{"id":3254,"date":"2026-02-04T00:00:20","date_gmt":"2026-02-03T17:00:20","guid":{"rendered":"https:\/\/technest.com.vn\/?p=3254"},"modified":"2026-01-28T10:10:04","modified_gmt":"2026-01-28T03:10:04","slug":"bao-mat-ung-dung-web","status":"publish","type":"post","link":"https:\/\/technest.com.vn\/vi\/bao-mat-ung-dung-web\/","title":{"rendered":"B\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web: T\u1ea7m quan tr\u1ecdng v\u00e0 chi\u1ebfn l\u01b0\u1ee3c"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">Trong k\u1ef7 nguy\u00ean chuy\u1ec3n \u0111\u1ed5i s\u1ed1 m\u1ea1nh m\u1ebd, \u1ee9ng d\u1ee5ng web \u0111\u00e3 tr\u1edf th\u00e0nh &#8220;tr\u00e1i tim&#8221; c\u1ee7a m\u1ecdi ho\u1ea1t \u0111\u1ed9ng kinh doanh, t\u1eeb th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, ng\u00e2n h\u00e0ng tr\u1ef1c tuy\u1ebfn \u0111\u1ebfn qu\u1ea3n l\u00fd d\u1eef li\u1ec7u doanh nghi\u1ec7p. Tuy nhi\u00ean, s\u1ef1 ti\u1ec7n l\u1ee3i n\u00e0y c\u0169ng \u0111i k\u00e8m v\u1edbi nh\u1eefng r\u1ee7i ro ti\u1ec1m t\u00e0ng khi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng ng\u00e0y c\u00e0ng tinh vi. <\/span><a title=\"B\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web\" href=\"https:\/\/technest.com.vn\/vi\/bao-mat-ung-dung-web\/\"><b>B\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web<\/b><\/a><span style=\"font-weight: 400;\"> kh\u00f4ng c\u00f2n l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn, m\u00e0 l\u00e0 m\u1ed9t y\u00eau c\u1ea7u s\u1ed1ng c\u00f2n \u0111\u1ec3 b\u1ea3o v\u1ec7 uy t\u00edn v\u00e0 t\u00e0i ch\u00ednh c\u1ee7a t\u1ed5 ch\u1ee9c.<\/span><\/p>\n<h2><b>B\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web l\u00e0 g\u00ec?<\/b><\/h2>\n<p><b>B\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web<\/b><span style=\"font-weight: 400;\"> (Web Application Security) l\u00e0 m\u1ed9t nh\u00e1nh c\u1ee7a b\u1ea3o m\u1eadt th\u00f4ng tin t\u1eadp trung c\u1ee5 th\u1ec3 v\u00e0o vi\u1ec7c b\u1ea3o v\u1ec7 c\u00e1c trang web, \u1ee9ng d\u1ee5ng web v\u00e0 d\u1ecbch v\u1ee5 web kh\u1ecfi c\u00e1c m\u1ed1i \u0111e d\u1ecda an ninh m\u1ea1ng. Qu\u00e1 tr\u00ecnh n\u00e0y bao g\u1ed3m vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c r\u00e0o c\u1ea3n k\u1ef9 thu\u1eadt, quy tr\u00ecnh ki\u1ec3m so\u00e1t v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p l\u1eadp tr\u00ecnh an to\u00e0n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng \u1ee9ng d\u1ee5ng ho\u1ea1t \u0111\u1ed9ng \u0111\u00fang ch\u1ee9c n\u0103ng m\u00e0 kh\u00f4ng b\u1ecb can thi\u1ec7p tr\u00e1i ph\u00e9p.<\/span><\/p>\n<figure id=\"attachment_3255\" aria-describedby=\"caption-attachment-3255\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3255 size-full\" title=\"B\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web l\u00e0 g\u00ec?\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-1.webp\" alt=\"B\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web l\u00e0 g\u00ec?\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-1.webp 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-1-300x200.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-3255\" class=\"wp-caption-text\">B\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web l\u00e0 g\u00ec?