{"id":15050,"date":"2025-08-06T08:09:25","date_gmt":"2025-08-06T02:09:25","guid":{"rendered":"https:\/\/dtasiagroup.com\/defending-your-organization-before-during-and-after-a-cyberattack\/"},"modified":"2025-09-10T10:40:29","modified_gmt":"2025-09-10T04:40:29","slug":"bao-ve-to-chuc-cua-ban-truoc-trong-va-sau-moi-cuoc-tan-cong-mang","status":"publish","type":"post","link":"https:\/\/dtasiagroup.com\/vi\/bao-ve-to-chuc-cua-ban-truoc-trong-va-sau-moi-cuoc-tan-cong-mang\/","title":{"rendered":"B\u1ea3o v\u1ec7 t\u1ed5 ch\u1ee9c c\u1ee7a b\u1ea1n tr\u01b0\u1edbc, trong v\u00e0 sau m\u1ed7i cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng"},"content":{"rendered":"

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N\u1ebfu b\u1ea1n \u0111\u00e3 t\u1eebng l\u00e0m vi\u1ec7c trong l\u0129nh v\u1ef1c CNTT trong l\u00fac x\u1ea3y ra m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng, h\u1eb3n b\u1ea1n bi\u1ebft r\u00f5 c\u1ea3m gi\u00e1c h\u1ee5t h\u1eabng \u1ea5y<\/strong>.
B\u1ea1n nh\u00ecn ch\u1eb1m ch\u1eb1m v\u00e0o m\u00e0n h\u00ecnh, b\u1ea5t l\u1ef1c v\u00e0 ngh\u0129: \u201cL\u1ebd ra m\u00ecnh kh\u00f4ng n\u00ean nh\u1eadn tr\u1ef1c cu\u1ed1i tu\u1ea7n n\u00e0y.\u201d<\/em><\/p>\n

M\u1ecdi chuy\u1ec7n b\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t phi\u1ebfu y\u00eau c\u1ea7u \u0111\u01b0\u1ee3c n\u00e2ng c\u1ea5p: c\u01a1 s\u1edf d\u1eef li\u1ec7u s\u1ea3n xu\u1ea5t kh\u00f4ng th\u1ec3 truy c\u1eadp. K\u1ebft n\u1ed1i t\u1eeb xa th\u00ec th\u1ea5t b\u1ea1i. B\u1ea1n th\u1eed ph\u01b0\u01a1ng th\u1ee9c d\u1ef1 ph\u00f2ng \u2014 giao di\u1ec7n lights-out \u2014 nh\u01b0ng c\u1ea3 n\u00f3 c\u0169ng kh\u00f4ng ph\u1ea3n h\u1ed3i. B\u1ea1n c\u1ed1 g\u1eafng \u0111\u0103ng nh\u1eadp v\u00e0o b\u1ed9 \u0111i\u1ec1u khi\u1ec3n mi\u1ec1n. V\u1eabn kh\u00f4ng \u0111\u01b0\u1ee3c. R\u1ed3i \u0111\u1ebfn c\u00fa s\u1ed1c:
\u201cC\u00e1c t\u1ec7p c\u00e1 nh\u00e2n c\u1ee7a b\u1ea1n \u0111\u00e3 b\u1ecb m\u00e3 h\u00f3a.\u201d<\/em><\/p>\n

Trong kho\u1ea3nh kh\u1eafc \u0111\u00f3, b\u1ea1n \u01b0\u1edbc g\u00ec c\u00f3 th\u1ec3 quay ng\u01b0\u1ee3c th\u1eddi gian \u0111\u1ec3 ng\u0103n ch\u1eb7n m\u1ecdi vi\u1ec7c v\u1eeba x\u1ea3y ra.<\/p>\n

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T\u1ea1i Sao Ch\u00fang Ta C\u1ea7n H\u00ecnh Dung T\u00ecnh Hu\u1ed1ng T\u1ed3i T\u1ec7 Nh\u1ea5t<\/h2>\n

