{"id":1221,"date":"2022-11-09T13:13:26","date_gmt":"2022-11-09T13:13:26","guid":{"rendered":"https:\/\/securitybriefing.net\/?p=1221"},"modified":"2022-11-09T13:13:26","modified_gmt":"2022-11-09T13:13:26","slug":"cach-bao-ve-doanh-nghiep-cua-ban-khoi-tan-cong-phishing-qua-email","status":"publish","type":"post","link":"https:\/\/securitybriefing.net\/vi\/cac-cuoc-tan-cong-mang\/cach-bao-ve-doanh-nghiep-cua-ban-khoi-tan-cong-phishing-qua-email\/","title":{"rendered":"C\u00e1ch b\u1ea3o v\u1ec7 doanh nghi\u1ec7p c\u1ee7a b\u1ea1n kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o qua email"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">T\u1ed9i ph\u1ea1m m\u1ea1ng hi\u1ec7n l\u00e0 m\u1ed9t trong nhi\u1ec1u m\u1ed1i quan t\u00e2m m\u00e0 doanh nghi\u1ec7p ph\u1ea3i \u0111\u1ed1i m\u1eb7t h\u00e0ng ng\u00e0y. C\u00f4ng ngh\u1ec7 l\u00e0 tr\u1ee5 c\u1ed9t ph\u00e1t tri\u1ec3n c\u1ee7a nhi\u1ec1u c\u00f4ng ty; tuy nhi\u00ean, khi kh\u00eda c\u1ea1nh k\u1ef9 thu\u1eadt s\u1ed1 tr\u1edf n\u00ean thi\u1ebft y\u1ebfu h\u01a1n \u0111\u1ed1i v\u1edbi ho\u1ea1t \u0111\u1ed9ng kinh doanh v\u00e0 c\u00e1c ho\u1ea1t \u0111\u1ed9ng h\u00e0ng ng\u00e0y, th\u00ec c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng trong m\u00f4i tr\u01b0\u1eddng n\u00e0y c\u0169ng gia t\u0103ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">M\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ti\u1ec7n ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u1ec3 tin t\u1eb7c truy c\u1eadp v\u00e0o th\u00f4ng tin ri\u00eang t\u01b0 c\u1ee7a c\u00e1 nh\u00e2n v\u00e0 c\u00f4ng ty l\u00e0 th\u00f4ng qua email. Email l\u00e0 m\u1ed9t trong nh\u1eefng k\u00eanh \u0111\u01b0\u1ee3c c\u00e1c c\u00f4ng ty v\u00e0 c\u00e1 nh\u00e2n s\u1eed d\u1ee5ng nhi\u1ec1u nh\u1ea5t \u0111\u1ec3 chia s\u1ebb th\u00f4ng tin h\u00e0ng ng\u00e0y. Th\u1eadt kh\u00f3 tin khi c\u00f3 bao nhi\u00eau th\u00f4ng tin \u0111\u01b0\u1ee3c g\u1eedi qua email m\u1ed7i ng\u00e0y v\u00e0 bao nhi\u00eau d\u1eef li\u1ec7u trong s\u1ed1 \u0111\u00f3 ch\u1ee9a th\u00f4ng tin ri\u00eang t\u01b0 ho\u1eb7c nh\u1ea1y c\u1ea3m. Gi\u1ea3 s\u1eed b\u1ea1n mu\u1ed1n ng\u0103n c\u00f4ng ty c\u1ee7a m\u00ecnh kh\u1ecfi b\u1ecb t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o do thi\u1ebfu s\u00f3t trong vi\u1ec7c s\u1eed d\u1ee5ng email \u0111\u00fang c\u00e1ch. Trong tr\u01b0\u1eddng h\u1ee3p \u0111\u00f3, b\u00e0i vi\u1ebft n\u00e0y s\u1ebd cung c\u1ea5p cho b\u1ea1n th\u00f4ng tin c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 ng\u0103n ch\u1eb7n v\u00e0 cung c\u1ea5p b\u1ea3o m\u1eadt t\u1ed1t h\u01a1n cho c\u00f4ng ty c\u1ee7a b\u1ea1n.\u00a0<\/span><\/p>\n<h2><b>\u0110\u1ea7u ti\u00ean, l\u1eeba \u0111\u1ea3o l\u00e0 g\u00ec?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">L\u1eeba \u0111\u1ea3o l\u00e0 m\u1ed9t lo\u1ea1i k\u1ef9 thu\u1eadt x\u00e3 h\u1ed9i trong \u0111\u00f3 tin t\u1eb7c l\u1eeba ng\u01b0\u1eddi d\u00f9ng l\u00e0m &quot;\u0111i\u1ec1u sai tr\u00e1i&quot;, th\u01b0\u1eddng bao g\u1ed3m ti\u1ebft l\u1ed9 th\u00f4ng tin ho\u1eb7c nh\u1ea5p v\u00e0o li\u00ean k\u1ebft \u0111\u1ed9c h\u1ea1i. L\u1eeba \u0111\u1ea3o c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n qua ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng x\u00e3 h\u1ed9i, tin nh\u1eafn v\u0103n b\u1ea3n ho\u1eb7c th\u1eadm ch\u00ed qua \u0111i\u1ec7n tho\u1ea1i. Tuy nhi\u00ean, hi\u1ec7n nay, email l\u00e0 k\u00eanh ph\u1ed5 bi\u1ebfn nh\u1ea5t \u0111\u1ec3 duy tr\u00ec lo\u1ea1i t\u1ea5n c\u00f4ng n\u00e0y. Email l\u00e0 ph\u01b0\u01a1ng th\u1ee9c ph\u00e2n ph\u1ed1i l\u00fd t\u01b0\u1edfng cho c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o v\u00ec h\u1ea7u h\u1ebft m\u1ecdi ng\u01b0\u1eddi ki\u1ec3m tra email c\u1ee7a h\u1ecd m\u1ed9t c\u00e1ch v\u1ed9i v\u00e0ng. Ngo\u00e0i ra, c\u00e1c email \u0111\u1ed9c h\u1ea1i n\u00e0y r\u1ea5t d\u1ec5 ng\u1ee5y trang trong s\u1ed1 c\u00e1c email h\u1ee3p l\u1ec7.<\/span><\/p>\n<h3><b>L\u1eeba \u0111\u1ea3o qua m\u1ea1ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn doanh nghi\u1ec7p nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">M\u1ed9t t\u1ed5 ch\u1ee9c thu\u1ed9c b\u1ea5t k\u1ef3 lo\u1ea1i h\u00ecnh v\u00e0 quy m\u00f4 n\u00e0o c\u0169ng c\u00f3 th\u1ec3 b\u1ecb t\u1ea5n c\u00f4ng b\u1edfi email l\u1eeba \u0111\u1ea3o. B\u00ean c\u1ea1nh vi\u1ec7c \u0111\u00e1nh c\u1eafp th\u00f4ng tin, email l\u1eeba \u0111\u1ea3o c\u00f3 th\u1ec3 c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i, bao g\u1ed3m c\u1ea3 ph\u1ea7n m\u1ec1m t\u1ed1ng ti\u1ec1n, ph\u00e1 ho\u1ea1i h\u1ec7 th\u1ed1ng c\u1ee7a b\u1ea1n ho\u1eb7c \u0111\u00e1nh c\u1eafp ti\u1ec1n th\u00f4ng qua gian l\u1eadn. Ngo\u00e0i ra, m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng c\u00f3 th\u1ec3 ph\u00e1 h\u1ee7y danh ti\u1ebfng c\u1ee7a b\u1ea1n v\u00e0 l\u00f2ng tin c\u1ee7a kh\u00e1ch h\u00e0ng. B\u1ea1n c\u00f3 th\u1ec3 b\u1ecb cu\u1ed1n