{"id":16179,"date":"2026-08-10T18:30:38","date_gmt":"2026-08-10T08:30:38","guid":{"rendered":"https:\/\/geoffreychen.com\/real-risks-of-public-wifi\/"},"modified":"2026-08-10T18:47:47","modified_gmt":"2026-08-10T08:47:47","slug":"real-risks-of-public-wifi","status":"publish","type":"post","link":"https:\/\/geoffreychen.com\/zh\/real-risks-of-public-wifi\/","title":{"rendered":"\u516c\u5171Wi-Fi\u771f\u6b63\u7684\u98ce\u9669\u662f\u4ec0\u4e48\uff1f"},"content":{"rendered":"<\/p>\n<p><strong>\u7b80\u77ed\u7b54\u6848<\/strong><\/p>\n<p>\u516c\u5171Wi-Fi\u7684\u98ce\u9669\u6ca1\u6709\u65e9\u671f\u4e92\u8054\u7f51\u65f6\u4ee3\u90a3\u4e48\u7b80\u5355\uff0c\u4e5f\u6ca1\u6709\u5b8c\u5168\u6d88\u5931\u3002\u4eca\u5929\u5927\u591a\u6570\u6b63\u89c4\u7f51\u7ad9\u548cApp\u4f7f\u7528HTTPS\u52a0\u5bc6\uff0c\u9644\u8fd1\u7684\u4eba\u901a\u5e38\u4e0d\u80fd\u50cf\u8fc7\u53bb\u90a3\u6837\u76f4\u63a5\u8bfb\u51fa\u7f51\u9875\u5185\u5bb9\u548c\u5bc6\u7801\u3002\u66f4\u73b0\u5b9e\u7684\u98ce\u9669\u5305\u62ec\u8fde\u4e0a\u540d\u79f0\u76f8\u4f3c\u7684\u5047\u70ed\u70b9\u3001\u88ab\u4f2a\u9020\u767b\u5f55\u9875\u9a97\u53d6\u8d26\u53f7\u3001\u5ffd\u7565\u8bc1\u4e66\u8b66\u544a\u3001\u8bbe\u5907\u5f00\u653e\u6587\u4ef6\u5171\u4eab\u3001\u4f7f\u7528\u672a\u66f4\u65b0\u8f6f\u4ef6\uff0c\u4ee5\u53ca\u5728\u4e0d\u53ef\u4fe1\u7f51\u7edc\u4e0a\u5904\u7406\u9ad8\u654f\u611f\u4e8b\u52a1\u3002\u98ce\u9669\u53d6\u51b3\u4e8e\u8bbe\u5907\u3001\u8fde\u63a5\u3001\u7f51\u7ad9\u548c\u64cd\u4f5c\u7684\u7ec4\u5408\uff0c\u800c\u4e0d\u662f\u201c\u514d\u8d39Wi-Fi\u5fc5\u7136\u5371\u9669\u201d\u3002<\/p>\n<p><strong>HTTPS\u6539\u53d8\u4e86\u516c\u5171\u7f51\u7edc\u7684\u98ce\u9669\u7ed3\u6784<\/strong><\/p>\n<p>\u65e9\u671f\u7f51\u9875\u5927\u91cf\u4f7f\u7528\u672a\u52a0\u5bc6HTTP\uff0c\u540c\u4e00\u7f51\u7edc\u4e0a\u7684\u653b\u51fb\u8005\u53ef\u80fd\u76f4\u63a5\u89c2\u5bdf\u6216\u7be1\u6539\u6d41\u91cf\u3002\u73b0\u5728HTTPS\u5728\u8bbe\u5907\u548c\u7f51\u7ad9\u4e4b\u95f4\u52a0\u5bc6\u5185\u5bb9\uff0c\u5e76\u9a8c\u8bc1\u8bbe\u5907\u8fde\u63a5\u7684\u57df\u540d\u8bc1\u4e66\u3002\u5373\u4f7f\u5496\u5561\u9986Wi-Fi\u672c\u8eab\u6ca1\u6709\u52a0\u5bc6\uff0c\u6b63