{"id":2373,"date":"2023-08-20T02:48:26","date_gmt":"2023-08-20T02:48:26","guid":{"rendered":"https:\/\/securitybriefing.net\/?p=2373"},"modified":"2023-08-20T03:12:59","modified_gmt":"2023-08-20T03:12:59","slug":"cach-bao-ve-wifi-nha-cua-ban","status":"publish","type":"post","link":"https:\/\/securitybriefing.net\/vi\/wifi\/cach-bao-ve-wifi-nha-cua-ban\/","title":{"rendered":"C\u00e1ch b\u1ea3o v\u1ec7 WiFi t\u1ea1i nh\u00e0 c\u1ee7a b\u1ea1n"},"content":{"rendered":"

WiFi \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y c\u1ee7a ch\u00fang ta, mang \u0111\u1ebfn cho ch\u00fang ta s\u1ef1 ti\u1ec7n l\u1ee3i khi truy c\u1eadp th\u00f4ng tin ngay l\u1eadp t\u1ee9c v\u00e0 t\u00ednh linh ho\u1ea1t khi l\u00e0m vi\u1ec7c t\u1eeb h\u1ea7u nh\u01b0 m\u1ecdi v\u1ecb tr\u00ed. Tuy nhi\u00ean, c\u0169ng gi\u1ed1ng nh\u01b0 ch\u00fang ta b\u1ea3o v\u1ec7 ng\u00f4i nh\u00e0 c\u1ee7a m\u00ecnh kh\u1ecfi c\u00e1c m\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i b\u1ea3o v\u1ec7 danh t\u00ednh k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a ch\u00fang ta v\u1edbi s\u1ef1 c\u1ea3nh gi\u00e1c t\u01b0\u01a1ng t\u1ef1. Vi\u1ec7c b\u1ecf qua c\u00e1c bi\u1ec7n ph\u00e1p an to\u00e0n k\u1ef9 thu\u1eadt s\u1ed1 quan tr\u1ecdng c\u00f3 th\u1ec3 g\u00e2y nguy hi\u1ec3m cho b\u1ea3o m\u1eadt v\u00e0 k\u1ebft n\u1ed1i tr\u1ef1c tuy\u1ebfn c\u1ee7a ch\u00fang ta.<\/p>\n\n\n\n

M\u1eb7c d\u00f9 th\u1eadt h\u1ea5p d\u1eabn khi \u00e1p d\u1ee5ng m\u1ed9t t\u01b0 t\u01b0\u1edfng \"c\u00e0i \u0111\u1eb7t v\u00e0 qu\u00ean \u0111i\" v\u1edbi c\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn t\u1ea1i nh\u00e0 c\u1ee7a ch\u00fang ta, nh\u01b0ng \u0111i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 l\u00e0 m\u1ed9t s\u1ef1 b\u1ecf s\u00f3t nguy hi\u1ec3m. \u0110\u1ea3m b\u1ea3o r\u1eb1ng c\u00e1c thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i WiFi c\u1ee7a b\u1ea1n ho\u1ea1t \u0111\u1ed9ng ch\u1ec9 l\u00e0 ph\u1ea7n n\u1ed5i c\u1ee7a t\u1ea3ng b\u0103ng tr\u00f4i. \u0110\u1ec3 th\u1ef1c s\u1ef1 b\u1ea3o v\u1ec7 m\u1ea1ng gia \u0111\u00ecnh c\u1ee7a b\u1ea1n, h\u00e3y c\u00e2n nh\u1eafc c\u00e1c b\u01b0\u1edbc sau:<\/p>\n\n\n

1. S\u1eeda \u0111\u1ed5i th\u00f4ng tin \u0111\u0103ng nh\u1eadp c\u1ee7a qu\u1ea3n tr\u1ecb vi\u00ean b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn<\/strong><\/h2>\n\n\n