<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">Hi\u1ec3u m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, b\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web gi\u1ed1ng nh\u01b0 vi\u1ec7c thi\u1ebft k\u1ebf m\u1ed9t ph\u00e1o \u0111\u00e0i v\u1eefng ch\u1eafc cho ng\u00f4i nh\u00e0 s\u1ed1 c\u1ee7a b\u1ea1n. N\u00f3 kh\u00f4ng ch\u1ec9 d\u1eebng l\u1ea1i \u1edf vi\u1ec7c kh\u00f3a c\u1eeda (m\u1eadt kh\u1ea9u) m\u00e0 c\u00f2n bao g\u1ed3m vi\u1ec7c ki\u1ec3m tra danh t\u00ednh ng\u01b0\u1eddi v\u00e0o, gi\u00e1m s\u00e1t h\u00e0nh vi b\u00ean trong v\u00e0 x\u00e2y d\u1ef1ng t\u01b0\u1eddng th\u00e0nh \u0111\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c \u0111\u00f2n t\u1ea5n c\u00f4ng t\u1eeb b\u00ean ngo\u00e0i. M\u1ee5c ti\u00eau cu\u1ed1i c\u00f9ng l\u00e0 b\u1ea3o v\u1ec7 t\u00ednh to\u00e0n v\u1eb9n, t\u00ednh b\u1ea3o m\u1eadt v\u00e0 t\u00ednh kh\u1ea3 d\u1ee5ng c\u1ee7a d\u1eef li\u1ec7u.<\/span><\/p>\n<h2><b>T\u1ea1i sao c\u1ea7n b\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Vi\u1ec7c l\u01a1 l\u00e0 an ninh m\u1ea1ng c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn nh\u1eefng h\u1eadu qu\u1ea3 th\u1ea3m kh\u1ed1c m\u00e0 m\u1ed9t doanh nghi\u1ec7p c\u00f3 th\u1ec3 m\u1ea5t nhi\u1ec1u n\u0103m m\u1edbi ph\u1ee5c h\u1ed3i \u0111\u01b0\u1ee3c. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 nh\u1eefng l\u00fd do ch\u00ednh t\u1ea1i sao b\u1ea1n c\u1ea7n \u01b0u ti\u00ean b\u1ea3o m\u1eadt ngay t\u1eeb kh\u00e2u ph\u00e1t tri\u1ec3n:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>B\u1ea3o v\u1ec7 d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng:<\/b><span style=\"font-weight: 400;\"> Th\u00f4ng tin c\u00e1 nh\u00e2n, s\u1ed1 th\u1ebb t\u00edn d\u1ee5ng v\u00e0 b\u1ec7nh \u00e1n l\u00e0 nh\u1eefng m\u1ee5c ti\u00eau h\u00e0ng \u0111\u1ea7u c\u1ee7a tin t\u1eb7c. R\u00f2 r\u1ec9 d\u1eef li\u1ec7u s\u1ebd d\u1eabn \u0111\u1ebfn c\u00e1c v\u1ea5n \u0111\u1ec1 ph\u00e1p l\u00fd nghi\u00eam tr\u1ecdng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Duy tr\u00ec uy t\u00edn th\u01b0\u01a1ng hi\u1ec7u:<\/b><span style=\"font-weight: 400;\"> Kh\u00e1ch h\u00e0ng s\u1ebd kh\u00f4ng bao gi\u1edd quay l\u1ea1i m\u1ed9t trang web t\u1eebng b\u1ecb hack ho\u1eb7c l\u00e0m l\u1ed9 th\u00f4ng tin c\u1ee7a h\u1ecd. Ni\u1ec1m tin l\u00e0 th\u1ee9 \u0111\u1eaft gi\u00e1 nh\u1ea5t trong kinh doanh.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Tr\u00e1nh t\u1ed5n th\u1ea5t t\u00e0i ch\u00ednh:<\/b><span style=\"font-weight: 400;\"> Chi ph\u00ed \u0111\u1ec3 kh\u1eafc ph\u1ee5c h\u1eadu qu\u1ea3 sau m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng (ti\u1ec1n chu\u1ed9c, ti\u1ec1n ph\u1ea1t, chi ph\u00ed v\u1eadn h\u00e0nh \u0111\u00ecnh tr\u1ec7) th\u01b0\u1eddng cao g\u1ea5p nhi\u1ec1u l\u1ea7n chi ph\u00ed \u0111\u1ea7u t\u01b0 v\u00e0o b\u1ea3o m\u1eadt ban \u0111\u1ea7u.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Tu\u00e2n th\u1ee7 ph\u00e1p lu\u1eadt:<\/b><span style=\"font-weight: 400;\"> C\u00e1c quy \u0111\u1ecbnh nh\u01b0 GDPR, PCI DSS hay Lu\u1eadt An ninh m\u1ea1ng Vi\u1ec7t Nam y\u00eau c\u1ea7u c\u00e1c t\u1ed5 ch\u1ee9c ph\u1ea3i c\u00f3 bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u ng\u01b0\u1eddi d\u00f9ng nghi\u00eam ng\u1eb7t.