\u300d\u6a5f\u80fd\u3092\u6709\u52b9\u306b\u3059\u308b\u3068\u3001\u30aa\u30f3\u30e9\u30a4\u30f3 \u30a2\u30af\u30c6\u30a3\u30d3\u30c6\u30a3\u4e2d\u306e\u5b89\u5168\u6027\u3082\u5411\u4e0a\u3057\u307e\u3059\u3002<\/p>\n<h3 id=\"3-turn-off-automatic-connections\">3. \u81ea\u52d5\u63a5\u7d9a\u3092\u7121\u52b9\u306b\u3059\u308b<\/h3>\n<p>\u81ea\u52d5\u63a5\u7d9a\u306f\u4fbf\u5229\u3067\u3059\u304c\u3001\u3088\u304f\u77e5\u3089\u306a\u3044\u516c\u8846 Wi-Fi \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b\u3068\u304d\u306b\u30ea\u30b9\u30af\u304c\u751f\u3058\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u304c\u60aa\u9b54\u306e\u53cc\u5b50\u653b\u6483\u306a\u3069\u306e\u8105\u5a01\u306b\u3055\u3089\u3055\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u304c\u65e2\u77e5\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u306e\u307f\u63a5\u7d9a\u3059\u308b\u3088\u3046\u306b\u8a2d\u5b9a\u3057\u3001\u516c\u8846\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u81ea\u52d5\u63a5\u7d9a\u3092\u7121\u52b9\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u63a5\u7d9a\u3059\u308b\u524d\u306b\u3001\u5fc5\u305a\u516c\u8846 Wi-Fi \u306e\u6b63\u5f53\u6027\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 id=\"4-avoid-sensitive-transactions-and-sharing-personal-information\">4. \u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u53d6\u5f15\u3084\u500b\u4eba\u60c5\u5831\u306e\u5171\u6709\u306f\u63a7\u3048\u308b<\/h3>\n<p>\u91d1\u878d\u53d6\u5f15\u3092\u884c\u3046\u969b\u306f\u3001\u5b89\u5168\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u5b89\u5168\u3067\u306a\u3044 Wi-Fi \u306b\u63a5\u7d9a\u3057\u3066\u3044\u308b\u9593\u306f\u3001\u9280\u884c\u53e3\u5ea7\u306e\u8a73\u7d30\u306a\u3069\u306e\u6a5f\u5bc6\u60c5\u5831\u3092\u5165\u529b\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u307e\u305f\u3001\u516c\u5171\u306e Wi-Fi \u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u9593\u306f\u3001\u793e\u4f1a\u4fdd\u969c\u756a\u53f7\u306a\u3069\u306e\u500b\u4eba\u60c5\u5831\u3092\u9001\u4fe1\u3057\u305f\u308a\u3001\u6a5f\u5bc6\u6027\u306e\u9ad8\u3044\u30a2\u30ab\u30a6\u30f3\u30c8\u306b\u30ed\u30b0\u30a4\u30f3\u3057\u305f\u308a\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 id=\"5-protect-yourself-from-malware\">5. \u30de\u30eb\u30a6\u30a7\u30a2\u5bfe\u7b56<\/h3>\n<p>\u30de\u30eb\u30a6\u30a7\u30a2\u304b\u3089\u4fdd\u8b77\u3059\u308b\u306b\u306f\u3001\u6700\u65b0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30d1\u30c3\u30c1\u3092\u9069\u7528\u3057\u3066\u30aa\u30da\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0 \u30b7\u30b9\u30c6\u30e0\u3068\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3092\u6700\u65b0\u306e\u72b6\u614b\u306b\u4fdd\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u30d5\u30a1\u30a4\u30a2\u30a6\u30a9\u30fc\u30eb\u304c\u5e38\u306b\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3001\u983b\u7e41\u306b\u30a6\u30a4\u30eb\u30b9 \u30b9\u30ad\u30e3\u30f3\u3092\u5b9f\u884c\u3057\u3001\u30a6\u30a4\u30eb\u30b9\u5b9a\u7fa9\u3092\u6700\u65b0\u306e\u72b6\u614b\u306b\u7dad\u6301\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 id=\"6-use-two-factor-authentication\">6. 