{"id":45038,"date":"2025-08-21T03:09:28","date_gmt":"2025-08-21T03:09:28","guid":{"rendered":"https:\/\/staging.pageloot.com\/uncategorized\/best-practices-for-qr-code-security-in-cyber-defense\/"},"modified":"2026-09-29T06:16:42","modified_gmt":"2026-09-29T06:16:42","slug":"best-practices-for-qr-code-security-in-cyber-defense","status":"publish","type":"post","link":"https:\/\/pageloot.com\/vi\/blog\/best-practices-for-qr-code-security-in-cyber-defense\/","title":{"rendered":"C\u00e1ch b\u1ea3o m\u1eadt m\u00e3 QR kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng"},"content":{"rendered":"<p class=\"wp-block-paragraph\">T\u1ed5 ch\u1ee9c c\u1ee7a b\u1ea1n c\u00f3 \u0111\u01b0\u1ee3c b\u1ea3o v\u1ec7 kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng m\u00e3 QR \u0111\u1ed9c h\u1ea1i kh\u00f4ng? M\u1ed9t l\u1ea7n qu\u00e9t gian l\u1eadn duy nh\u1ea5t c\u00f3 th\u1ec3 \u0111\u01b0a ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn c\u00e1c c\u1ed5ng thu th\u1eadp th\u00f4ng tin x\u00e1c th\u1ef1c, c\u00e0i \u0111\u1eb7t ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i ho\u1eb7c l\u00e0m t\u1ed5n h\u1ea1i m\u1ea1ng c\u00f4ng ty. H\u01b0\u1edbng d\u1eabn n\u00e0y bao g\u1ed3m c\u00e1c y\u1ebfu t\u1ed1 ch\u00ednh \u0111\u1eb1ng sau c\u00e1c m\u1ed1i \u0111e d\u1ecda QR hi\u1ec7n \u0111\u1ea1i v\u00e0 ph\u00e1c th\u1ea3o c\u00e1c chi\u1ebfn l\u01b0\u1ee3c c\u00f3 th\u1ec3 h\u00e0nh \u0111\u1ed9ng \u0111\u1ec3 b\u1ea3o v\u1ec7 h\u1ec7 th\u1ed1ng v\u00e0 chi\u1ebfn d\u1ecbch c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Hi\u1ec3u v\u1ec1 b\u1ed1i c\u1ea3nh c\u00e1c m\u1ed1i \u0111e d\u1ecda m\u00e3 QR<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e3 QR \u0111\u00f3ng vai tr\u00f2 l\u00e0 l\u1ed1i t\u1eaft ti\u1ec7n l\u1ee3i gi\u1eefa kh\u00f4ng gian v\u1eadt l\u00fd v\u00e0 \u0111i\u1ec3m \u0111\u1ebfn k\u1ef9 thu\u1eadt s\u1ed1, nh\u01b0ng thi\u1ebft k\u1ebf k\u1ef9 thu\u1eadt c\u1ee7a ch\u00fang l\u1ea1i t\u1ea1o ra m\u1ed9t \u0111i\u1ec3m m\u00f9 c\u1ed1 h\u1eefu. V\u00ec ma tr\u1eadn \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a kh\u00f4ng th\u1ec3 \u0111\u1ecdc \u0111\u01b0\u1ee3c b\u1eb1ng m\u1eaft th\u01b0\u1eddng, ng\u01b0\u1eddi d\u00f9ng kh\u00f4ng th\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1eabu d\u1eabn \u0111\u1ebfn \u0111\u00e2u ch\u1ec9 b\u1eb1ng c\u00e1ch nh\u00ecn v\u00e0o n\u00f3. T\u1ed9i ph\u1ea1m m\u1ea1ng khai th\u00e1c s\u1ef1 m\u1edd \u0111\u1ee5c n\u00e0y \u0111\u1ec3 th\u1ef1c hi\u1ec7n \u201cquishing\u201d ho\u1eb7c l\u1eeba \u0111\u1ea3o qua m\u00e3 QR.