H\u1ea7u h\u1ebft c\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn \u0111\u1ec1u \u0111\u01b0\u1ee3c trang b\u1ecb t\u00ean ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u1eadt kh\u1ea9u chung; m\u1ed9t s\u1ed1 th\u1eadm ch\u00ed c\u00f3 th\u1ec3 kh\u00f4ng c\u00f3 m\u1eadt kh\u1ea9u ngay t\u1eeb \u0111\u1ea7u. M\u1eb7c d\u00f9 nh\u1eefng th\u00f4ng tin x\u00e1c th\u1ef1c n\u00e0y l\u00e0 c\u1ea7n thi\u1ebft cho qu\u00e1 tr\u00ecnh thi\u1ebft l\u1eadp ban \u0111\u1ea7u, nh\u01b0ng \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i thay \u0111\u1ed5i ch\u00fang ngay l\u1eadp t\u1ee9c. Gi\u1eef nguy\u00ean c\u00e0i \u0111\u1eb7t m\u1eb7c \u0111\u1ecbnh gi\u00fap b\u1ea5t k\u1ef3 ai c\u00f3 quy\u1ec1n truy c\u1eadp v\u1eadt l\u00fd v\u00e0o b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n d\u1ec5 d\u00e0ng can thi\u1ec7p.<\/p>\n\n\n

2. C\u1eadp nh\u1eadt T\u00ean M\u1ea1ng (SSID)<\/strong><\/h2>\n\n\n

M\u00e3 nh\u1eadn d\u1ea1ng b\u1ed9 d\u1ecbch v\u1ee5 (SSID) c\u1ee7a b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n (SSID<\/a>) l\u00e0 t\u00ean \u0111\u01b0\u1ee3c ph\u00e1t s\u00f3ng c\u00f4ng khai c\u1ee7a n\u00f3. Vi\u1ec7c gi\u1eef nguy\u00ean SSID m\u1eb7c \u0111\u1ecbnh c\u00f3 th\u1ec3 v\u00f4 t\u00ecnh ti\u1ebft l\u1ed9 th\u01b0\u01a1ng hi\u1ec7u ho\u1eb7c m\u1eabu m\u00e3 c\u1ee7a b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n. Thay v\u00e0o \u0111\u00f3, h\u00e3y c\u00e1 nh\u00e2n h\u00f3a t\u00ean m\u1ea1ng c\u1ee7a b\u1ea1n. Vi\u1ec7c thay \u0111\u1ed5i SSID th\u01b0\u1eddng xuy\u00ean c\u00f3 th\u1ec3 gi\u00fap lo\u1ea1i b\u1ecf ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng mong mu\u1ed1n, nh\u01b0ng lu\u00f4n nh\u1edb t\u00ean v\u00e0 k\u1ebft n\u1ed1i l\u1ea1i t\u1ea5t c\u1ea3 c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n khi l\u00e0m nh\u01b0 v\u1eady.<\/p>\n\n\n

3. B\u1eadt m\u00e3 h\u00f3a<\/strong><\/h2>\n\n\n

K\u00edch ho\u1ea1t m\u00e3 h\u00f3a l\u00e0 t\u1ed1i quan tr\u1ecdng. C\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn hi\u1ec7n \u0111\u1ea1i \u0111i k\u00e8m v\u1edbi t\u00ednh n\u0103ng n\u00e0y, v\u00ec v\u1eady h\u00e3y \u0111\u1ea3m b\u1ea3o b\u1ea1n \u0111ang s\u1eed d\u1ee5ng n\u00f3. Truy c\u1eadp c\u00e0i \u0111\u1eb7t b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n, t\u00ecm ki\u1ebfm c\u00e1c t\u00f9y ch\u1ecdn b\u1ea3o m\u1eadt v\u00e0 k\u00edch ho\u1ea1t WPA2 Personal (ho\u1eb7c WPA2-PSK). N\u1ebfu kh\u00f4ng kh\u1ea3 d\u1ee5ng, h\u00e3y ch\u1ecdn WPA Personal. \u0110\u1eb7t m\u00e3 h\u00f3a th\u00e0nh AES (tr\u00e1nh TKIP) v\u00e0 thi\u1ebft l\u1eadp m\u1ed9t m\u1eadt kh\u1ea9u duy nh\u1ea5t, kh\u00f3 \u0111o\u00e1n cho WiFi \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a c\u1ee7a b\u1ea1n. M\u1eadt kh\u1ea9u n\u00e0y kh\u00e1c v\u1edbi m\u1eadt kh\u1ea9u c\u1ee7a b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn v\u00e0 l\u00e0 b\u1eaft bu\u1ed9c \u0111\u1ed1i v\u1edbi m\u1ecdi thi\u1ebft b\u1ecb k\u1ebft n\u1ed1i v\u1edbi WiFi c\u1ee7a b\u1ea1n.<\/p>\n\n\n