Kh\u00f4ng ai mu\u1ed1n c\u1ee9 m\u00e3i ngh\u0129 \u0111\u1ebfn nh\u1eefng k\u1ecbch b\u1ea3n x\u1ea5u nh\u1ea5t \u2014 nh\u01b0ng vi\u1ec7c h\u00ecnh dung ch\u00fang l\u1ea1i gi\u00fap b\u1ea1n x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c nh\u1eefng l\u1edbp ph\u00f2ng th\u1ee7 \u0111\u00fang \u0111\u1eafn. Gi\u1ed1ng nh\u01b0 th\u1ef1c h\u00e0nh memento mori<\/em> trong tri\u1ebft h\u1ecdc Kh\u1eafc K\u1ef7, \u0111i\u1ec1u n\u00e0y kh\u00f4ng ph\u1ea3i \u0111\u1ec3 nu\u00f4i d\u01b0\u1ee1ng n\u1ed7i s\u1ee3 h\u00e3i v\u1ec1 th\u1ea3m h\u1ecda, m\u00e0 \u0111\u1ec3 tr\u00e2n tr\u1ecdng nh\u1eefng g\u00ec b\u1ea1n \u0111ang c\u00f3 v\u00e0 h\u00e0nh \u0111\u1ed9ng m\u1ed9t c\u00e1ch kh\u00f4n ngoan ngay h\u00f4m nay.<\/p>\n

\u0110\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao vi\u1ec7c suy ngh\u0129 xuy\u00ean su\u1ed1t to\u00e0n b\u1ed9 v\u00f2ng \u0111\u1eddi c\u1ee7a m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng \u2014 tr\u01b0\u1edbc, trong v\u00e0 sau \u2014 l\u1ea1i \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t trong vi\u1ec7c x\u00e2y d\u1ef1ng kh\u1ea3 n\u0103ng ch\u1ed1ng ch\u1ecbu.<\/p>\n

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Giai \u0111o\u1ea1n 1: Tr\u01b0\u1edbc khi x\u1ea3y ra t\u1ea5n c\u00f4ng<\/strong><\/h2>\n

Ph\u00f2ng ng\u1eeba lu\u00f4n l\u00e0 chi\u1ebfn l\u01b0\u1ee3c t\u1ed1t nh\u1ea5t. Nh\u01b0ng ch\u1ec9 ph\u00f2ng ng\u1eeba th\u00f4i th\u00ec ch\u01b0a \u0111\u1ee7 \u2014 v\u00ec kh\u00f4ng c\u00f3 h\u1ec7 th\u1ed1ng n\u00e0o an to\u00e0n tuy\u1ec7t \u0111\u1ed1i 100%. Vi\u1ec7c chu\u1ea9n b\u1ecb c\u1ee7a b\u1ea1n c\u0169ng c\u1ea7n bao g\u1ed3m c\u1ea3 c\u00e1c chi\u1ebfn l\u01b0\u1ee3c khoanh v\u00f9ng v\u00e0 kh\u00f4i ph\u1ee5c. N\u00f3i c\u00e1ch kh\u00e1c, m\u1ed9t tuy\u1ebfn ph\u00f2ng th\u1ee7 v\u1eefng ch\u1eafc b\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u00e2y:<\/p>\n

🧠 \u00c1p d\u1ee5ng t\u01b0 duy Zero Trust<\/h3>\n

H\u00e3y qu\u00ean \u0111i h\u00ecnh \u1ea3nh \u201cl\u00e2u \u0111\u00e0i v\u00e0 h\u00e0o n\u01b0\u1edbc\u201d. M\u00f4i tr\u01b0\u1eddng CNTT ng\u00e0y nay gi\u1ed1ng nh\u01b0 nh\u1eefng khu ch\u1ee3 nh\u1ed9n nh\u1ecbp, n\u01a1i con ng\u01b0\u1eddi, d\u1eef li\u1ec7u v\u00e0 thi\u1ebft b\u1ecb li\u00ean t\u1ee5c ra v\u00e0o. V\u00ec v\u1eady, b\u1ea1n ph\u1ea3i x\u00e1c minh m\u1ecdi th\u1ee9 v\u00e0 kh\u00f4ng m\u1eb7c \u0111\u1ecbnh tin t\u01b0\u1edfng b\u1ea5t k\u1ef3 \u0111i\u1ec1u g\u00ec<\/strong>. \u0110\u00e2y ch\u00ednh l\u00e0 c\u1ed1t l\u00f5i c\u1ee7a Zero Trust. Vi\u1ec7c gi\u00e1m s\u00e1t li\u00ean t\u1ee5c, truy c\u1eadp th\u00edch \u1ee9ng v\u00e0 \u0111\u00e1nh gi\u00e1 r\u1ee7i ro d\u1ef1a tr\u00ean h\u00e0nh vi l\u00e0 v\u00f4 c\u00f9ng c\u1ea7n thi\u1ebft.<\/p>\n