<\/p>\n\n\n\n<figure><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/09\/simple-clean-infographic-about-qr-code-security-square-or-vertical-9-16-layout-5985-422bdc5f73a9-c5e0a1f94bf3.webp\" alt=\"M\u1eb9o b\u1ea3o m\u1eadt m\u00e3 QR\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ebb t\u1ea5n c\u00f4ng l\u1ee3i d\u1ee5ng th\u00f3i quen qu\u00e9t tr\u00ean thi\u1ebft b\u1ecb di \u0111\u1ed9ng \u0111\u1ec3 b\u1ecf qua c\u00e1c bi\u1ec7n ph\u00e1p ph\u00f2ng th\u1ee7 truy\u1ec1n th\u1ed1ng. Trong khi c\u00e1c tr\u00ecnh duy\u1ec7t m\u00e1y t\u00ednh \u0111\u1ec3 b\u00e0n th\u01b0\u1eddng tri\u1ec3n khai c\u00e1c ti\u1ec7n \u00edch m\u1edf r\u1ed9ng l\u1ecdc web m\u1ea1nh m\u1ebd v\u00e0 b\u1ea3o v\u1ec7 \u0111i\u1ec3m cu\u1ed1i, thi\u1ebft b\u1ecb di \u0111\u1ed9ng th\u01b0\u1eddng thi\u1ebfu c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. H\u01a1n n\u1eefa, c\u00e1c t\u00e1c nh\u00e2n \u0111\u1ed9c h\u1ea1i th\u01b0\u1eddng nh\u00fang m\u00e3 v\u00e0o c\u00e1c t\u00e0i li\u1ec7u PDF ho\u1eb7c Word \u0111\u01b0\u1ee3c g\u1eedi qua email. C\u00e1c b\u1ed9 l\u1ecdc b\u1ea3o m\u1eadt th\u01b0\u1eddng qu\u00e9t n\u1ed9i dung v\u0103n b\u1ea3n h\u01a1n l\u00e0 h\u00ecnh \u1ea3nh \u0111\u01b0\u1ee3c nh\u00fang, cho ph\u00e9p c\u00e1c li\u00ean k\u1ebft l\u1eeba \u0111\u1ea3o \u0111i th\u1eb3ng v\u00e0o h\u1ed9p th\u01b0 \u0111\u1ebfn c\u1ee7a nh\u00e2n vi\u00ean. Hi\u1ec3u nh\u1eefng \u0111i\u1ec1u n\u00e0y <a href=\"https:\/\/pageloot.com\/vi\/blog\/qr-code-phishing-business-risks-and-fixes\/\">c\u00e1c r\u1ee7i ro kinh doanh v\u00e0 c\u00e1ch kh\u1eafc ph\u1ee5c l\u1eeba \u0111\u1ea3o qua m\u00e3 QR<\/a> l\u00e0 b\u01b0\u1edbc \u0111\u1ea7u ti\u00ean \u0111\u1ec3 gi\u1ea3m thi\u1ec3u gi\u00e1n \u0111o\u1ea1n ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c y\u1ebfu t\u1ed1 t\u1ea5n c\u00f4ng ph\u1ed5 bi\u1ebfn v\u00e0 d\u1ea5u hi\u1ec7u c\u1ea3nh b\u00e1o<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3o v\u1ec7 m\u00f4i tr\u01b0\u1eddng c\u1ee7a b\u1ea1n \u0111\u00f2i h\u1ecfi ph\u1ea3i nh\u1eadn bi\u1ebft c\u00e1ch k\u1ebb t\u1ea5n c\u00f4ng ph\u00e2n ph\u1ed1i c\u00e1c t\u1ea3i tr\u1ecdng \u0111\u1ed9c h\u1ea1i. Ngo\u00e0i c\u00e1c l\u1ed7 h\u1ed5ng k\u1ef9 thu\u1eadt, h\u00e3y xem x\u00e9t r\u1ed9ng h\u01a1n v\u1ec1 <a href=\"https:\/\/pageloot.com\/vi\/blog\/qr-code-privacy-risks-and-how-to-avoid-them\/\">r\u1ee7i ro v\u1ec1 quy\u1ec1n ri\u00eang t\u01b0 c\u1ee7a m\u00e3 QR v\u00e0 c\u00e1ch tr\u00e1nh ch\u00fang<\/a> khi thu th\u1eadp d\u1eef