\u786e\u7684HTTPS\u4ecd\u80fd\u4fdd\u62a4\u7f51\u9875\u6b63\u6587\u3001\u5bc6\u7801\u548c\u8868\u5355\u5728\u4f20\u8f93\u4e2d\u4e0d\u88ab\u666e\u901a\u65c1\u89c2\u8005\u76f4\u63a5\u8bfb\u53d6\u3002<\/p>\n<p>\u7f8e\u56fdFTC\u5728\u66f4\u65b0\u540e\u7684\u6d88\u8d39\u8005\u6307\u5357\u4e2d\u6307\u51fa\uff0c\u7531\u4e8e\u52a0\u5bc6\u5df2\u7ecf\u5e7f\u6cdb\u4f7f\u7528\uff0c\u8fde\u63a5\u516c\u5171Wi-Fi\u901a\u5e38\u662f\u5b89\u5168\u7684\uff1b\u7528\u6237\u4ecd\u5e94\u786e\u8ba4\u5730\u5740\u680f\u4e2d\u7684HTTPS\u6216\u9501\u5f62\u6807\u5fd7\uff0c\u5e76\u4fdd\u6301\u7cfb\u7edf\u548c\u6d4f\u89c8\u5668\u66f4\u65b0\u3002<a href=\"https:\/\/consumer.ftc.gov\/articles\/are-public-wi-fi-networks-safe-what-you-need-know\" target=\"_blank\" rel=\"noopener\">FTC\uff1aAre Public Wi-Fi Networks Safe?<\/a><\/p>\n<p>\u8fd9\u9879\u53d8\u5316\u610f\u5473\u7740\u201c\u4efb\u4f55\u516c\u5171Wi-Fi\u90fd\u80fd\u8f7b\u6613\u5077\u8d70\u6240\u6709\u5bc6\u7801\u201d\u7684\u8bf4\u6cd5\u8fc7\u5ea6\u7b80\u5316\u3002\u4f46HTTPS\u4fdd\u62a4\u7684\u662f\u8bbe\u5907\u5230\u76ee\u6807\u7f51\u7ad9\u4e4b\u95f4\u7684\u901a\u9053\uff0c\u4e0d\u8bc1\u660e\u76ee\u6807\u7f51\u7ad9\u8bda\u5b9e\uff0c\u4e5f\u4e0d\u963b\u6b62\u7528\u6237\u4e3b\u52a8\u628a\u5bc6\u7801\u4ea4\u7ed9\u5047\u7f51\u7ad9\u3002\u98ce\u9669\u4ece\u5355\u7eaf\u7a83\u542c\uff0c\u66f4\u591a\u8f6c\u5411\u8eab\u4efd\u6b3a\u9a97\u3001\u7ec8\u7aef\u6f0f\u6d1e\u548c\u9519\u8bef\u51b3\u5b9a\u3002<\/p>\n<p><strong>\u5047\u70ed\u70b9\u6bd4\u5f00\u653e\u70ed\u70b9\u66f4\u503c\u5f97\u8b66\u60d5<\/strong><\/p>\n<p>Wi-Fi\u540d\u79f0\u4e0d\u662f\u552f\u4e00\u8eab\u4efd\u3002\u653b\u51fb\u8005\u53ef\u4ee5\u521b\u5efa\u201cAirport_Free_WiFi\u201d\u201cHotel Guest\u201d\u6216\u4e0e\u5496\u5561\u9986\u5b98\u65b9\u7f51\u7edc\u53ea\u5dee\u4e00\u4e2a\u5b57\u7b26\u7684\u70ed\u70b9\u3002\u8bbe\u5907\u8fde\u4e0a\u540e\uff0c\u653b\u51fb\u8005\u53ef\u80fd\u5c55\u793a\u4f2a\u9020\u767b\u5f55\u9875\uff0c\u8981\u6c42\u8f93\u5165\u90ae\u7bb1\u3001\u793e\u4ea4\u8d26\u53f7\u3001\u4fe1\u7528\u5361\u6216\u6240\u8c13\u9a8c\u8bc1\u4fe1\u606f\uff0c\u4e5f\u53ef\u80fd\u5f15\u5bfc\u4e0b\u8f7d\u8bc1\u4e66\u3001\u914d\u7f6e\