🔁 Xem an ninh nh\u01b0 m\u1ed9t qu\u00e1 tr\u00ecnh li\u00ean t\u1ee5c<\/h3>\n

An ninh kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t d\u1ef1 \u00e1n l\u00e0m m\u1ed9t l\u1ea7n r\u1ed3i th\u00f4i. Theo Microsoft, 98% c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ng\u0103n ch\u1eb7n nh\u1edd c\u00e1c bi\u1ec7n ph\u00e1p c\u01a1 b\u1ea3n<\/strong> \u2014 nh\u01b0 MFA, m\u00e1y tr\u1ea1m truy c\u1eadp \u0111\u1eb7c quy\u1ec1n (PAWs), v\u00e0 v\u00e1 l\u1ed7i th\u01b0\u1eddng xuy\u00ean. Tuy nhi\u00ean, khi m\u00f4i tr\u01b0\u1eddng thay \u0111\u1ed5i, nh\u1eefng bi\u1ec7n ph\u00e1p n\u00e0y c\u0169ng ph\u1ea3i \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 v\u00e0 \u0111i\u1ec1u ch\u1ec9nh li\u00ean t\u1ee5c.<\/p>\n

🎯 T\u1eadp trung v\u00e0o c\u00e1c \u0111i\u1ec3m ngh\u1ebdn (choke points)<\/h3>\n

B\u1ea1n kh\u00f4ng th\u1ec3 b\u1ea3o v\u1ec7 m\u1ecdi th\u1ee9, nh\u01b0ng c\u00f3 th\u1ec3 t\u1eadp trung v\u00e0o nh\u1eefng \u0111\u01b0\u1eddng \u0111i quan tr\u1ecdng m\u00e0 k\u1ebb t\u1ea5n c\u00f4ng th\u01b0\u1eddng d\u1ef1a v\u00e0o. Thay v\u00ec c\u1ed1 g\u1eafng \u201cb\u1ecbt m\u1ecdi l\u1ed7 h\u1ed5ng\u201d, h\u00e3y x\u00e1c \u0111\u1ecbnh c\u00e1c \u0111i\u1ec3m ngh\u1ebdn tr\u1ecdng y\u1ebfu<\/strong> trong m\u00f4i tr\u01b0\u1eddng c\u1ee7a b\u1ea1n v\u00e0 t\u0103ng c\u01b0\u1eddng b\u1ea3o v\u1ec7 ch\u00fang.<\/p>\n

V\u00ed d\u1ee5:<\/p>\n

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  • Vi\u1ec7c s\u1eed d\u1ee5ng PAWs<\/strong> s\u1ebd lo\u1ea1i b\u1ecf nhi\u1ec1u vector t\u1ea5n c\u00f4ng ngay t\u1eeb thi\u1ebft k\u1ebf (kh\u00f4ng c\u00f3 truy c\u1eadp email, ch\u1ec9 ch\u1ea1y ph\u1ea7n m\u1ec1m \u0111\u01b0\u1ee3c x\u00e1c minh, t\u1ef1 \u0111\u1ed9ng ho\u00e0n nguy\u00ean h\u1ec7 th\u1ed1ng).<\/li>\n
  • Ch\u1ec9 ri\u00eang thay \u0111\u1ed5i n\u00e0y \u0111\u00e3 c\u00f3 th\u1ec3 khi\u1ebfn c\u1ea3 m\u1ed9t nh\u00f3m t\u1ea5n c\u00f4ng tr\u1edf n\u00ean v\u00f4 hi\u1ec7u.<\/li>\n<\/ul>\n