<\/span><\/li>\n<\/ul>\n<h2><b>C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u1ed5 bi\u1ebfn<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng hi\u1ec7u qu\u1ea3, tr\u01b0\u1edbc ti\u00ean ch\u00fang ta c\u1ea7n hi\u1ec3u r\u00f5 \u0111\u1ed1i th\u1ee7 c\u1ee7a m\u00ecnh l\u00e0 ai v\u00e0 ch\u00fang t\u1ea5n c\u00f4ng b\u1eb1ng c\u00e1ch n\u00e0o. C\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web th\u01b0\u1eddng xu\u1ea5t ph\u00e1t t\u1eeb sai s\u00f3t trong m\u00e3 ngu\u1ed3n ho\u1eb7c c\u1ea5u h\u00ecnh m\u00e1y ch\u1ee7 kh\u00f4ng ch\u00ednh x\u00e1c.<\/span><\/p>\n<figure id=\"attachment_3256\" aria-describedby=\"caption-attachment-3256\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3256 size-full\" title=\"C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u1ed5 bi\u1ebfn\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-2.webp\" alt=\"C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u1ed5 bi\u1ebfn\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-2.webp 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-2-300x200.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-3256\" class=\"wp-caption-text\">C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng ph\u1ed5 bi\u1ebfn<\/figcaption><\/figure>\n<p><span style=\"font-weight: 400;\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 chi ti\u1ebft v\u1ec1 c\u00e1c h\u00ecnh th\u1ee9c t\u1ea5n c\u00f4ng nguy hi\u1ec3m nh\u1ea5t hi\u1ec7n nay m\u00e0 m\u1ecdi qu\u1ea3n tr\u1ecb vi\u00ean c\u1ea7n l\u01b0u \u00fd:<\/span><\/p>\n<h3><b>Cross-Site Scripting (XSS)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">XSS l\u00e0 lo\u1ea1i t\u1ea5n c\u00f4ng m\u00e0 k\u1ebb t\u1ea5n c\u00f4ng ch\u00e8n c\u00e1c \u0111o\u1ea1n m\u00e3 k\u1ecbch b\u1ea3n \u0111\u1ed9c h\u1ea1i (th\u01b0\u1eddng l\u00e0 JavaScript) v\u00e0o c\u00e1c trang web \u0111\u00e1ng tin c\u1eady. Khi ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp trang web \u0111\u00f3, m\u00e3 \u0111\u1ed9c s\u1ebd th\u1ef1c thi tr\u00ean tr\u00ecnh duy\u1ec7t c\u1ee7a h\u1ecd, cho ph\u00e9p k\u1ebb t\u1ea5n c\u00f4ng \u0111\u00e1nh c\u1eafp cookie, phi\u00ean l\u00e0m vi\u1ec7c (session tokens) ho\u1eb7c chuy\u1ec3n h\u01b0\u1edbng ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn trang web l\u1eeba \u0111\u1ea3o.<\/span><\/p>\n<h3><b>SQL Injection<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng l\u1ed7 h\u1ed5ng kinh \u0111i\u1ec3n v\u00e0 nguy hi\u1ec3m nh\u1ea5t. K\u1ebb t\u1ea5n c\u00f4ng ch\u00e8n c\u00e1c c\u00e2u l\u1ec7nh SQL \u0111\u1ed9c h\u1ea1i v\u00e0o c\u00e1c tr\u01b0\u1eddng nh\u1eadp li\u1ec7u (nh\u01b0 \u00f4 t\u00ecm ki\u1ebfm, \u0111\u0103ng nh\u1eadp) \u0111\u1ec3 \u0111\u00e1nh l\u1eeba c\u01a1 s\u1edf d\u1eef li\u1ec7u. N\u1ebfu th\u00e0nh c\u00f4ng, ch\u00fang c\u00f3 th\u1ec3 xem, s\u1eeda \u0111\u1ed5i ho\u1eb7c x\u00f3a to\u00e0n b\u1ed9 d\u1eef li\u1ec7u trong database, th\u1eadm ch\u00ed chi\u1ebfm quy\u1ec1n \u0111i\u1ec1u khi\u1ec3n m\u00e1y ch\u1ee7.<\/span><\/p>\n<h3><b>XXE (XML External Entity)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">T\u1ea5n c\u00f4ng XXE x\u1ea3y ra khi \u1ee9ng d\u1ee5ng web x\u1eed l\u00fd \u0111\u1ea7u v\u00e0o XML kh\u00f4ng an to\u00e0n. K\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 ch\u00e8n c\u00e1c tham chi\u1ebfu th\u1ef1c th\u1ec3 b\u00ean ngo\u00e0i v\u00e0o t\u00e0i li\u1ec7u XML, t\u1eeb \u0111\u00f3 \u0111\u1ecdc c\u00e1c t\u1ec7p n\u1ed9i b\u1ed9 tr\u00ean m\u00e1y ch\u1ee7, th\u1ef1c hi\u1ec7n qu\u00e9t c\u1ed5ng trong m\u1ea1ng n\u1ed9i b\u1ed9 ho\u1eb7c g\u00e2y ra t\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 (DoS).