v\u00e0o m\u1ed9t chi\u1ebfn d\u1ecbch h\u00e0ng lo\u1ea1t; \u0111\u00e2y l\u00e0 l\u00fac k\u1ebb t\u1ea5n c\u00f4ng \u0111\u00e1nh c\u1eafp m\u1eadt kh\u1ea9u ho\u1eb7c ki\u1ebfm \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 ti\u1ec1n d\u1ec5 d\u00e0ng, th\u01b0\u1eddng l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean \u0111\u1ec3 th\u1ef1c hi\u1ec7n m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng l\u1edbn h\u01a1n v\u00e0o c\u00f4ng ty c\u1ee7a b\u1ea1n, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u00e1nh c\u1eafp d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m. Trong m\u1ed9t chi\u1ebfn d\u1ecbch c\u00f3 m\u1ee5c ti\u00eau, c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng th\u00f4ng tin ri\u00eang t\u01b0 v\u1ec1 nh\u00e2n vi\u00ean c\u1ee7a b\u1ea1n \u0111\u1ec3 t\u1ea1o ra c\u00e1c th\u00f4ng \u0111i\u1ec7p th\u1ef1c t\u1ebf v\u00e0 thuy\u1ebft ph\u1ee5c h\u01a1n, \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 l\u1eeba \u0111\u1ea3o c\u00f3 ch\u1ee7 \u0111\u00edch.<\/span><\/p>\n<h3><b>T\u1ea1i sao c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o l\u1ea1i th\u00e0nh c\u00f4ng?<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Tin t\u1eb7c \u0111\u00e3 nghi\u00ean c\u1ee9u r\u1ea5t k\u1ef9 h\u00e0nh vi tr\u1ef1c tuy\u1ebfn c\u1ee7a m\u1ecdi ng\u01b0\u1eddi, h\u1ecd bi\u1ebft b\u1ea3n n\u0103ng x\u00e3 h\u1ed9i c\u1ee7a m\u1ecdi ng\u01b0\u1eddi ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o, ch\u1eb3ng h\u1ea1n nh\u01b0 h\u1eefu \u00edch v\u00e0 hi\u1ec7u qu\u1ea3. C\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o c\u00f3 th\u1ec3 \u0111\u1eb7c bi\u1ec7t m\u1ea1nh m\u1ebd v\u00ec nh\u1eefng b\u1ea3n n\u0103ng x\u00e3 h\u1ed9i n\u00e0y c\u0169ng khi\u1ebfn ch\u00fang ta gi\u1ecfi c\u00f4ng vi\u1ec7c c\u1ee7a m\u00ecnh.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00e1ch hi\u1ec7u qu\u1ea3 nh\u1ea5t \u0111\u1ec3 b\u1ea3o v\u1ec7 ch\u1ed1ng l\u1ea1i c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o l\u00e0 s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p c\u00f4ng ngh\u1ec7, quy tr\u00ecnh v\u00e0 c\u00e1c ph\u01b0\u01a1ng ph\u00e1p ti\u1ebfp c\u1eadn d\u1ef1a tr\u00ean con ng\u01b0\u1eddi. V\u00ed d\u1ee5, n\u1ebfu b\u1ea1n mu\u1ed1n m\u1ecdi ng\u01b0\u1eddi b\u00e1o c\u00e1o b\u1ea5t k\u1ef3 email \u0111\u00e1ng ng\u1edd n\u00e0o, b\u1ea1n c\u1ea7n t\u1ea1o \u0111i\u1ec1u ki\u1ec7n thu\u1eadn l\u1ee3i cho h\u1ecd th\u1ef1c hi\u1ec7n vi\u1ec7c \u0111\u00f3. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 cung c\u1ea5p c\u00e1c ph\u01b0\u01a1ng ti\u1ec7n k\u1ef9 thu\u1eadt \u0111\u1ec3 b\u00e1o c\u00e1o email v\u00e0 c\u00f3 m\u1ed9t quy tr\u00ecnh t\u1ea1i ch\u1ed7 s\u1ebd cung c\u1ea5p ph\u1ea3n h\u1ed3i k\u1ecbp th\u1eddi v\u1ec1 b\u00e1o c\u00e1o.<\/span><\/p>\n<h2><b>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 b\u1ea3o v\u1ec7 doanh nghi\u1ec7p c\u1ee7a b\u1ea1n kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o?<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Sau \u0111\u00e2y l\u00e0 m\u1ed9t s\u1ed1 b\u01b0\u1edbc do chuy\u00ean gia cung c\u1ea5p \u0111\u1ec3 b\u1ea3o v\u1ec7 c\u00f4ng ty c\u1ee7a b\u1ea1n kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o qua email:<\/span><\/p>\n<h3><b>M\u1edf r\u1ed9ng kh\u1ea3 n\u0103ng ph\u00f2ng th\u1ee7 c\u1ee7a b\u1ea1n:<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">C\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng th\u1ee7 th\u00f4ng th\u01b0\u1eddng ch\u1ed1ng l\u1ea1i l\u1eeba \u0111\u1ea3o d\u1ef1a v\u00e0o kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n email l\u1eeba \u0111\u1ea3o c\u1ee7a ng\u01b0\u1eddi d\u00f9ng. B\u1eb1ng c\u00e1ch m\u1edf r\u1ed9ng c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng th\u1ee7, b\u1ea1n c\u00f3 th\u1ec3 c\u1ea3i thi\u1ec7n kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i c\u1ee7a m\u00ecnh tr\u01b0\u1edbc l\u1eeba \u0111\u1ea3o m\u00e0 kh\u00f4ng l\u00e0m gi\u00e1n \u0111o\u1ea1n n\u0103ng su\u1ea5t c\u1ee7a nh\u00e2n vi\u00ean. B\u1ea1n c\u0169ng s\u1ebd c\u00f3 nhi\u1ec1u c\u01a1 h\u1ed9i \u0111\u1ec3 ph\u00e1t hi\u1ec7n m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o v\u00e0 h\u00e0nh \u0111\u1ed9ng tr\u01b0\u1edbc khi n\u00f3 c\u00f3 th\u1ec3 g\u00e2y ra thi\u1ec7t h\u1ea1i l\u1edbn cho c\u00f4ng ty c\u1ee7a b\u1ea1n. Ngo\u00e0i ra, \u0111i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i ch\u1ea5p nh\u1eadn th\u1ef1c t\u1ebf l\u00e0 m\u1ed9t s\u1ed1 cu\u1ed9c t\u1ea5n c\u00f4ng s\u1ebd v\u01b0\u1ee3t qua \u0111\u01b0\u1ee3c, \u0111i\u1ec1u n\u00e0y b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng nh\u01b0 m\u1ed9t l\u1ee3i th\u1ebf \u0111\u1ec3 l\u1eadp k\u1ebf ho\u1ea1ch tr\u01b0\u1edbc v\u00e0 gi\u1ea3m thi\u1ec3u thi\u1ec7t h\u1ea1i g\u00e2y ra.