     <\/p>\n

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    Giai \u0111o\u1ea1n 2: Trong khi b\u1ecb t\u1ea5n c\u00f4ng<\/strong><\/h2>\n

    D\u00f9 \u0111\u00e3 n\u1ed7 l\u1ef1c ph\u00f2ng ng\u1eeba, h\u00e3y gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng vi\u1ec7c b\u1ecb x\u00e2m nh\u1eadp l\u00e0 \u0111i\u1ec1u ch\u1eafc ch\u1eafn s\u1ebd x\u1ea3y ra. Nh\u1eefng g\u00ec b\u1ea1n l\u00e0m trong v\u00e0i ph\u00fat v\u00e0 gi\u1edd \u0111\u1ea7u ti\u00ean s\u1ebd quy\u1ebft \u0111\u1ecbnh th\u00e0nh b\u1ea1i c\u1ee7a ph\u1ea3n \u1ee9ng \u1ee9ng ph\u00f3.<\/p>\n

    📡 Ph\u00e1t hi\u1ec7n, ph\u00e1t hi\u1ec7n, ph\u00e1t hi\u1ec7n<\/h3>\n

    B\u1ea1n c\u1ea7n c\u00f3 kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t to\u00e0n di\u1ec7n \u0111\u1ed1i v\u1edbi:<\/p>\n

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      M\u1ea1ng<\/strong><\/p>\n<\/li>\n

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      Thi\u1ebft b\u1ecb \u0111\u1ea7u cu\u1ed1i (endpoints)<\/strong><\/p>\n<\/li>\n

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      Danh t\u00ednh (identity)<\/strong><\/p>\n<\/li>\n<\/ul>\n

      C\u00e1c c\u00f4ng c\u1ee5 ph\u00e1t hi\u1ec7n ph\u1ea3i \u0111\u01b0\u1ee3c t\u00f9y ch\u1ec9nh cho m\u00f4i tr\u01b0\u1eddng c\u1ee7a b\u1ea1n. \u0110\u1eebng ch\u1ea5p nh\u1eadn gi\u1ea3i ph\u00e1p \u201cm\u1ed9t ki\u1ec3u cho t\u1ea5t c\u1ea3\u201d \u2014 h\u00e3y ch\u1ecdn c\u00f4ng c\u1ee5 chuy\u00ean bi\u1ec7t cho t\u1eebng n\u1ec1n t\u1ea3ng (v\u00ed d\u1ee5: b\u1ea3o v\u1ec7 endpoint d\u00e0nh ri\u00eang cho macOS n\u1ebfu t\u1ed5 ch\u1ee9c d\u00f9ng nhi\u1ec1u Mac).<\/p>\n

      T\u00edn hi\u1ec7u r\u00f5 r\u00e0ng, ch\u00ednh x\u00e1c v\u00e0 nhanh ch\u00f3ng s\u1ebd gi\u00fap b\u1ea1n h\u00e0nh \u0111\u1ed9ng d\u1ee9t kho\u00e1t.<\/p>\n

      📝 Th\u1ef1c h\u00e0nh \u0111\u1ec3 lu\u00f4n s\u1eb5n s\u00e0ng<\/h3>\n

      Khi t\u1ea5n c\u00f4ng x\u1ea3y ra, \u0111\u1eebng \u1ee9ng ph\u00f3 theo ki\u1ec3u \u201c\u1ee9ng bi\u1ebfn\u201d<\/strong>. H\u00e3y chu\u1ea9n b\u1ecb s\u1eb5n runbook<\/strong> \u2014 nh\u1eefng playbook <\/strong>chi ti\u1ebft, \u0111\u01b0\u1ee3c ph\u00ea duy\u1ec7t tr\u01b0\u1edbc, m\u00f4 t\u1ea3 r\u00f5 c\u00e1ch ph\u1ea3n \u1ee9ng v\u1edbi t\u1eebng m\u1ed1i \u0111e d\u1ecda c\u1ee5 th\u1ec3. Bao g\u1ed3m:<\/p>\n