<\/span><\/p>\n<h3><b>DDoS (T\u1ea5n c\u00f4ng t\u1eeb ch\u1ed1i d\u1ecbch v\u1ee5 ph\u00e2n t\u00e1n)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">DDoS kh\u00f4ng \u0111\u00e1nh v\u00e0o l\u1ed7 h\u1ed5ng m\u00e3 ngu\u1ed3n m\u00e0 \u0111\u00e1nh v\u00e0o kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i c\u1ee7a h\u1ec7 th\u1ed1ng. B\u1eb1ng c\u00e1ch huy \u0111\u1ed9ng m\u1ed9t m\u1ea1ng l\u01b0\u1edbi m\u00e1y t\u00ednh ma (botnet) g\u1eedi h\u00e0ng tri\u1ec7u truy v\u1ea5n c\u00f9ng l\u00fac, k\u1ebb t\u1ea5n c\u00f4ng l\u00e0m t\u00ea li\u1ec7t m\u00e1y ch\u1ee7, khi\u1ebfn ng\u01b0\u1eddi d\u00f9ng th\u1ef1c s\u1ef1 kh\u00f4ng th\u1ec3 truy c\u1eadp v\u00e0o \u1ee9ng d\u1ee5ng web.<\/span><\/p>\n<h3><b>Ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i (Malware)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">K\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 l\u1ee3i d\u1ee5ng c\u00e1c l\u1ed7 h\u1ed5ng \u0111\u1ec3 t\u1ea3i ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i l\u00ean m\u00e1y ch\u1ee7 web. Malware n\u00e0y c\u00f3 th\u1ec3 l\u00e0 ransomware m\u00e3 h\u00f3a d\u1eef li\u1ec7u \u0111\u00f2i ti\u1ec1n chu\u1ed9c, ho\u1eb7c c\u00e1c con backdoor cho ph\u00e9p ch\u00fang duy tr\u00ec quy\u1ec1n truy c\u1eadp l\u00e2u d\u00e0i v\u00e0o h\u1ec7 th\u1ed1ng m\u00e0 kh\u00f4ng b\u1ecb ph\u00e1t hi\u1ec7n.<\/span><\/p>\n<h2><b>C\u00e1ch b\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web hi\u1ec7u qu\u1ea3<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Sau khi \u0111\u00e3 nh\u1eadn di\u1ec7n \u0111\u01b0\u1ee3c c\u00e1c m\u1ed1i \u0111e d\u1ecda, b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 thi\u1ebft l\u1eadp c\u00e1c l\u1edbp ph\u00f2ng th\u1ee7 \u0111a t\u1ea7ng. M\u1ed9t chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web hi\u1ec7u qu\u1ea3 ph\u1ea3i k\u1ebft h\u1ee3p gi\u1eefa c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i v\u00e0 quy tr\u00ecnh qu\u1ea3n l\u00fd ch\u1eb7t ch\u1ebd.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">D\u01b0\u1edbi \u0111\u00e2y l\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt c\u1ed1t l\u00f5i gi\u00fap b\u1ea1n c\u1ee7ng c\u1ed1 s\u1ee9c m\u1ea1nh cho h\u1ec7 th\u1ed1ng c\u1ee7a m\u00ecnh:<\/span><\/p>\n<h3><b>S\u1eed d\u1ee5ng HTTPS\/SSL<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Giao th\u1ee9c HTTPS m\u00e3 h\u00f3a d\u1eef li\u1ec7u truy\u1ec1n t\u1ea3i gi\u1eefa tr\u00ecnh duy\u1ec7t ng\u01b0\u1eddi d\u00f9ng v\u00e0 m\u00e1y ch\u1ee7. \u0110i\u1ec1u n\u00e0y ng\u0103n ch\u1eb7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng &#8220;Man-in-the-Middle&#8221; (ng\u01b0\u1eddi \u0111\u1ee9ng gi\u1eefa) \u0111\u00e1nh ch\u1eb7n th\u00f4ng tin nh\u1ea1y c\u1ea3m. Vi\u1ec7c s\u1edf h\u1eefu ch\u1ee9ng ch\u1ec9 SSL c\u0169ng gi\u00fap t\u0103ng th\u1ee9 h\u1ea1ng SEO v\u00e0 t\u1ea1o ni\u1ec1m tin cho ng\u01b0\u1eddi d\u00f9ng.