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Khi ph\u00e1t tri\u1ec3n k\u1ebf ho\u1ea1ch b\u1ea3o m\u1eadt, b\u1ea1n c\u00f3 th\u1ec3 ngh\u0129 v\u1ec1 bi\u1ec7n ph\u00e1p ph\u00f2ng th\u1ee7 c\u1ee7a m\u00ecnh theo b\u1ed1n l\u1edbp:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0110\u1eebng \u0111\u1ec3 \u0111\u1ecba ch\u1ec9 email c\u1ee7a b\u1ea1n tr\u1edf th\u00e0nh ngu\u1ed3n d\u1eef li\u1ec7u c\u1ee7a tin t\u1eb7c.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Gi\u00fap ng\u01b0\u1eddi d\u00f9ng x\u00e1c \u0111\u1ecbnh v\u00e0 b\u00e1o c\u00e1o c\u00e1c email c\u00f3 kh\u1ea3 n\u0103ng g\u00e2y h\u1ea1i ho\u1eb7c l\u1eeba \u0111\u1ea3o.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">B\u1ea3o v\u1ec7 t\u1ed5 ch\u1ee9c c\u1ee7a b\u1ea1n kh\u1ecfi c\u00e1c email l\u1eeba \u0111\u1ea3o kh\u00f4ng b\u1ecb ph\u00e1t hi\u1ec7n.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">\u0110i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i ph\u1ea3n \u1ee9ng nhanh v\u1edbi c\u00e1c s\u1ef1 c\u1ed1 \u0111\u1ec3 gi\u1ea3i quy\u1ebft ch\u00fang c\u00e0ng s\u1edbm c\u00e0ng t\u1ed1t.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">D\u01b0\u1edbi \u0111\u00e2y ch\u00fang t\u00f4i s\u1ebd gi\u1ea3i th\u00edch t\u1eebng l\u1edbp n\u00e0y v\u00e0 c\u00e1ch \u00e1p d\u1ee5ng ch\u00fang v\u00e0o doanh nghi\u1ec7p c\u1ee7a b\u1ea1n.\u00a0<\/span><\/p>\n<h2><b>L\u1edbp 1: Khi\u1ebfn tin t\u1eb7c kh\u00f3 c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea1n<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">L\u1edbp \u0111\u1ea7u ti\u00ean m\u00f4 t\u1ea3 c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng th\u1ee7 c\u00f3 th\u1ec3 khi\u1ebfn tin t\u1eb7c kh\u00f3 c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i c\u1ee7a b\u1ea1n.<\/span><\/p>\n<h3><b>\u0110\u1eebng \u0111\u1ec3 tin t\u1eb7c s\u1eed d\u1ee5ng \u0111\u1ecba ch\u1ec9 email c\u1ee7a b\u1ea1n l\u00e0m t\u00e0i nguy\u00ean<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">K\u1ebb t\u1ea5n c\u00f4ng c\u00f3 th\u1ec3 l\u1eeba m\u1ecdi ng\u01b0\u1eddi b\u1eb1ng c\u00e1ch g\u1eedi email gi\u1ea3 m\u1ea1o ng\u01b0\u1eddi kh\u00e1c, v\u00ed d\u1ee5 nh\u01b0 m\u1ed9t trong nh\u1eefng nh\u00e2n vi\u00ean c\u1ee7a b\u1ea1n ho\u1eb7c th\u1eadm ch\u00ed l\u00e0 ch\u00ednh b\u1ea1n. Nh\u1eefng email gi\u1ea3 m\u1ea1o n\u00e0y c\u00f3 th\u1ec3 \u0111\u1ebfn tay kh\u00e1ch h\u00e0ng ho\u1eb7c nh\u1eefng ng\u01b0\u1eddi trong t\u1ed5 ch\u1ee9c c\u1ee7a b\u1ea1n.<\/span><\/p>\n<p><strong>B\u1ea1n c\u00f3 th\u1ec3 ng\u0103n ng\u1eeba \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch n\u00e0o?<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ec3 b\u1ea3o v\u1ec7 \u0111\u1ecba ch\u1ec9 email c\u1ee7a b\u1ea1n v\u00e0 ng\u0103n ch\u1eb7n tin t\u1eb7c truy c\u1eadp, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t ch\u1ed1ng gi\u1ea3 m\u1ea1o: DMARC, SPF v\u00e0 DKIM. Ngo\u00e0i ra, khuy\u1ebfn kh\u00edch c\u00e1c li\u00ean h\u1ec7 c\u1ee7a b\u1ea1n l\u00e0m nh\u01b0 v\u1eady c\u0169ng r\u1ea5t h\u1eefu \u00edch.<\/span><\/p>\n<h3><b>Gi\u1ea3m th\u00f4ng tin c\u00f3 s\u1eb5n tr\u1ef1c tuy\u1ebfn<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Th\u00f4ng tin c\u00f4ng khai tr\u1ef1c tuy\u1ebfn c\u1ee7a c\u00f4ng ty b\u1ea1n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u201cd\u1ea5u ch\u00e2n k\u1ef9 thu\u1eadt s\u1ed1\u201d v\u00e0 bao g\u1ed3m t\u1ea5t c\u1ea3 th\u00f4ng tin c\u00f4ng khai m\u00e0 b\u1ea1n \u0111\u0103ng tr\u00ean ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n th\u00f4ng x\u00e3 h\u1ed9i v\u00e0 trang web c\u1ee7a m\u00ecnh. Bao g\u1ed3m c\u1ea3 th\u00f4ng tin m\u00e0 nh\u00e2n vi\u00ean c\u1ee7a b\u1ea1n \u0111\u00e3 \u0111\u0103ng.<\/span><\/p>\n<p><strong>B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m g\u00ec v\u1ec1 v\u1ea5n \u0111\u1ec1 n\u00e0y?<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">Kh\u00f4ng cung c\u1ea5p th\u00f4ng tin kh\u00f4ng c\u1ea7n thi\u1ebft; h\u00e3y c\u1ea9n th\u1eadn v\u1edbi th\u00f4ng tin m\u00e0 \u0111\u1ed1i t\u00e1c, nh\u00e0 th\u1ea7u v\u00e0 nh\u00e0 cung c\u1ea5p c\u1ee7a b\u1ea1n cung c\u1ea5p v\u1ec1 b\u1ea1n trong giao ti\u1ebfp tr\u1ef1c tuy\u1ebfn c\u1ee7a t\u1ed5 ch\u1ee9c h\u1ecd v\u00e0 l\u00e0m vi\u1ec7c v\u1edbi nh\u00e2n vi\u00ean c\u1ee7a b\u1ea1n \u0111\u1ec3 gi\u1ea3m thi\u1ec3u r\u1ee7i ro b\u1ea3o m\u1eadt. Gi\u00e1o d\u1ee5c nh\u00e2n vi\u00ean c\u1ee7a b\u1ea1n v\u1ec1 c\u00e1ch chia s\u1ebb th\u00f4ng tin c\u00e1 nh\u00e2n c\u1ee7a h\u1ecd c\u00f3 th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn h\u1ecd v\u00e0 t\u1ed5 ch\u1ee9c, v\u00e0 ph\u00e1t tri\u1ec3n ch\u00ednh s\u00e1ch d\u1ea5u ch\u00e2n k\u1ef9 thu\u1eadt s\u1ed1 s\u1ea1ch cho t\u1ea5t c\u1ea3 ng\u01b0\u1eddi d\u00f9ng.