u6587\u4ef6\u6216App\u3002<\/p>\n<p>\u6fb3\u6d32\u7f51\u7edc\u5b89\u5168\u4e2d\u5fc3\u5efa\u8bae\u4ece\u573a\u6240\u6807\u8bc6\u6216\u5de5\u4f5c\u4eba\u5458\u5904\u786e\u8ba4\u5b98\u65b9\u70ed\u70b9\u540d\u79f0\uff0c\u5173\u95ed\u81ea\u52a8\u8fde\u63a5\uff0c\u4f7f\u7528\u540e\u201c\u5fd8\u8bb0\u201d\u7f51\u7edc\uff1b\u6709\u7591\u95ee\u65f6\u6539\u7528\u53ef\u4fe1\u5bb6\u5ead\u3001\u529e\u516c\u5ba4\u6216\u79fb\u52a8\u7f51\u7edc\u3002<a href=\"https:\/\/www.cyber.gov.au\/protect-yourself\/staying-secure-online\/connecting-to-public-wi-fi\" target=\"_blank\" rel=\"noopener\">Cyber.gov.au\uff1aConnecting to public Wi-Fi and hotspots<\/a><\/p>\n<p>\u771f\u6b63\u9700\u8981\u5173\u6ce8\u7684\u4e0d\u662f\u70ed\u70b9\u662f\u5426\u6709\u4e00\u4e2a\u516c\u5f00\u5f20\u8d34\u7684\u5bc6\u7801\u3002\u6709\u5bc6\u7801\u7684\u8bbf\u5ba2\u7f51\u7edc\u53ef\u80fd\u6240\u6709\u4f4f\u5ba2\u5171\u4eab\uff0c\u5047\u70ed\u70b9\u4e5f\u53ef\u4ee5\u6a21\u4eff\u767b\u5f55\u3002\u5bc6\u7801\u80fd\u52a0\u5bc6\u8bbe\u5907\u5230\u63a5\u5165\u70b9\u7684\u4e00\u90e8\u5206\u65e0\u7ebf\u901a\u4fe1\uff0c\u5374\u4e0d\u8bc1\u660e\u8fd0\u8425\u8005\u8eab\u4efd\u548c\u540e\u7eed\u4e92\u8054\u7f51\u8def\u5f84\u53ef\u4fe1\u3002<\/p>\n<p><strong>\u767b\u5f55\u95e8\u6237\u662f\u5bb9\u6613\u6df7\u6dc6\u7684\u73af\u8282<\/strong><\/p>\n<p>\u673a\u573a\u3001\u9152\u5e97\u548c\u5496\u5561\u9986\u5e38\u4f7f\u7528captive portal\uff0c\u5728\u6b63\u5f0f\u8054\u7f51\u524d\u663e\u793a\u6761\u6b3e\u6216\u623f\u53f7\u767b\u5f55\u3002\u8bbe\u5907\u4e3a\u4e86\u6253\u5f00\u95e8\u6237\uff0c\u53ef\u80fd\u5148\u53d1\u51fa\u672a\u52a0\u5bc6\u8fde\u63a5\uff0c\u6d4f\u89c8\u5668\u518d\u88ab\u91cd\u5b9a\u5411\u3002\u5408\u6cd5\u95e8\u6237\u672c\u8eab\u4e0d\u4e00\u5b9a\u5371\u9669\uff0c\u4f46\u5b83\u8ba9\u7528\u6237\u4e60\u60ef\u201cWi-Fi\u4f1a\u628a\u6211\u5e26\u5230\u53e6\u4e00\u4e2a\u9875\u9762\u201d\uff0c\u7ed9\u4eff\u5192\u9875\u9762\u7559\u4e0b\u7a7a\u95f4\u3002<\/p>\n<p>\u5982\u679c\u95e8\u6237\u8981\u6c42\u90ae\u7bb1\uff0c\u5148\u5224\u65ad\u573a\u6240\u662f\u5426\u771f\u7684\u9700\u8981\uff1b\u5982\u679c\u8981\u6c42\u4e3b\u8981\u90ae\u7bb1\u5bc6\u7801\u3001\u94f6\u884c\u