<\/span><\/p>\n<figure id=\"attachment_3257\" aria-describedby=\"caption-attachment-3257\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3257 size-full\" title=\"S\u1eed d\u1ee5ng HTTPS\/SSL\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-3.webp\" alt=\"S\u1eed d\u1ee5ng HTTPS\/SSL\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-3.webp 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-3-300x200.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-3257\" class=\"wp-caption-text\">S\u1eed d\u1ee5ng HTTPS\/SSL<\/figcaption><\/figure>\n<h3><b>C\u1eadp nh\u1eadt ph\u1ea7n m\u1ec1m th\u01b0\u1eddng xuy\u00ean<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Nhi\u1ec1u cu\u1ed9c t\u1ea5n c\u00f4ng th\u00e0nh c\u00f4ng ch\u1ec9 v\u00ec doanh nghi\u1ec7p s\u1eed d\u1ee5ng c\u00e1c phi\u00ean b\u1ea3n CMS (nh\u01b0 <strong>WordPress<\/strong>, <strong><a title=\"Magento\" href=\"https:\/\/vi.wikipedia.org\/wiki\/Magento\" target=\"_blank\" rel=\"nofollow noopener\">Magento<\/a><\/strong>) ho\u1eb7c th\u01b0 vi\u1ec7n m\u00e3 ngu\u1ed3n c\u0169 \u0111\u00e3 l\u1ed7i th\u1eddi. H\u00e3y lu\u00f4n \u0111\u1ea3m b\u1ea3o h\u1ec7 \u0111i\u1ec1u h\u00e0nh, m\u00e1y ch\u1ee7 web v\u00e0 c\u00e1c framework \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt b\u1ea3n v\u00e1 b\u1ea3o m\u1eadt (security patches) m\u1edbi nh\u1ea5t ngay khi ch\u00fang \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh.<\/span><\/p>\n<h3><b>Sao l\u01b0u d\u1eef li\u1ec7u t\u1ef1 \u0111\u1ed9ng<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Ph\u00f2ng b\u1ec7nh h\u01a1n ch\u1eefa b\u1ec7nh, nh\u01b0ng b\u1ea1n c\u0169ng c\u1ea7n c\u00f3 k\u1ebf ho\u1ea1ch cho t\u00ecnh hu\u1ed1ng x\u1ea5u nh\u1ea5t. Vi\u1ec7c sao l\u01b0u d\u1eef li\u1ec7u t\u1ef1 \u0111\u1ed9ng v\u00e0 l\u01b0u tr\u1eef \u1edf m\u1ed9t n\u01a1i \u0111\u1ed9c l\u1eadp (nh\u01b0 Cloud Storage) s\u1ebd gi\u00fap b\u1ea1n kh\u00f4i ph\u1ee5c h\u1ec7 th\u1ed1ng nhanh ch\u00f3ng n\u1ebfu b\u1ecb t\u1ea5n c\u00f4ng ransomware ho\u1eb7c x\u00f3a d\u1eef li\u1ec7u.<\/span><\/p>\n<h3><b>D\u00f9ng Web Application Firewall (WAF)<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">WAF gi\u1ed1ng nh\u01b0 m\u1ed9t b\u1ed9 l\u1ecdc th\u00f4ng minh \u0111\u1ee9ng tr\u01b0\u1edbc \u1ee9ng d\u1ee5ng web c\u1ee7a b\u1ea1n. N\u00f3 ki\u1ec3m tra t\u1ea5t c\u1ea3 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp HTTP\/HTTPS v\u00e0 ng\u0103n ch\u1eb7n c\u00e1c y\u00eau c\u1ea7u \u0111\u1ed9c h\u1ea1i nh\u01b0 SQL Injection hay XSS tr\u01b0\u1edbc khi ch\u00fang ch\u1ea1m t\u1edbi m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n. C\u00e1c gi\u1ea3i ph\u00e1p WAF hi\u1ec7n \u0111\u1ea1i c\u00f2n c\u00f3 kh\u1ea3 n\u0103ng ng\u0103n ch\u1eb7n bot v\u00e0 gi\u1ea3m thi\u1ec3u DDoS.<\/span><\/p>\n<figure id=\"attachment_3258\" aria-describedby=\"caption-attachment-3258\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3258 size-full\" title=\"D\u00f9ng Web Application Firewall (WAF)\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-4.webp\" alt=\"D\u00f9ng Web Application Firewall (WAF)\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-4.webp 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-4-300x200.