2\u8981\u7d20\u8a8d\u8a3c\u3092\u5b9f\u88c5\u3059\u308b<\/h3>\n<p>2 \u8981\u7d20\u8a8d\u8a3c (2FA) \u306f\u3001\u30a2\u30ab\u30a6\u30f3\u30c8\u306e\u4fdd\u8b77\u3092\u3055\u3089\u306b\u5f37\u5316\u3057\u307e\u3059\u3002\u6709\u52b9\u306b\u3059\u308b\u3068\u3001\u30e2\u30d0\u30a4\u30eb \u30c7\u30d0\u30a4\u30b9\u306b\u56fa\u6709\u306e\u8a8d\u8a3c\u30b3\u30fc\u30c9\u304c\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u30b3\u30fc\u30c9\u306f\u3001\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3084 Web \u30b5\u30a4\u30c8\u306b\u30ed\u30b0\u30a4\u30f3\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u3067\u3059\u3002\u3053\u306e\u8ffd\u52a0\u624b\u9806\u306b\u3088\u308a\u3001\u7279\u306b\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fdd\u8b77\u3055\u308c\u3066\u3044\u306a\u3044\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u304c\u5927\u5e45\u306b\u5f37\u5316\u3055\u308c\u308b\u305f\u3081\u3001\u53ef\u80fd\u306a\u9650\u308a 2FA \u3092\u6709\u52b9\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h3 id=\"7-turn-off-file-sharing\">7. \u30d5\u30a1\u30a4\u30eb\u5171\u6709\u3092\u7121\u52b9\u306b\u3059\u308b<\/h3>\n<p>\u30d5\u30a1\u30a4\u30eb\u5171\u6709\u306f\u30c7\u30d0\u30a4\u30b9\u9593\u306e\u30d5\u30a1\u30a4\u30eb\u4ea4\u63db\u3092\u7c21\u7d20\u5316\u3057\u307e\u3059\u304c\u3001\u30d1\u30d6\u30ea\u30c3\u30af \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30ea\u30b9\u30af\u3092\u5927\u5e45\u306b\u9ad8\u3081\u307e\u3059\u3002\u30cf\u30c3\u30ab\u30fc\u306b\u30d5\u30a1\u30a4\u30eb\u3092\u516c\u958b\u3057\u3001\u6a5f\u5bc6\u30c7\u30fc\u30bf\u3078\u306e\u30a2\u30af\u30bb\u30b9\u3092\u8a31\u3057\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u4f7f\u7528\u3057\u3066\u3044\u308b\u30c7\u30d0\u30a4\u30b9\u306b\u5fdc\u3058\u3066\u3001\u30d5\u30a1\u30a4\u30eb\u5171\u6709\u3092\u30aa\u30d5\u306b\u3059\u308b\u65b9\u6cd5\u306f\u3055\u307e\u3056\u307e\u3067\u3059\u3002<\/p>\n<h3 id=\"things-to-know\">\u91cd\u8981\u306a\u8003\u616e\u4e8b\u9805<\/h3>\n<ul>\n<li>\u30e2\u30d0\u30a4\u30eb \u30c7\u30fc\u30bf\u306e\u4f7f\u7528\u306f\u3001\u516c\u8846 Wi-Fi \u306b\u4ee3\u308f\u308b\u5b89\u5168\u306a\u624b\u6bb5\u3067\u3042\u308a\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30ea\u30b9\u30af\u306e\u56de\u907f\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u30c7\u30d0\u30a4\u30b9\u304c Wi-Fi \u306e\u307f\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u643a\u5e2f\u96fb\u8a71\u306b\u30db\u30c3\u30c8\u30b9\u30dd\u30c3\u30c8\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3092\u691c\u8a0e\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>\u30d1\u30d6\u30ea\u30c3\u30af \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306b\u63a5\u7d9a\u3059\u308b\u524d\u306b\u3001\u8ffd\u52a0\u306e\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u5bfe\u7b56\u3068\u3057\u3066\u3001\u30d6\u30e9\u30a6\u30b6\u30fc\u306e\u5c65\u6b74\u3068\u30ad\u30e3\u30c3\u30b7\u30e5\u3092\u30af\u30ea\u30a2\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>\u30c7\u30d0\u30a4\u30b9\u306e Bluetooth \u304c\u6709\u52b9\u306b\u306a\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u4e0d\u6b63\u30a2\u30af\u30bb\u30b9\u3092\u9632\u3050\u305f\u3081\u306b\u3001\u516c\u8846 Wi-Fi \u306b\u63a5\u7d9a\u3059\u308b\u524d\u306b Bluetooth \u3092\u30aa\u30d5\u306b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/li>\n<li>\u30d1\u30d6\u30ea\u30c3\u30af Wi-Fi \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u304b\u3089\u5207\u65ad\u3057\u305f\u5f8c\u3001\u30c7\u30d0\u30a4\u30b9\u4e0a\u306e\u30de\u30eb\u30a6\u30a7\u30a2\u3092\u30b9\u30ad\u30e3\u30f3\u3057\u3001\u4e0d\u660e\u306a\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u524a\u9664\u3057\u3066\u3001\u30c7\u30d0\u30a4\u30b9\u3092\u518d\u8d77\u52d5\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p><a class=\"xiaomi\" href=\"https:\/\/allthings.how\/why-is-public-wi-fi-risky-and-how-to-protect-yourself-when-connecting-to-it\/\" rel=\"noopener norefferer nofollow\" target=\"_blank\">\u30bd\u30fc\u30b9<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u516c\u8846 