8d44\u6599\u3001\u5b89\u88c5\u6839\u8bc1\u4e66\u3001\u4e0b\u8f7d\u4e0d\u660e\u914d\u7f6e\u6216\u5173\u95ed\u5b89\u5168\u529f\u80fd\uff0c\u5e94\u505c\u6b62\u3002\u7f51\u7edc\u8fd0\u8425\u8005\u901a\u5e38\u6ca1\u6709\u7406\u7531\u77e5\u9053\u4f60\u7684\u90ae\u7bb1\u5bc6\u7801\u3002\u6d4f\u89c8\u5668\u51fa\u73b0\u8bc1\u4e66\u9519\u8bef\u65f6\uff0c\u4e0d\u8981\u56e0\u4e3a\u201c\u53ea\u662f\u9152\u5e97Wi-Fi\u201d\u5c31\u7ee7\u7eed\u7ed5\u8fc7\u3002<\/p>\n<p><strong>\u540c\u4e00\u7f51\u7edc\u4e0a\u7684\u8bbe\u5907\u66b4\u9732<\/strong><\/p>\n<p>\u7535\u8111\u53ef\u80fd\u628a\u65b0\u7f51\u7edc\u8bef\u8bbe\u4e3a\u201c\u79c1\u4eba\u201d\u6216\u201c\u5bb6\u5ead\u201d\uff0c\u4ece\u800c\u5f00\u653e\u6587\u4ef6\u5171\u4eab\u3001\u6253\u5370\u3001\u8bbe\u5907\u53d1\u73b0\u6216\u8fdc\u7a0b\u670d\u52a1\u3002\u5728\u516c\u5171\u573a\u6240\u5e94\u9009\u62e9\u201c\u516c\u5171\u7f51\u7edc\u201d\u914d\u7f6e\uff0c\u5173\u95ed\u4e0d\u9700\u8981\u7684\u5171\u4eab\u548cAirDrop\u63a5\u6536\uff0c\u542f\u7528\u9632\u706b\u5899\uff0c\u5e76\u786e\u4fdd\u7cfb\u7edf\u8865\u4e01\u53ca\u65f6\u5b89\u88c5\u3002Cyber.gov.au\u4e5f\u5efa\u8bae\u516c\u5171Wi-Fi\u4e0a\u5173\u95ed\u6587\u4ef6\u5171\u4eab\u3002<\/p>\n<p>\u98ce\u9669\u4e0d\u53ea\u6765\u81ea\u7f51\u7edc\u6d41\u91cf\u3002\u62e5\u6324\u573a\u6240\u8fd8\u6709\u80a9\u7aa5\u3001\u8bbe\u5907\u88ab\u62ff\u8d70\u3001\u5145\u7535\u63a5\u53e3\u3001\u9057\u7559\u767b\u5f55\u4f1a\u8bdd\u548c\u5c4f\u5e55\u901a\u77e5\u3002\u4e00\u4e2a\u4eba\u5728\u673a\u573a\u6253\u5f00\u5ba2\u6237\u8d44\u6599\uff0c\u5373\u4f7fHTTPS\u5b8c\u7f8e\uff0c\u4e5f\u53ef\u80fd\u88ab\u65c1\u8fb9\u7684\u4eba\u770b\u5230\u3002\u7f51\u7edc\u5b89\u5168\u4e0d\u80fd\u66ff\u4ee3\u7269\u7406\u4e0e\u5c4f\u5e55\u9690\u79c1\u3002<\/p>\n<p><strong>VPN\u6709\u7528\uff0c\u4f46\u4e0d\u662f\u53ef\u4fe1\u8bc1\u660e<\/strong><\/p>\n<p>VPN\u5728\u8bbe\u5907\u548cVPN\u670d\u52a1\u5668\u4e4b\u95f4\u5efa\u7acb\u52a0\u5bc6\u901a\u9053\uff0c\u53ef\u4ee5\u51cf\u5c11\u672c\u5730\u70ed\u70b9\u548c\u7f51\u7edc\u8fd0\u8425\u8005\u770b\u5230\u7684\u6d41\u91cf\uff0c\u5e76\u6539\u53d8\u7f51\u7ad9\u770b\u5230\u7684\u51fa\u53e3IP\u3002\u7ecf\u5e38\u4f7f\u7528\u516