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-3258\" class=\"wp-caption-text\">D\u00f9ng Web Application Firewall (WAF)<\/figcaption><\/figure>\n<h3><b>B\u1ea3o v\u1ec7 c\u01a1 s\u1edf d\u1eef li\u1ec7u an to\u00e0n<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">C\u01a1 s\u1edf d\u1eef li\u1ec7u l\u00e0 m\u1ee5c ti\u00eau cu\u1ed1i c\u00f9ng c\u1ee7a tin t\u1eb7c. H\u00e3y th\u1ef1c hi\u1ec7n nguy\u00ean t\u1eafc &#8220;quy\u1ec1n h\u1ea1n t\u1ed1i thi\u1ec3u&#8221;, ch\u1ec9 cho ph\u00e9p \u1ee9ng d\u1ee5ng web truy c\u1eadp v\u00e0o nh\u1eefng b\u1ea3ng d\u1eef li\u1ec7u c\u1ea7n thi\u1ebft. \u0110\u1ed3ng th\u1eddi, m\u00e3 h\u00f3a d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m ngay trong DB v\u00e0 lu\u00f4n l\u1ecdc k\u1ef9 (sanitize) m\u1ecdi \u0111\u1ea7u v\u00e0o t\u1eeb ng\u01b0\u1eddi d\u00f9ng.<\/span><\/p>\n<h2><b>R\u1ee7i ro b\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web ph\u1ed5 bi\u1ebfn<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">D\u00f9 ch\u00fang ta c\u00f3 trang b\u1ecb nhi\u1ec1u l\u1edbp b\u1ea3o m\u1eadt, c\u00e1c r\u1ee7i ro m\u1edbi v\u1eabn lu\u00f4n xu\u1ea5t hi\u1ec7n do s\u1ef1 thay \u0111\u1ed5i c\u1ee7a c\u00f4ng ngh\u1ec7 v\u00e0 th\u00f3i quen ng\u01b0\u1eddi d\u00f9ng. Hi\u1ec3u r\u00f5 c\u00e1c r\u1ee7i ro n\u00e0y gi\u00fap doanh nghi\u1ec7p ch\u1ee7 \u0111\u1ed9ng h\u01a1n trong vi\u1ec7c ph\u00f2ng ng\u1eeba.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>L\u1ed7 h\u1ed5ng c\u1ea5u h\u00ecnh sai (Security Misconfiguration):<\/b><span style=\"font-weight: 400;\"> \u0110\u00e2y l\u00e0 r\u1ee7i ro ph\u1ed5 bi\u1ebfn nh\u1ea5t khi c\u00e1c qu\u1ea3n tr\u1ecb vi\u00ean \u0111\u1ec3 l\u1ea1i m\u1eadt kh\u1ea9u m\u1eb7c \u0111\u1ecbnh, m\u1edf c\u00e1c c\u1ed5ng (port) kh\u00f4ng c\u1ea7n thi\u1ebft ho\u1eb7c hi\u1ec3n th\u1ecb th\u00f4ng b\u00e1o l\u1ed7i chi ti\u1ebft ch\u1ee9a th\u00f4ng tin h\u1ec7 th\u1ed1ng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ki\u1ec3m so\u00e1t truy c\u1eadp k\u00e9m (Broken Access Control):<\/b><span style=\"font-weight: 400;\"> Ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o c\u00e1c trang qu\u1ea3n tr\u1ecb ho\u1eb7c d\u1eef li\u1ec7u c\u1ee7a ng\u01b0\u1eddi d\u00f9ng kh\u00e1c do h\u1ec7 th\u1ed1ng kh\u00f4ng ki\u1ec3m tra quy\u1ec1n h\u1ea1n m\u1ed9t c\u00e1ch ch\u1eb7t ch\u1ebd.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>S\u1eed d\u1ee5ng th\u00e0nh ph\u1ea7n c\u00f3 l\u1ed7 h\u1ed5ng \u0111\u00e3 bi\u1ebft:<\/b><span style=\"font-weight: 400;\"> Vi\u1ec7c t\u00edch h\u1ee3p qu\u00e1 nhi\u1ec1u th\u01b0 vi\u1ec7n m\u00e3 ngu\u1ed3n m\u1edf m\u00e0 kh\u00f4ng ki\u1ec3m so\u00e1t ngu\u1ed3n g\u1ed1c khi\u1ebfn \u1ee9ng d\u1ee5ng d\u1ec5 b\u1ecb t\u1ed5n th\u01b0\u01a1ng t\u1eeb b\u00ean trong.<\/span><\/li>\n<\/ul>\n<h2><b>Chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web quan tr\u1ecdng<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">M\u1ed9t chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o m\u1eadt th\u00e0nh c\u00f4ng kh\u00f4ng ch\u1ec9 d\u1ef1a v\u00e0o c\u00f4ng c\u1ee5, m\u00e0 d\u1ef1a v\u00e0o t\u01b0 duy &#8220;B\u1ea3o m\u1eadt ngay t\u1eeb \u0111\u1ea7u&#8221; (Security by Design). \u0110i\u1ec1u n\u00e0y \u0111\u00f2i h\u1ecfi s\u1ef1 ph\u1ed1i h\u1ee3p gi\u1eefa b\u1ed9 ph\u1eadn l\u1eadp tr\u00ecnh v\u00e0 b\u1ed9 ph\u1eadn an ninh m\u1ea1ng.