<\/span><\/p>\n<h3><b>L\u1ecdc ho\u1eb7c ch\u1eb7n email l\u1eeba \u0111\u1ea3o \u0111\u1ebfn<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">L\u1ecdc ho\u1eb7c ch\u1eb7n m\u1ecdi n\u1ed7 l\u1ef1c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o tr\u01b0\u1edbc khi ch\u00fang \u0111\u1ebfn tay ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea1n s\u1ebd l\u00e0m gi\u1ea3m kh\u1ea3 n\u0103ng g\u00e2y h\u1ea1i. Ngo\u00e0i ra, n\u00f3 c\u0169ng l\u00e0m gi\u1ea3m th\u1eddi gian ng\u01b0\u1eddi d\u00f9ng c\u1ea7n d\u00e0nh \u0111\u1ec3 ki\u1ec3m tra email \u0111\u00e1ng ng\u1edd v\u00e0 b\u00e1o c\u00e1o ch\u00fang.<\/span><\/p>\n<p><strong>B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch n\u00e0o?<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">Thu\u00ea d\u1ecbch v\u1ee5 l\u1ecdc\/ch\u1eb7n d\u1ef1a tr\u00ean \u0111\u00e1m m\u00e2y \u0111\u1ec3 ch\u1eb7n t\u1ea5t c\u1ea3 email \u0111\u1ebfn c\u00f3 l\u1eeba \u0111\u1ea3o v\u00e0 ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i tr\u01b0\u1edbc khi ch\u00fang \u0111\u1ebfn tay ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea1n. \u0110\u1ea3m b\u1ea3o d\u1ecbch v\u1ee5 b\u1ea1n nh\u1eadn \u0111\u01b0\u1ee3c bao g\u1ed3m t\u1ea5t c\u1ea3 ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea1n. \u0110\u1ed1i v\u1edbi email \u0111\u1ebfn, ch\u00ednh s\u00e1ch ch\u1ed1ng gi\u1ea3 m\u1ea1o c\u1ee7a ng\u01b0\u1eddi g\u1eedi ph\u1ea3i \u0111\u01b0\u1ee3c t\u00f4n tr\u1ecdng. N\u1ebfu ng\u01b0\u1eddi g\u1eedi c\u00f3 ch\u00ednh s\u00e1ch DMARC v\u1edbi ch\u00ednh s\u00e1ch t\u1eeb ch\u1ed1i, b\u1ea1n n\u00ean l\u00e0m theo y\u00eau c\u1ea7u. Ngo\u00e0i ra, email c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c l\u1ecdc ho\u1eb7c ch\u1eb7n theo nhi\u1ec1u c\u00e1ch, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1eed d\u1ee5ng \u0111\u1ecba ch\u1ec9 IP, t\u00ean mi\u1ec1n, danh s\u00e1ch tr\u1eafng\/\u0111en \u0111\u1ecba ch\u1ec9 email, th\u01b0 r\u00e1c c\u00f4ng khai v\u00e0 danh s\u00e1ch \u0111en chuy\u1ec3n ti\u1ebfp m\u1edf, lo\u1ea1i t\u1ec7p \u0111\u00ednh k\u00e8m v\u00e0 ph\u00e1t hi\u1ec7n ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i.<\/span><\/p>\n<h2><b>L\u1edbp 2: Gi\u00fap ng\u01b0\u1eddi d\u00f9ng x\u00e1c \u0111\u1ecbnh v\u00e0 b\u00e1o c\u00e1o email l\u1eeba \u0111\u1ea3o \u0111\u00e1ng ng\u1edd<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">L\u1edbp n\u00e0y gi\u1ea3i th\u00edch nh\u1eefng c\u00e1ch t\u1ed1t nh\u1ea5t \u0111\u1ec3 gi\u00fap nh\u00e2n vi\u00ean c\u1ee7a b\u1ea1n ph\u00e1t hi\u1ec7n email l\u1eeba \u0111\u1ea3o v\u00e0 c\u00e1ch c\u1ea3i thi\u1ec7n v\u0103n h\u00f3a b\u00e1o c\u00e1o c\u1ee7a b\u1ea1n.<\/span><\/p>\n<h3><b>M\u1ed9t ch\u01b0\u01a1ng tr\u00ecnh \u0111\u00e0o t\u1ea1o l\u1eeba \u0111\u1ea3o \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n t\u1ed1t c\u00f3 th\u1ec3 t\u1ea1o ra s\u1ef1 kh\u00e1c bi\u1ec7t<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">M\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p \u0111\u01b0\u1ee3c nh\u1ea5n m\u1ea1nh nh\u1ea5t li\u00ean quan \u0111\u1ebfn ph\u00f2ng ch\u1ed1ng l\u1eeba \u0111\u1ea3o l\u00e0 \u0111\u00e0o t\u1ea1o ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea1n, h\u1ecd c\u00f3 th\u1ec3 \u0111\u00f3ng g\u00f3p gi\u00e1 tr\u1ecb cho s\u1ef1 an to\u00e0n c\u1ee7a t\u1ed5 ch\u1ee9c b\u1ea1n. Tuy nhi\u00ean, con ng\u01b0\u1eddi c\u00f3 th\u1ec3 m\u1eafc l\u1ed7i, \u0111\u00f3 l\u00e0 l\u00fd do t\u1ea1i sao \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i cung c\u1ea5p m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn to\u00e0n di\u1ec7n v\u1edbi c\u00e1c bi\u1ec7n ph\u00e1p gi\u1ea3m thi\u1ec3u k\u1ef9 thu\u1eadt ph\u00f9 h\u1ee3p v\u00e0 thay \u0111\u1ed5i v\u0103n h\u00f3a b\u1ea3o m\u1eadt r\u1ed9ng h\u01a1n c\u1ee7a t\u1ed5 ch\u1ee9c.\u00a0<\/span><\/p>\n<p><strong>B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch n\u00e0o?<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">Nh\u00e2n vi\u00ean c\u1ee7a b\u1ea1n ph\u1ea3i bi\u1ebft r\u1eb1ng tin nh\u1eafn l\u1eeba \u0111\u1ea3o c\u00f3 th\u1ec3 kh\u00f3 ph\u00e1t hi\u1ec7n v\u00e0 b\u1ea1n kh\u00f4ng mong \u0111\u1ee3i m\u1ecdi ng\u01b0\u1eddi c\u00f3 th\u1ec3 nh\u1eadn d\u1ea1ng ch\u00fang m\u1ecdi l\u00fac. Thay v\u00e0o \u0111\u00f3, h\u00e3y nu\u00f4i d\u01b0\u1ee1ng t\u01b0 duy r\u1eb1ng vi\u1ec7c y\u00eau c\u1ea7u h\u01b0\u1edbng d\u1eabn ho\u1eb7c h\u1ed7 tr\u1ee3 khi c\u00f3 \u0111i\u1ec1u g\u00ec \u0111\u00f3 c\u00f3 v\u1ebb kh\u00f4ng \u1ed5n l\u00e0 \u0111i\u1ec1u b\u00ecnh th\u01b0\u1eddng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Kh\u00f4ng bao gi\u1edd tr\u1eebng ph\u1ea1t nh\u1eefng ng\u01b0\u1eddi d\u00f9ng \u0111ang v\u1eadt l\u1ed9n \u0111\u1ec3 ph\u00e1t hi\u1ec7n email l\u1eeba \u0111\u1ea3o. H\u00e3y nh\u1edb r\u1eb1ng tin t\u1eb7c l\u00e0 nh\u1eefng chuy\u00ean gia v\u00e0 h\u1ecd bi\u1ebft c\u00e1ch l\u1eeba m\u1ecdi ng\u01b0\u1eddi. \u0110\u00e0o t\u1ea1o n\u00ean h\u01b0\u1edbng \u0111\u1ebfn m\u1ee5c ti\u00eau l\u00e0 n\u00e2ng cao s\u1ef1 t\u1ef1 tin v\u00e0 \u00fd ch\u00ed b\u00e1o c\u00e1o c\u00e1c s\u1ef1 c\u1ed1 trong t\u01b0\u01a1ng lai c\u1ee7a nh\u00e2n vi\u00ean.