c\u5171Wi-Fi\u3001\u8fdc\u7a0b\u8bbf\u95ee\u516c\u53f8\u7cfb\u7edf\u6216\u9762\u4e34\u7279\u5b9a\u7f51\u7edc\u76d1\u63a7\u65f6\uff0c\u5b83\u5f88\u6709\u4ef7\u503c\u3002<\/p>\n<p>\u4f46VPN\u628a\u4e00\u90e8\u5206\u4fe1\u4efb\u4ea4\u7ed9VPN\u63d0\u4f9b\u5546\u3002\u670d\u52a1\u5546\u53ef\u80fd\u770b\u5230\u8fde\u63a5\u5143\u6570\u636e\uff0c\u5ba2\u6237\u7aef\u672c\u8eab\u9700\u8981\u66f4\u65b0\uff0c\u6076\u610f\u6216\u8d28\u91cf\u4f4e\u52a3\u7684\u514d\u8d39VPN\u53ef\u80fd\u6536\u96c6\u6570\u636e\u3002VPN\u4e5f\u4e0d\u4f1a\u8bc6\u522b\u5047\u94f6\u884c\u7f51\u7ad9\u3001\u963b\u6b62\u7528\u6237\u5728\u9493\u9c7c\u9875\u8f93\u5165\u5bc6\u7801\u3001\u4fee\u590d\u611f\u67d3\u6076\u610f\u8f6f\u4ef6\u7684\u8bbe\u5907\uff0c\u6216\u4f7f\u767b\u5f55\u8d26\u6237\u533f\u540d\u3002\u9009\u62e9\u5e94\u57fa\u4e8e\u8fd0\u8425\u4e3b\u4f53\u3001\u9690\u79c1\u653f\u7b56\u3001\u72ec\u7acb\u8bc4\u4ef7\u3001\u66f4\u65b0\u8bb0\u5f55\u548c\u5546\u4e1a\u6a21\u5f0f\u3002<\/p>\n<p><strong>\u6211\u7684\u5224\u65ad\uff1a\u516c\u5171Wi-Fi\u662f\u201c\u964d\u4f4e\u4fe1\u4efb\u7b49\u7ea7\u201d\uff0c\u4e0d\u662f\u201c\u5b8c\u5168\u7981\u6b62\u201d<\/strong><\/p>\n<p>\u4ece\u7cfb\u7edf\u89d2\u5ea6\u770b\uff0c\u7f51\u7edc\u53ea\u662f\u4ea4\u6613\u94fe\u6761\u7684\u4e00\u5c42\u3002\u5b89\u5168\u8fde\u63a5\u8fd8\u4f9d\u8d56\u6b63\u786e\u57df\u540d\u3001\u6709\u6548\u8bc1\u4e66\u3001\u66f4\u65b0\u8bbe\u5907\u3001\u53ef\u4fe1App\u3001\u8d26\u6237\u9a8c\u8bc1\u548c\u7528\u6237\u884c\u4e3a\u3002\u628a\u516c\u5171Wi-Fi\u4e00\u5f8b\u79f0\u4e3a\u5371\u9669\uff0c\u5bb9\u6613\u4ea7\u751f\u4e24\u79cd\u8bef\u5bfc\uff1a\u4eba\u4eec\u53ef\u80fd\u4e0d\u5fc5\u8981\u5730\u6050\u614c\uff1b\u4e5f\u53ef\u80fd\u8ba4\u4e3a\u6362\u6210\u79fb\u52a8\u6570\u636e\u540e\uff0c\u9493\u9c7c\u7f51\u7ad9\u548c\u5f31\u5bc6\u7801\u5c31\u4e0d\u518d\u5371\u9669\u3002<\/p>\n<p>\u66f4\u597d\u7684\u89c4\u5219\u662f\u964d\u4f4e\u4fe1\u4efb\u7b49\u7ea7\u3002\u666e\u901a\u9605\u8bfb\u3001\u5730\u56fe\u548c\u4f4e\u654f\u611f\u67e5\u8be2\uff0c\u5728\u66f4\u65b0\u8bbe\u5907\u548cHTTPS\u4e0b\u901a\u5e38\u98ce\u9669\u8f83\u4f4e\uff1b\u94f6\u8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