<\/span><\/p>\n<figure id=\"attachment_3259\" aria-describedby=\"caption-attachment-3259\" style=\"width: 600px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3259 size-full\" title=\"Chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web quan tr\u1ecdng\" src=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-5.webp\" alt=\"Chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web quan tr\u1ecdng\" width=\"600\" height=\"400\" srcset=\"https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-5.webp 600w, https:\/\/technest.com.vn\/wp-content\/uploads\/2026\/01\/bao-mat-ung-dung-web-5-300x200.webp 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/><figcaption id=\"caption-attachment-3259\" class=\"wp-caption-text\">Chi\u1ebfn l\u01b0\u1ee3c b\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web quan tr\u1ecdng<\/figcaption><\/figure>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>\u0110\u00e0o t\u1ea1o \u0111\u1ed9i ng\u0169 l\u1eadp tr\u00ecnh:<\/b><span style=\"font-weight: 400;\"> L\u1eadp tr\u00ecnh vi\u00ean c\u1ea7n hi\u1ec3u v\u1ec1 c\u00e1c l\u1ed7 h\u1ed5ng b\u1ea3o m\u1eadt \u0111\u1ec3 vi\u1ebft m\u00e3 s\u1ea1ch v\u00e0 an to\u00e0n ngay t\u1eeb d\u00f2ng code \u0111\u1ea7u ti\u00ean.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ki\u1ec3m th\u1eed b\u1ea3o m\u1eadt th\u01b0\u1eddng xuy\u00ean (Penetration Testing):<\/b><span style=\"font-weight: 400;\"> H\u00e3y thu\u00ea c\u00e1c chuy\u00ean gia b\u1ea3o m\u1eadt \u0111\u00f3ng gi\u1ea3 tin t\u1eb7c \u0111\u1ec3 t\u1ea5n c\u00f4ng v\u00e0o h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n. Vi\u1ec7c n\u00e0y gi\u00fap t\u00ecm ra nh\u1eefng &#8220;l\u1ed7 h\u1ed5ng&#8221; m\u00e0 c\u00e1c c\u00f4ng c\u1ee5 qu\u00e9t t\u1ef1 \u0111\u1ed9ng th\u01b0\u1eddng b\u1ecf s\u00f3t.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>X\u00e2y d\u1ef1ng quy tr\u00ecnh ph\u1ea3n \u1ee9ng s\u1ef1 c\u1ed1:<\/b><span style=\"font-weight: 400;\"> Khi c\u00f3 s\u1ef1 c\u1ed1 x\u1ea3y ra, ai l\u00e0 ng\u01b0\u1eddi x\u1eed l\u00fd? Quy tr\u00ecnh c\u00f4 l\u1eadp m\u00e1y ch\u1ee7 b\u1ecb hack nh\u01b0 th\u1ebf n\u00e0o? M\u1ed9t k\u1ecbch b\u1ea3n \u1ee9ng ph\u00f3 s\u1eb5n c\u00f3 s\u1ebd gi\u1ea3m thi\u1ec3u t\u1ed1i \u0111a thi\u1ec7t h\u1ea1i.<\/span><\/li>\n<\/ol>\n<h2><b>C\u00e1ch ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng \u1ee9ng d\u1ee5ng web<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Cu\u1ed9c chi\u1ebfn gi\u1eefa b\u1ea3o m\u1eadt v\u00e0 tin t\u1eb7c l\u00e0 m\u1ed9t cu\u1ed9c ch\u1ea1y \u0111ua v\u0169 trang kh\u00f4ng h\u1ed3i k\u1ebft. \u0110\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng hi\u1ec7u qu\u1ea3, b\u1ea1n c\u1ea7n \u00e1p d\u1ee5ng m\u00f4 h\u00ecnh ph\u00f2ng th\u1ee7 theo chi\u1ec1u s\u00e2u (Defense in Depth).<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng tin t\u01b0\u1edfng d\u1eef li\u1ec7u \u0111\u1ea7u v\u00e0o:<\/b><span style=\"font-weight: 400;\"> Lu\u00f4n coi m\u1ecdi th\u00f4ng tin t\u1eeb ng\u01b0\u1eddi d\u00f9ng g\u1eedi l\u00ean l\u00e0 c\u00f3 nguy c\u01a1 g\u00e2y h\u1ea1i.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Ki\u1ec3m so\u00e1t d\u1eef li\u1ec7u ch\u1eb7t ch\u1ebd:<\/b><span style=\"font-weight: 400;\"> Th\u1ef1c hi\u1ec7n x\u00e1c th\u1ef1c \u0111\u1ea7u v\u00e0o (Input Validation) v\u00e0 m\u00e3 h\u00f3a \u0111\u1ea7u ra (Output Encoding) cho t\u1ea5t c\u1ea3 c\u00e1c tr\u01b0\u1eddng d\u1eef li\u1ec7u.