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ea3m b\u1ea3o ng\u01b0\u1eddi d\u00f9ng hi\u1ec3u \u0111\u01b0\u1ee3c h\u1eadu qu\u1ea3 c\u1ee7a l\u1eeba \u0111\u1ea3o qua m\u1ea1ng v\u00e0 cung c\u1ea5p c\u00e1c v\u00ed d\u1ee5 th\u1ef1c t\u1ebf c\u00f9ng tr\u01b0\u1eddng h\u1ee3p nghi\u00ean c\u1ee9u c\u1ee5 th\u1ec3 m\u00e0 kh\u00f4ng khi\u1ebfn h\u1ecd qu\u00e1 cho\u00e1ng ng\u1ee3p.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">L\u00e0m vi\u1ec7c v\u1edbi nh\u1eefng nh\u00e2n vi\u00ean d\u1ec5 b\u1ecb t\u1ea5n c\u00f4ng b\u1eb1ng email l\u1eeba \u0111\u1ea3o h\u01a1n. V\u00ed d\u1ee5, c\u00e1c ph\u00f2ng ban ti\u1ebfp x\u00fac v\u1edbi kh\u00e1ch h\u00e0ng, b\u1ed9 ph\u1eadn t\u00e0i ch\u00ednh ho\u1eb7c nh\u00e2n vi\u00ean CNTT th\u01b0\u1eddng l\u00e0 m\u1ee5c ti\u00eau quan t\u00e2m c\u1ee7a tin t\u1eb7c. \u0110\u1ea3m b\u1ea3o nh\u00e2n vi\u00ean nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c c\u00e1c r\u1ee7i ro v\u00e0 cung c\u1ea5p cho h\u1ecd s\u1ef1 h\u1ed7 tr\u1ee3 b\u1ed5 sung.<\/span><\/p>\n<h3><b>Gi\u00fap ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea1n d\u1ec5 d\u00e0ng nh\u1eadn ra c\u00e1c y\u00eau c\u1ea7u gian l\u1eadn<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">K\u1ebb t\u1ea5n c\u00f4ng l\u1eeba ng\u01b0\u1eddi d\u00f9ng truy c\u1eadp v\u00e0o m\u1eadt kh\u1ea9u ho\u1eb7c th\u1ef1c hi\u1ec7n thanh to\u00e1n tr\u00e1i ph\u00e9p. Ghi nh\u1edb nh\u1eefng quy tr\u00ecnh n\u00e0o c\u00f3 nhi\u1ec1u kh\u1ea3 n\u0103ng b\u1ecb k\u1ebb t\u1ea5n c\u00f4ng b\u1eaft ch\u01b0\u1edbc, c\u1ea7n ph\u1ea3i c\u1ea3i thi\u1ec7n v\u00e0 xem x\u00e9t ch\u00fang \u0111\u1ec3 c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng ph\u00e1t hi\u1ec7n c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o n\u00e0y.<\/span><\/p>\n<p><strong>B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch n\u00e0o?<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ea3m b\u1ea3o m\u1ecdi ng\u01b0\u1eddi li\u00ean quan \u0111\u1ec1u quen thu\u1ed9c v\u1edbi c\u00e1c quy tr\u00ecnh v\u00e0 s\u1eb5n s\u00e0ng nh\u1eadn bi\u1ebft ho\u1ea1t \u0111\u1ed9ng b\u1ea5t th\u01b0\u1eddng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tri\u1ec3n khai x\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1, ngh\u0129a l\u00e0 t\u1ea5t c\u1ea3 c\u00e1c y\u00eau c\u1ea7u email quan tr\u1ecdng \u0111\u1ec1u \u0111\u01b0\u1ee3c x\u00e1c minh th\u00f4ng qua m\u1ed9t lo\u1ea1i giao ti\u1ebfp th\u1ee9 hai, ch\u1eb3ng h\u1ea1n nh\u01b0 tin nh\u1eafn v\u0103n b\u1ea3n, cu\u1ed9c g\u1ecdi ho\u1eb7c tr\u1ef1c ti\u1ebfp. M\u1ed9t \u0111i\u1ec1u kh\u00e1c b\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111\u1ec3 chia s\u1ebb t\u1ec7p l\u00e0 th\u00f4ng qua t\u00e0i kho\u1ea3n \u0111\u00e1m m\u00e2y \u0111\u01b0\u1ee3c ki\u1ec3m so\u00e1t quy\u1ec1n truy c\u1eadp; theo c\u00e1ch n\u00e0y, b\u1ea1n tr\u00e1nh \u0111\u01b0\u1ee3c m\u1ecdi t\u1ec7p \u0111\u00ednh k\u00e8m trong email c\u1ee7a m\u00ecnh.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">H\u00e3y c\u00e2n nh\u1eafc vi\u1ec7c cho nh\u00e0 cung c\u1ea5p ho\u1eb7c kh\u00e1ch h\u00e0ng bi\u1ebft nh\u1eefng \u0111i\u1ec1u h\u1ecd n\u00ean t\u00ecm ki\u1ebfm, ch\u1eb3ng h\u1ea1n nh\u01b0 &quot;ch\u00fang t\u00f4i s\u1ebd kh\u00f4ng bao gi\u1edd y\u00eau c\u1ea7u b\u1ea1n cung c\u1ea5p m\u1eadt kh\u1ea9u ho\u1eb7c th\u00f4ng tin ng\u00e2n h\u00e0ng&quot;.<\/span><\/p>\n<h3><b>Khuy\u1ebfn kh\u00edch ng\u01b0\u1eddi d\u00f9ng y\u00eau c\u1ea7u tr\u1ee3 gi\u00fap khi h\u1ecd c\u1ea7n<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">X\u00e2y d\u1ef1ng v\u0103n h\u00f3a b\u00e1o c\u00e1o t\u1ed1t cho ph\u00e9p ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea1n y\u00eau c\u1ea7u tr\u1ee3 gi\u00fap v\u00e0 cung c\u1ea5p cho b\u1ea1n th\u00f4ng tin quan tr\u1ecdng v\u1ec1 c\u00e1c lo\u1ea1i t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o \u0111ang nh\u1eafm v\u00e0o t\u1ed5 ch\u1ee9c c\u1ee7a b\u1ea1n. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 t\u00ecm hi\u1ec3u c\u00e1c lo\u1ea1i email n\u00e0o \u0111ang b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi l\u1eeba \u0111\u1ea3o v\u00e0 nh\u1eefng c\u1ea3i ti\u1ebfn n\u00e0o b\u1ea1n c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n.<\/span><\/p>\n<p><strong>B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch n\u00e0o?<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">T\u1ea1o quy tr\u00ecnh hi\u1ec7u qu\u1ea3 \u0111\u1ec3 ng\u01b0\u1eddi d\u00f9ng b\u00e1o c\u00e1o khi h\u1ecd ngh\u0129 r\u1eb1ng c\u00e1c n\u1ed7 l\u1ef1c l\u1eeba \u0111\u1ea3o c\u00f3 th\u1ec3 \u0111\u00e3 v\u01b0\u1ee3t qua c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng th\u1ee7 k\u1ef9 thu\u1eadt c\u1ee7a t\u1ed5 ch\u1ee9c b\u1ea1n. \u0110\u1ea3m b\u1ea3o quy tr\u00ecnh r\u00f5 r\u00e0ng, \u0111\u01a1n gi\u1ea3n v\u00e0 thu\u1eadn ti\u1ec7n.