4. K\u00edch ho\u1ea1t T\u01b0\u1eddng l\u1eeda c\u1ee7a B\u1ed9 \u0111\u1ecbnh tuy\u1ebfn<\/strong><\/h2>\n\n\n

H\u1ea7u h\u1ebft c\u00e1c b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn \u0111i k\u00e8m v\u1edbi t\u01b0\u1eddng l\u1eeda t\u00edch h\u1ee3p, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1ea3o v\u1ec7 m\u1ea1ng n\u1ed9i b\u1ed9 c\u1ee7a b\u1ea1n kh\u1ecfi c\u00e1c m\u1ed1i \u0111e d\u1ecda b\u00ean ngo\u00e0i. \u0110\u1ea3m b\u1ea3o r\u1eb1ng n\u00f3 \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t \u0111\u1ec3 th\u00eam m\u1ed9t l\u1edbp b\u1ea3o v\u1ec7. T\u00ednh n\u0103ng n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c d\u00e1n nh\u00e3n l\u00e0 SPI (stateful packet inspection) ho\u1eb7c NAT<\/a> (d\u1ecbch \u0111\u1ecba ch\u1ec9 m\u1ea1ng).<\/p>\n\n\n

5. C\u00e2n nh\u1eafc vi\u1ec7c v\u00f4 hi\u1ec7u h\u00f3a DHCP<\/strong><\/h2>\n\n\n

\u0110\u1ec3 b\u1ea3o m\u1eadt cao h\u01a1n, b\u1ea1n c\u00f3 th\u1ec3 v\u00f4 hi\u1ec7u h\u00f3a DHCP<\/a> (Giao th\u1ee9c C\u1ea5u h\u00ecnh M\u00e1y ch\u1ee7 \u0110\u1ed9ng). B\u01b0\u1edbc n\u00e0y bao g\u1ed3m vi\u1ec7c ch\u1ec9 \u0111\u1ecbnh \u0111\u1ecba ch\u1ec9 IP cho t\u1eebng thi\u1ebft b\u1ecb theo c\u00e1ch th\u1ee7 c\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n. Tuy nhi\u00ean, c\u00e1c hacker l\u00e0nh ngh\u1ec1 v\u1eabn c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o m\u1ea1ng c\u1ee7a b\u1ea1n ngay c\u1ea3 khi DHCP b\u1ecb t\u1eaft, \u0111\u1eb7c bi\u1ec7t n\u1ebfu h\u1ecd c\u00f3 th\u1ec3 suy ra ph\u1ea1m vi IP c\u1ee7a b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn c\u1ee7a b\u1ea1n.<\/p>\n\n\n

6. V\u00f4 hi\u1ec7u h\u00f3a m\u1ea1ng kh\u00e1ch<\/strong><\/h2>\n\n\n

M\u1eb7c d\u00f9 vi\u1ec7c cung c\u1ea5p cho kh\u00e1ch m\u1ed9t m\u1ea1ng kh\u00f4ng \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a c\u00f3 v\u1ebb hi\u1ebfu kh\u00e1ch, nh\u01b0ng \u0111\u00f3 l\u00e0 m\u1ed9t r\u1ee7i ro b\u1ea3o m\u1eadt ti\u1ec1m \u1ea9n. N\u1ebfu ai \u0111\u00f3 \u1edf trong ph\u1ea1m vi WiFi c\u1ee7a b\u1ea1n, h\u1ecd ph\u1ea3i \u0111\u1ee7 g\u1ea7n \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 chia s\u1ebb tr\u1ef1c ti\u1ebfp m\u1eadt kh\u1ea9u c\u1ee7a m\u00ecnh. N\u1ebfu c\u1ea7n, b\u1ea1n lu\u00f4n c\u00f3 th\u1ec3 \u0111\u1eb7t l\u1ea1i m\u1eadt kh\u1ea9u WiFi sau \u0111\u00f3.<\/p>\n\n\n

7. \u0110i\u1ec1u ch\u1ec9nh c\u00f4ng su\u1ea5t ph\u00e1t s\u00f3ng<\/strong><\/h2>\n\n\n