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Gi\u00e1m s\u00e1t th\u1eddi gian th\u1ef1c:<\/b><span style=\"font-weight: 400;\"> S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 theo d\u00f5i \u0111\u1ec3 ph\u00e1t hi\u1ec7n v\u00e0 ng\u0103n ch\u1eb7n ngay l\u1eadp t\u1ee9c c\u00e1c h\u00e0nh vi truy c\u1eadp b\u1ea5t th\u01b0\u1eddng.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><b>Duy tr\u00ec b\u1ea3o m\u1eadt li\u00ean t\u1ee5c:<\/b><span style=\"font-weight: 400;\"> B\u1ea3o m\u1eadt kh\u00f4ng ph\u1ea3i l\u00e0 vi\u1ec7c l\u00e0m m\u1ed9t l\u1ea7n; c\u1ea7n ki\u1ec3m tra v\u00e0 \u0111\u00e1nh gi\u00e1 h\u1ec7 th\u1ed1ng \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 \u0111\u1ed1i ph\u00f3 v\u1edbi c\u00e1c m\u1ed1i \u0111e d\u1ecda m\u1edbi.<\/span><\/li>\n<\/ul>\n<p><b>B\u1ea3o m\u1eadt \u1ee9ng d\u1ee5ng web<\/b><span style=\"font-weight: 400;\"> kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t r\u00e0o c\u1ea3n k\u1ef9 thu\u1eadt m\u00e0 l\u00e0 n\u1ec1n t\u1ea3ng c\u1ed1t l\u00f5i \u0111\u1ec3 duy tr\u00ec s\u1ef1 s\u1ed1ng c\u00f2n c\u1ee7a doanh nghi\u1ec7p trong k\u1ef7 nguy\u00ean s\u1ed1. Vi\u1ec7c hi\u1ec3u r\u00f5 c\u00e1c l\u1ed7 h\u1ed5ng nh\u01b0 SQL Injection hay XSS v\u00e0 ch\u1ee7 \u0111\u1ed9ng tri\u1ec3n khai c\u00e1c gi\u1ea3i ph\u00e1p nh\u01b0 WAF, SSL s\u1ebd gi\u00fap b\u1ea1n b\u1ea3o v\u1ec7 t\u00e0i s\u1ea3n d\u1eef li\u1ec7u qu\u00fd gi\u00e1. H\u00e3y nh\u1edb r\u1eb1ng, an ninh m\u1ea1ng l\u00e0 m\u1ed9t h\u00e0nh tr\u00ecnh li\u00ean t\u1ee5c, \u0111\u00f2i h\u1ecfi s\u1ef1 c\u1ea3nh gi\u00e1c v\u00e0 c\u1eadp nh\u1eadt kh\u00f4ng ng\u1eebng \u0111\u1ec3 \u0111\u1ed1i \u0111\u1ea7u v\u1edbi nh\u1eefng th\u00e1ch th\u1ee9c m\u1edbi.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Trong k\u1ef7 nguy\u00ean chuy\u1ec3n \u0111\u1ed5i s\u1ed1 m\u1ea1nh m\u1ebd, \u1ee9ng d\u1ee5ng web \u0111\u00e3 tr\u1edf th\u00e0nh &#8220;tr\u00e1i tim&#8221; c\u1ee7a m\u1ecdi ho\u1ea1t \u0111\u1ed9ng kinh doanh, t\u1eeb th\u01b0\u01a1ng m\u1ea1i \u0111i\u1ec7n t\u1eed, ng\u00e2n h\u00e0ng tr\u1ef1c tuy\u1ebfn \u0111\u1ebfn qu\u1ea3n l\u00fd d\u1eef li\u1ec7u doanh nghi\u1ec7p. Tuy nhi\u00ean, s\u1ef1 ti\u1ec7n l\u1ee3i n\u00e0y c\u0169ng \u0111i k\u00e8m v\u1edbi nh\u1eefng r\u1ee7i ro ti\u1ec1m t\u00e0ng khi c\u00e1c<\/p>\n","protected":false},"author":1,"featured_media":3262,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/posts\/3254"}],"collection":[{"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/comments?post=3254"}],"version-history":[{"count":2,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/posts\/3254\/revisions"}],"predecessor-version":[{"id":3264,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/posts\/3254\/revisions\/3264"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/media\/3262"}],"wp:attachment":[{"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/media?parent=3254"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/categories?post=3254"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/technest.com.vn\/vi\/wp-json\/wp\/v2\/tags?post=3254"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}