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Cung c\u1ea5p ph\u1ea3n h\u1ed3i nhanh ch\u00f3ng v\u00e0 c\u1ee5 th\u1ec3 v\u1ec1 h\u00e0nh \u0111\u1ed9ng \u0111\u00e3 th\u1ef1c hi\u1ec7n v\u00e0 l\u00e0m r\u00f5 r\u1eb1ng nh\u1eefng \u0111\u00f3ng g\u00f3p c\u1ee7a h\u1ecd t\u1ea1o n\u00ean s\u1ef1 kh\u00e1c bi\u1ec7t v\u00e0 h\u1eefu \u00edch.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">H\u00e3y ngh\u0129 v\u1ec1 c\u00e1ch b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c k\u00eanh giao ti\u1ebfp kh\u00f4ng ch\u00ednh th\u1ee9c \u0111\u1ec3 t\u1ea1o ra m\u00f4i tr\u01b0\u1eddng n\u01a1i nh\u00e2n vi\u00ean c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng th\u1ea3o lu\u1eadn v\u1ec1 ch\u1ee7 \u0111\u1ec1 n\u00e0y v\u00e0 y\u00eau c\u1ea7u h\u1ed7 tr\u1ee3 v\u00e0 h\u01b0\u1edbng d\u1eabn.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Tr\u00e1nh t\u1ea1o ra v\u0103n h\u00f3a tr\u1eebng ph\u1ea1t ho\u1eb7c \u0111\u1ed5 l\u1ed7i li\u00ean quan \u0111\u1ebfn l\u1eeba \u0111\u1ea3o.<\/span><\/p>\n<h2><b>L\u1edbp 3: B\u1ea3o v\u1ec7 t\u1ed5 ch\u1ee9c c\u1ee7a b\u1ea1n kh\u1ecfi t\u00e1c \u0111\u1ed9ng c\u1ee7a email l\u1eeba \u0111\u1ea3o kh\u00f4ng b\u1ecb ph\u00e1t hi\u1ec7n<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">L\u1edbp n\u00e0y gi\u1ea3i th\u00edch c\u00e1ch gi\u1ea3m thi\u1ec3u t\u00e1c \u0111\u1ed9ng c\u1ee7a email l\u1eeba \u0111\u1ea3o kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n.<\/span><\/p>\n<h3><b>B\u1ea3o v\u1ec7 thi\u1ebft b\u1ecb c\u1ee7a b\u1ea1n kh\u1ecfi ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i \u1ea9n trong email ho\u1eb7c trang web gi\u1ea3 m\u1ea1o, nh\u01b0ng b\u1ea1n c\u00f3 th\u1ec3 c\u1ea5u h\u00ecnh thi\u1ebft b\u1ecb c\u1ee7a m\u00ecnh \u0111\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i, ngay c\u1ea3 khi \u0111\u00e3 nh\u1ea5p v\u00e0o email.<\/span><\/p>\n<p><strong>L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 tr\u00e1nh ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i?<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">M\u1ed9t c\u00e1ch \u0111\u1ec3 ng\u0103n ch\u1eb7n k\u1ebb t\u1ea5n c\u00f4ng khai th\u00e1c l\u1ed7 h\u1ed5ng c\u1ee7a b\u1ea1n l\u00e0 s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m v\u00e0 thi\u1ebft b\u1ecb \u0111\u01b0\u1ee3c h\u1ed7 tr\u1ee3 v\u00e0 c\u1eadp nh\u1eadt phi\u00ean b\u1ea3n m\u1edbi nh\u1ea5t c\u1ee7a c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n ph\u1ea7n m\u1ec1m, nh\u00e0 cung c\u1ea5p ph\u1ea7n c\u1ee9ng v\u00e0 nh\u00e0 ph\u00e2n ph\u1ed1i.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Gi\u1edbi h\u1ea1n vi\u1ec7c s\u1eed d\u1ee5ng t\u00e0i kho\u1ea3n qu\u1ea3n tr\u1ecb vi\u00ean ch\u1ec9 d\u00e0nh cho nh\u1eefng nh\u00e2n vi\u00ean c\u1ea7n ch\u00fang. Tuy nhi\u00ean, nh\u1eefng ng\u01b0\u1eddi c\u00f3 t\u00e0i kho\u1ea3n qu\u1ea3n tr\u1ecb vi\u00ean kh\u00f4ng bao gi\u1edd n\u00ean s\u1eed d\u1ee5ng ch\u00fang \u0111\u1ec3 ki\u1ec3m tra email ho\u1eb7c duy\u1ec7t web.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">H\u00e3y c\u00e2n nh\u1eafc c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o m\u1eadt kh\u00e1c \u0111\u1ec3 ch\u1ed1ng l\u1ea1i ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i, ch\u1eb3ng h\u1ea1n nh\u01b0 v\u00f4 hi\u1ec7u h\u00f3a macro, ph\u1ea7n m\u1ec1m ch\u1ed1ng ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i, ph\u1ea7n m\u1ec1m di\u1ec7t vi-r\u00fat, v.v. Tuy nhi\u00ean, b\u1ea1n ph\u1ea3i \u0111\u1ea3m b\u1ea3o lo\u1ea1i ph\u00f2ng th\u1ee7 ch\u1ed1ng ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i n\u00e0o ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c thi\u1ebft b\u1ecb kh\u00e1c nhau.<\/span><\/p>\n<h3><b>B\u1ea3o v\u1ec7 ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea1n kh\u1ecfi c\u00e1c trang web \u0111\u1ed9c h\u1ea1i<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Li\u00ean k\u1ebft \u0111\u1ebfn c\u00e1c trang web \u0111\u1ed9c h\u1ea1i lu\u00f4n l\u00e0 ph\u1ea7n quan tr\u1ecdng nh\u1ea5t c\u1ee7a email l\u1eeba \u0111\u1ea3o. Tuy nhi\u00ean, n\u1ebfu li\u00ean k\u1ebft kh\u00f4ng th\u1ec3 m\u1edf trang web, cu\u1ed9c t\u1ea5n c\u00f4ng s\u1ebd kh\u00f4ng ho\u00e0n t\u1ea5t.<\/span><\/p>\n<p><strong>B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch n\u00e0o?<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">Ph\u1ea7n m\u1ec1m hi\u1ec7n \u0111\u1ea1i v\u00e0 c\u1eadp nh\u1eadt nh\u1ea5t s\u1ebd ch\u1eb7n c\u00e1c trang web c\u00f3 ch\u1ee9a ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i. Tuy nhi\u00ean, t\u00f9y ch\u1ecdn n\u00e0y kh\u00f4ng ph\u1ea3i l\u00fac n\u00e0o c\u0169ng kh\u1ea3 d\u1ee5ng tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">C\u00e1c t\u1ed5 ch\u1ee9c n\u00ean ch\u1ea1y d\u1ecbch v\u1ee5 proxy, n\u1ed9i b\u1ed9 ho\u1eb7c tr\u00ean \u0111\u00e1m m\u00e2y, \u0111\u1ec3 ch\u1eb7n m\u1ecdi n\u1ed7 l\u1ef1c truy c\u1eadp v\u00e0o c\u00e1c trang web \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh l\u00e0 l\u01b0u tr\u1eef ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i ho\u1eb7c chi\u1ebfn d\u1ecbch l\u1eeba \u0111\u1ea3o.