N\u1ebfu t\u00edn hi\u1ec7u WiFi c\u1ee7a b\u1ea1n v\u01b0\u1ee3t ra ngo\u00e0i ng\u00f4i nh\u00e0 c\u1ee7a b\u1ea1n, n\u00f3 c\u00f3 th\u1ec3 \u0111ang m\u1eddi g\u1ecdi nh\u1eefng truy c\u1eadp kh\u00f4ng mong mu\u1ed1n. Tr\u00ean nhi\u1ec1u b\u1ed9 \u0111\u1ecbnh tuy\u1ebfn, b\u1ea1n c\u00f3 th\u1ec3 gi\u1ea3m Ki\u1ec3m so\u00e1t c\u00f4ng su\u1ea5t truy\u1ec1n \u0111\u1ec3 gi\u1edbi h\u1ea1n ph\u1ea1m vi c\u1ee7a n\u00f3. M\u1eb7c d\u00f9 \u0111i\u1ec1u n\u00e0y s\u1ebd kh\u00f4ng ng\u0103n ch\u1eb7n nh\u1eefng k\u1ebb x\u00e2m nh\u1eadp quy\u1ebft t\u00e2m b\u1eb1ng \u0103ng-ten \u0111\u01b0\u1ee3c t\u0103ng c\u01b0\u1eddng, nh\u01b0ng t\u1ed1t h\u01a1n l\u00e0 kh\u00f4ng n\u00ean t\u1ea1o \u0111i\u1ec1u ki\u1ec7n d\u1ec5 d\u00e0ng cho ch\u00fang.<\/p>\n\n\n\n

H\u00e3y nh\u1edb r\u1eb1ng, khi s\u1ef1 ph\u1ee5 thu\u1ed9c c\u1ee7a ch\u00fang ta v\u00e0o k\u1ebft n\u1ed1i k\u1ef9 thu\u1eadt s\u1ed1 t\u0103ng l\u00ean, t\u1ea7m quan tr\u1ecdng c\u1ee7a b\u1ea3o m\u1eadt m\u1ea1ng c\u0169ng t\u0103ng theo. \u0110\u1ea3m b\u1ea3o b\u1ea1n th\u01b0\u1eddng xuy\u00ean xem x\u00e9t v\u00e0 c\u1eadp nh\u1eadt c\u00e0i \u0111\u1eb7t b\u1ea3o m\u1eadt \u0111\u1ec3 b\u1ea3o v\u1ec7 mi\u1ec1n k\u1ef9 thu\u1eadt s\u1ed1 c\u1ee7a m\u00ecnh.<\/p>","protected":false},"excerpt":{"rendered":"

WiFi \u0111\u00e3 c\u00e1ch m\u1ea1ng h\u00f3a cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y c\u1ee7a ch\u00fang ta, mang \u0111\u1ebfn cho ch\u00fang ta s\u1ef1 ti\u1ec7n l\u1ee3i khi truy c\u1eadp th\u00f4ng tin ngay l\u1eadp t\u1ee9c v\u00e0 t\u00ednh linh ho\u1ea1t khi l\u00e0m vi\u1ec7c t\u1eeb h\u1ea7u nh\u01b0 m\u1ecdi v\u1ecb tr\u00ed. Tuy nhi\u00ean, c\u0169ng gi\u1ed1ng nh\u01b0 ch\u00fang ta b\u1ea3o v\u1ec7 ng\u00f4i nh\u00e0 c\u1ee7a m\u00ecnh\u2026 Ti\u1ebfp t\u1ee5c \u0111\u1ecdc C\u00e1ch b\u1ea3o v\u1ec7 WiFi t\u1ea1i nh\u00e0 c\u1ee7a b\u1ea1n<\/span><\/a><\/p>","protected":false},"author":3,"featured_media":2374,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39],"tags":[],"class_list":["post-2373","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-wifi","entry"],"yoast_head":"\n7 Essential Steps to Secure Your Home WiFi Network<\/title>\n<meta name=\"description\" content=\"Boost home network security with expert tips. Change router credentials, enable firewalls, and more to shield your WiFi from threats.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/securitybriefing.net\/vi\/wifi\/cach-bao-ve-wifi-nha-cua-ban\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"7 Essential Steps to Secure Your Home WiFi Network\" \/>\n<meta property=\"og:description\" content=\"Boost home network security with expert tips. 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