Wi-Fi \u306f\u3001\u7a7a\u6e2f\u3001\u30ab\u30d5\u30a7\u3001\u30db\u30c6\u30eb\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u5834\u6240\u3067\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u306b\u63a5\u7d9a\u3067\u304d\u308b\u3001\u6bd4\u985e\u306e\u306a\u3044\u5229\u4fbf\u6027\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u3053\u308c\u3089\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u4f7f\u7528\u3059\u308b\u3068\u3001\u30c7\u30d0\u30a4\u30b9\u304c\u3055\u307e\u3056\u307e\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u8105\u5a01\u306b\u3055\u3089\u3055\u308c\u3001\u30cf\u30c3\u30ad\u30f3\u30b0\u304c\u5927\u304d\u306a\u61f8\u5ff5\u4e8b\u9805\u3068\u306a\u308a\u307e\u3059\u3002\u516c\u8846 Wi-Fi \u306b\u306f\u5f37\u529b\u306a\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3 \u30d7\u30ed\u30c8\u30b3\u30eb\u304c\u306a\u3044\u305f\u3081\u3001\u30b5\u30a4\u30d0\u30fc\u72af\u7f6a\u8005\u304c\u63a5\u7d9a\u3055\u308c\u305f\u30c7\u30d0\u30a4\u30b9\u306b\u4fb5\u5165\u3059\u308b\u306e\u306f\u7c21\u5358\u3067\u3059\u3002\u305d\u306e\u7d50\u679c\u3001\u60aa\u610f\u306e\u3042\u308b\u653b\u6483\u8005\u306f\u3053\u308c\u3089\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3092\u60aa\u7528\u3057\u3066\u3001\u4e2d\u9593\u8005 (MITM) \u653b\u6483\u3001\u30bb\u30c3\u30b7\u30e7\u30f3 \u30cf\u30a4\u30b8\u30e3\u30c3\u30af\u3001\u30d1\u30b1\u30c3\u30c8 \u30b9\u30cb\u30c3\u30d5\u30a3\u30f3\u30b0\u306a\u3069\u306e\u3055\u307e\u3056\u307e\u306a\u30b5\u30a4\u30d0\u30fc\u653b\u6483\u624b\u6cd5\u3092\u5b9f\u884c\u3057\u307e\u3059\u3002 \u4e00\u822c\u7684\u306a\u30b5\u30a4\u30d0\u30fc\u653b\u6483 \u4ee5\u4e0b\u306f\u3001\u516c\u5171\u306e Wi-Fi \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u4e0a\u306e\u30e6\u30fc\u30b6\u30fc\u3092\u6a19\u7684\u3068\u3059\u308b\u4e00\u822c\u7684\u306a\u30b5\u30a4\u30d0\u30fc\u8105\u5a01\u306e\u4e00\u90e8\u3067\u3059\u3002 \u4e2d\u9593\u8005 (MITM) \u653b\u6483: MITM \u653b\u6483\u3067\u306f\u3001\u653b\u6483\u8005\u304c\u30e6\u30fc\u30b6\u30fc\u306e\u30c7\u30d0\u30a4\u30b9\u3068\u30e6\u30fc\u30b6\u30fc\u304c\u30a2\u30af\u30bb\u30b9\u3057\u3066\u3044\u308b Web \u30b5\u30a4\u30c8\u9593\u306e\u901a\u4fe1\u3092\u5bc6\u304b\u306b\u508d\u53d7\u3057\u3001\u6a5f\u5bc6\u30c7\u30fc\u30bf\u3092\u76d7\u3093\u3060\u308a\u5909\u66f4\u3057\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fdd\u8b77\u3055\u308c\u3066\u3044\u306a\u3044 Wi-Fi \u63a5\u7d9a\u3067\u6700\u3082\u983b\u7e41\u306b\u767a\u751f\u3059\u308b\u653b\u6483\u306e 1 \u3064\u3067\u3059\u3002 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\u30b9\u30cb\u30c3\u30d5\u30a3\u30f3\u30b0\u306f\u3059\u3050\u306b\u640d\u5bb3\u3092\u5f15\u304d\u8d77\u3053\u3059\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u653b\u6483\u8005\u306f\u30aa\u30fc\u30d7\u30f3 Wi-Fi \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u7d4c\u7531\u3067\u9001\u4fe1\u3055\u308c\u308b\u30c7\u30fc\u30bf\u3092\u30ad\u30e3\u30d7\u30c1\u30e3\u3057\u3066\u5206\u6790\u3067\u304d\u307e\u3059\u3002HTTPS \u306b\u3088\u3063\u3066\u3053\u306e\u3088\u3046\u306a\u653b\u6483\u306e\u52b9\u679c\u306f\u4f4e\u4e0b\u3057\u307e\u3057\u305f\u304c\u3001\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4fdd\u8b77\u3055\u308c\u3066\u3044\u306a\u3044 Web \u30b5\u30a4\u30c8\u7d4c\u7531\u3067\u60c5\u5831\u304c\u9001\u4fe1\u3055\u308c\u308b\u3068\u3001\u60c5\u5831\u304c\u6f0f\u6d29\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 \u30bb\u30c3\u30b7\u30e7\u30f3 \u30cf\u30a4\u30b8\u30e3\u30c3\u30af:\u30cf\u30c3\u30ab\u30fc\u306f\u30bb\u30c3\u30b7\u30e7\u30f3 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