<\/span><\/p>\n<h3><b>B\u1ea3o v\u1ec7 t\u00e0i kho\u1ea3n c\u1ee7a b\u1ea1n b\u1eb1ng c\u00e1ch x\u00e1c th\u1ef1c m\u1ea1nh m\u1ebd h\u01a1n<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Tin t\u1eb7c lu\u00f4n s\u0103n l\u00f9ng m\u1eadt kh\u1ea9u, \u0111\u1eb7c bi\u1ec7t l\u00e0 khi ch\u00fang l\u00e0 t\u00e0i kho\u1ea3n c\u00f3 quy\u1ec1n truy c\u1eadp th\u00f4ng tin nh\u1ea1y c\u1ea3m, t\u00e0i s\u1ea3n t\u00e0i ch\u00ednh ho\u1eb7c h\u1ec7 th\u1ed1ng CNTT. H\u00e3y \u0111\u1ea3m b\u1ea3o r\u1eb1ng quy tr\u00ecnh \u0111\u0103ng nh\u1eadp c\u1ee7a b\u1ea1n ch\u1ed1ng l\u1eeba \u0111\u1ea3o t\u1ed1t h\u01a1n v\u00e0 h\u1ea1n ch\u1ebf s\u1ed1 l\u01b0\u1ee3ng t\u00e0i kho\u1ea3n c\u00f3 quy\u1ec1n truy c\u1eadp \u0111\u1eb7c quy\u1ec1n v\u00e0o th\u00f4ng tin nh\u1ea1y c\u1ea3m.<\/span><\/p>\n<p><strong>B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch n\u00e0o?<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">B\u1eadt x\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1 (2FA) ho\u1eb7c x\u00e1c minh hai b\u01b0\u1edbc. C\u00f3 y\u1ebfu t\u1ed1 th\u1ee9 hai c\u00f3 ngh\u0129a l\u00e0 k\u1ebb t\u1ea5n c\u00f4ng kh\u00f4ng th\u1ec3 truy c\u1eadp t\u00e0i kho\u1ea3n b\u1eb1ng m\u1eadt kh\u1ea9u b\u1ecb \u0111\u00e1nh c\u1eafp.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">S\u1eed d\u1ee5ng tr\u00ecnh qu\u1ea3n l\u00fd m\u1eadt kh\u1ea9u. M\u1ed9t s\u1ed1 tr\u00ecnh qu\u1ea3n l\u00fd n\u00e0y nh\u1eadn d\u1ea1ng c\u00e1c trang web th\u1eadt v\u00e0 s\u1ebd kh\u00f4ng t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1n v\u00e0o c\u00e1c trang web gi\u1ea3 m\u1ea1o; theo c\u00e1ch n\u00e0y, b\u1ea1n s\u1ebd tr\u00e1nh cung c\u1ea5p th\u00f4ng tin \u0111\u0103ng nh\u1eadp c\u1ee7a m\u00ecnh cho m\u1ed9t trang web gi\u1ea3 m\u1ea1o. Ngo\u00e0i ra, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ph\u00e1p \u0111\u0103ng nh\u1eadp m\u1ed9t l\u1ea7n, trong \u0111\u00f3 thi\u1ebft b\u1ecb nh\u1eadn d\u1ea1ng v\u00e0 t\u1ef1 \u0111\u1ed9ng \u0111\u0103ng nh\u1eadp v\u00e0o trang web th\u1eadt. Hai k\u1ef9 thu\u1eadt n\u00e0y tr\u00e1nh nh\u1eadp m\u1eadt kh\u1ea9u theo c\u00e1ch th\u1ee7 c\u00f4ng, \u0111i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 s\u1ebd b\u1ea5t th\u01b0\u1eddng khi m\u1ed9t trang web y\u00eau c\u1ea7u ng\u01b0\u1eddi d\u00f9ng nh\u1eadp m\u1eadt kh\u1ea9u.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">H\u00e3y c\u00e2n nh\u1eafc s\u1eed d\u1ee5ng c\u00e1c c\u01a1 ch\u1ebf \u0111\u0103ng nh\u1eadp thay th\u1ebf kh\u00f3 b\u1ecb \u0111\u00e1nh c\u1eafp h\u01a1n, nh\u01b0 sinh tr\u1eafc h\u1ecdc ho\u1eb7c th\u1ebb th\u00f4ng minh.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">X\u00f3a ho\u1eb7c t\u1ea1m ng\u1eebng c\u00e1c t\u00e0i kho\u1ea3n kh\u00f4ng c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng.<\/span><\/p>\n<h2><b>L\u1edbp 4: Ph\u1ea3n \u1ee9ng nhanh v\u1edbi c\u00e1c s\u1ef1 c\u1ed1<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">M\u1ecdi t\u1ed5 ch\u1ee9c \u0111\u1ec1u c\u00f3 th\u1ec3 b\u1ecb t\u1ea5n c\u00f4ng m\u1ea1ng v\u00e0o m\u1ed9t th\u1eddi \u0111i\u1ec3m n\u00e0o \u0111\u00f3; vi\u1ec7c nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y v\u00e0 c\u00f3 k\u1ebf ho\u1ea1ch ph\u1ea3n \u1ee9ng ngay l\u1eadp t\u1ee9c l\u00e0 \u0111i\u1ec1u t\u1ed1i quan tr\u1ecdng \u0111\u1ec3 tr\u00e1nh nh\u1eefng h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng nh\u1ea5t.<\/span><\/p>\n<h3><b>Ph\u00e1t hi\u1ec7n s\u1ef1 c\u1ed1 nhanh ch\u00f3ng<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Bi\u1ebft v\u1ec1 m\u1ed9t s\u1ef1 c\u1ed1 s\u1edbm h\u01a1n s\u1ebd gi\u00fap b\u1ea1n h\u1ea1n ch\u1ebf \u0111\u01b0\u1ee3c t\u00e1c h\u1ea1i m\u00e0 n\u00f3 c\u00f3 th\u1ec3 g\u00e2y ra.<\/span><\/p>\n<p><strong>B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch n\u00e0o?<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">C\u00f3 kh\u1ea3 n\u0103ng gi\u00e1m s\u00e1t b\u1ea3o m\u1eadt c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n ra c\u00e1c s\u1ef1 c\u1ed1 m\u00e0 ng\u01b0\u1eddi d\u00f9ng c\u1ee7a b\u1ea1n kh\u00f4ng bi\u1ebft. Tuy nhi\u00ean, \u0111i\u1ec1u n\u00e0y kh\u00f4ng th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1ed1i v\u1edbi t\u1ea5t c\u1ea3 c\u00e1c t\u1ed5 ch\u1ee9c, v\u00ec v\u1eady b\u1ea1n c\u00f3 th\u1ec3 b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch thu th\u1eadp nh\u1eadt k\u00fd, ch\u1eb3ng h\u1ea1n nh\u01b0 l\u1ecbch s\u1eed email \u0111\u00e3 nh\u1eadn, \u0111\u1ecba ch\u1ec9 web \u0111\u00e3 truy c\u1eadp v\u00e0 k\u1ebft n\u1ed1i \u0111\u1ebfn \u0111\u1ecba ch\u1ec9 IP b\u00ean ngo\u00e0i. \u0110\u1ec3 thu th\u1eadp th\u00f4ng tin n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 gi\u00e1m s\u00e1t \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p s\u1eb5n trong c\u00e1c d\u1ecbch v\u1ee5 c\u00f3 s\u1eb5n, ch\u1eb3ng h\u1ea1n nh\u01b0 b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n b\u1ea3o m\u1eadt \u0111\u00e1m m\u00e2y, x\u00e2y d\u1ef1ng m\u1ed9t nh\u00f3m n\u1ed9i b\u1ed9 ho\u1eb7c thu\u00ea ngo\u00e0i cho m\u1ed9t d\u1ecbch v\u1ee5 gi\u00e1m s\u00e1t b\u1ea3o m\u1eadt \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd. S\u1ed1 ti\u1ec1n b\u1ea1n thu th\u1eadp v\u00e0 l\u01b0u tr\u1eef s\u1ebd ph\u1ee5 thu\u1ed9c v\u00e0o ng\u00e2n s\u00e1ch c\u1ee7a b\u1ea1n. Sau khi th\u1ef1c hi\u1ec7n xong, h\u00e3y \u0111\u1ea3m b\u1ea3o c\u1eadp nh\u1eadt nh\u1eadt k\u00fd \u0111\u1ec3 duy tr\u00ec hi\u1ec7u qu\u1ea3.<\/span><\/p>\n<h3><b>C\u00f3 k\u1ebf ho\u1ea1ch \u1ee9ng ph\u00f3 s\u1ef1 c\u1ed1<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Khi b\u1ea1n ho\u1eb7c m\u1ed9t s\u1ed1 nh\u00e2n vi\u00ean c\u1ee7a b\u1ea1n ph\u00e1t hi\u1ec7n ra m\u1ed9t cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o, b\u1ea1n c\u1ea7n bi\u1ebft ph\u1ea3i l\u00e0m g\u00ec \u0111\u1ec3 ng\u0103n ch\u1eb7n m\u1ecdi t\u00e1c h\u1ea1i c\u00e0ng s\u1edbm c\u00e0ng t\u1ed1t.<\/span><\/p>\n<p><strong>B\u1ea1n c\u00f3 th\u1ec3 l\u00e0m \u0111i\u1ec1u n\u00e0y b\u1eb1ng c\u00e1ch n\u00e0o?<\/strong><\/p>\n<p><span style=\"font-weight: 400;\">\u0110\u1ea3m b\u1ea3o m\u1ecdi ng\u01b0\u1eddi trong t\u1ed5 ch\u1ee9c bi\u1ebft ph\u1ea3i l\u00e0m g\u00ec trong tr\u01b0\u1eddng h\u1ee3p x\u1ea3y ra c\u00e1c lo\u1ea1i s\u1ef1 c\u1ed1 kh\u00e1c nhau, tr\u00e1ch nhi\u1ec7m c\u1ee7a h\u1ecd v\u00e0 c\u00e1ch h\u1ecd s\u1ebd th\u1ef1c hi\u1ec7n. \u0110\u1ea3m b\u1ea3o k\u1ebf ho\u1ea1ch c\u1ee7a b\u1ea1n tu\u00e2n th\u1ee7 c\u00e1c ngh\u0129a v\u1ee5 ph\u00e1p l\u00fd v\u00e0 quy \u0111\u1ecbnh c\u1ee7a t\u1ed5 ch\u1ee9c. C\u00e1c k\u1ebf ho\u1ea1ch \u1ee9ng ph\u00f3 s\u1ef1 c\u1ed1 n\u00ean \u0111\u01b0\u1ee3c th\u1ef1c h\u00e0nh tr\u01b0\u1edbc \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u quen thu\u1ed9c v\u1edbi quy tr\u00ecnh v\u00e0 vai tr\u00f2 c\u1ee7a h\u1ecd.<\/span><\/p>\n<h2><b>Suy ngh\u0129 cu\u1ed1i c\u00f9ng<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Cu\u1ed1i c\u00f9ng, c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o c\u00f3 th\u1ec3 g\u00e2y ra h\u1eadu qu\u1ea3 nghi\u00eam tr\u1ecdng cho c\u00e1 nh\u00e2n v\u00e0 t\u1ed5 ch\u1ee9c. \u0110i\u1ec1u quan tr\u1ecdng c\u1ea7n nh\u1edb l\u00e0 \u0111\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 c\u00f3 th\u1ec3 gi\u1ea3i quy\u1ebft b\u1eb1ng m\u1ed9t gi\u1ea3i ph\u00e1p m\u00e0 l\u00e0 b\u1eb1ng c\u00e1ch tri\u1ec3n khai nhi\u1ec1u l\u1edbp ph\u00f2ng th\u1ee7 kh\u00e1c nhau. \u0110i\u1ec1u n\u00e0y c\u00f3 th\u1ec3 li\u00ean quan \u0111\u1ebfn c\u00e1c bi\u1ec7n ph\u00e1p k\u1ef9 thu\u1eadt, ch\u1eb3ng h\u1ea1n nh\u01b0 s\u1eed d\u1ee5ng c\u1ed5ng email an to\u00e0n v\u00e0 d\u1ecbch v\u1ee5 proxy, c\u0169ng nh\u01b0 x\u00e1c th\u1ef1c m\u1ea1nh v\u00e0 \u0111\u00e0o t\u1ea1o ng\u01b0\u1eddi d\u00f9ng th\u01b0\u1eddng xuy\u00ean \u0111\u1ec3 gi\u00e1o d\u1ee5c nh\u00e2n vi\u00ean v\u1ec1 c\u00e1ch nh\u1eadn bi\u1ebft c\u00e1c n\u1ed7 l\u1ef1c l\u1eeba \u0111\u1ea3o. Cu\u1ed1i c\u00f9ng, h\u00e3y chu\u1ea9n b\u1ecb m\u1ed9t k\u1ebf ho\u1ea1ch \u1ee9ng ph\u00f3 trong tr\u01b0\u1eddng h\u1ee3p b\u1ecb t\u1ea5n c\u00f4ng l\u00e0 r\u1ea5t quan tr\u1ecdng \u0111\u1ec3 gi\u1ea3m thi\u1ec3u thi\u1ec7t h\u1ea1i v\u00e0 ph\u1ee5c h\u1ed3i nhanh ch\u00f3ng.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>T\u1ed9i ph\u1ea1m m\u1ea1ng hi\u1ec7n l\u00e0 m\u1ed9t trong nhi\u1ec1u m\u1ed1i quan t\u00e2m m\u00e0 doanh nghi\u1ec7p ph\u1ea3i \u0111\u1ed1i m\u1eb7t h\u00e0ng ng\u00e0y. C\u00f4ng ngh\u1ec7 \u0111\u00e3 l\u00e0 tr\u1ee5 c\u1ed9t ph\u00e1t tri\u1ec3n c\u1ee7a nhi\u1ec1u c\u00f4ng ty; tuy nhi\u00ean, khi kh\u00eda c\u1ea1nh k\u1ef9 thu\u1eadt s\u1ed1 tr\u1edf n\u00ean thi\u1ebft y\u1ebfu h\u01a1n \u0111\u1ed1i v\u1edbi\u2026 <a class=\"more-link\" href=\"https:\/\/securitybriefing.net\/vi\/cac-cuoc-tan-cong-mang\/cach-bao-ve-doanh-nghiep-cua-ban-khoi-tan-cong-phishing-qua-email\/\">Ti\u1ebfp t\u1ee5c \u0111\u1ecdc <span class=\"screen-reader-text\">C\u00e1ch b\u1ea3o v\u1ec7 doanh nghi\u1ec7p c\u1ee7a b\u1ea1n kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng l\u1eeba \u0111\u1ea3o qua email<\/span><\/a><\/p>","protected":false},"author":3,"featured_media":1225,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-1221","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cyber-attacks","entry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Business Protection From Email Phishing Attacks | Security Briefing<\/title>\n<meta name=\"description\" content=\"It is essential to have the best email security. 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