li\u1ec7u \u0111o t\u1eeb xa qu\u00e9t. C\u00e1c s\u01a1 \u0111\u1ed3 tri\u1ec3n khai ph\u1ed5 bi\u1ebfn bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>L\u1eeba \u0111\u1ea3o qua \u0111\u0103ng nh\u1eadp l\u1eeba \u0111\u1ea3o: C\u00e1c c\u1ed5ng th\u00f4ng tin gian l\u1eadn b\u1eaft ch\u01b0\u1edbc c\u00e1c n\u1ec1n t\u1ea3ng doanh nghi\u1ec7p nh\u01b0 Microsoft 365 ho\u1eb7c c\u1ed5ng ng\u00e2n h\u00e0ng \u0111\u1ec3 thu th\u1eadp th\u00f4ng tin \u0111\u0103ng nh\u1eadp c\u1ee7a nh\u00e2n vi\u00ean.<\/li>\n<li>Che ph\u1ee7 b\u1eb1ng nh\u00e3n d\u00e1n v\u1eadt l\u00fd: K\u1ebb th\u00f9 \u0111\u1eb7t c\u00e1c \u0111\u1ec1 can d\u00e1n in tr\u1ef1c ti\u1ebfp l\u00ean c\u00e1c m\u00e3 x\u00e1c th\u1ef1c tr\u00ean \u0111\u1ed3ng h\u1ed3 \u0111\u1ed7 xe, bi\u1ec3n b\u00e1o giao th\u00f4ng v\u00e0 qu\u1ea7y b\u00e1n l\u1ebb.<\/li>\n<li>Chuy\u1ec3n h\u01b0\u1edbng \u0111\u1ed9c h\u1ea1i b\u1ecb l\u00e0m sai l\u1ec7ch: K\u1ebb t\u1ea5n c\u00f4ng s\u1eed d\u1ee5ng tr\u00ecnh r\u00fat g\u1ecdn URL ho\u1eb7c t\u1eadp l\u1ec7nh chuy\u1ec3n h\u01b0\u1edbng th\u1ee9 c\u1ea5p \u0111\u1ec3 \u0111\u01b0a ng\u01b0\u1eddi d\u00f9ng \u0111\u1ebfn c\u00e1c trang web l\u01b0u tr\u1eef ph\u1ea7n m\u1ec1m \u0111\u1ed9c h\u1ea1i ho\u1eb7c t\u1ea3i xu\u1ed1ng kh\u00f4ng c\u1ea7n t\u01b0\u01a1ng t\u00e1c.<\/li>\n<li>H\u1ec7 th\u1ed1ng thanh to\u00e1n gi\u1ea3 m\u1ea1o: C\u00e1c m\u00e3 thanh to\u00e1n b\u1ecb gi\u1ea3 m\u1ea1o s\u1ebd chuy\u1ec3n giao d\u1ecbch c\u1ee7a kh\u00e1ch h\u00e0ng v\u00e0o t\u00e0i kho\u1ea3n c\u1ee7a k\u1ebb t\u1ea5n c\u00f4ng thay v\u00ec b\u1ed9 x\u1eed l\u00fd thanh to\u00e1n c\u1ee7a ng\u01b0\u1eddi b\u00e1n.<\/li>\n<li>L\u1eeba \u0111\u1ea3o nh\u00fang t\u00e0i li\u1ec7u (quishing): K\u1ebb l\u1eeba \u0111\u1ea3o ph\u00e2n ph\u1ed1i h\u00f3a \u0111\u01a1n ho\u1eb7c b\u1ea3n ghi nh\u1edb kh\u1ea9n c\u1ea5p c\u1ee7a c\u00f4ng ty ch\u1ee9a m\u00e3 nh\u00fang \u0111\u1ec3 v\u01b0\u1ee3t qua c\u1ed5ng email doanh nghi\u1ec7p.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Tr\u01b0\u1edbc khi t\u01b0\u01a1ng t\u00e1c v\u1edbi bi\u1ec3n b\u00e1o v\u1eadt l\u00fd, ng\u01b0\u1eddi d\u00f9ng n\u00ean t\u00ecm hi\u1ec3u c\u00e1ch <a href=\"https:\/\/pageloot.com\/vi\/how-to\/spot-fake-qr-codes\/\">ph\u00e1t hi\u1ec7n m\u00e3 QR gi\u1ea3 m\u1ea1o<\/a> b\u1eb1ng c\u00e1ch ki\u1ec3m tra c\u00e1c c\u1ea1nh kh\u00f4ng th\u1eb3ng h\u00e0ng, h\u1ecda ti\u1ebft b\u1ea5t th\u01b0\u1eddng ho\u1eb7c th\u01b0\u01a1ng hi\u1ec7u kh\u00f4ng kh\u1edbp.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c chi\u1ebfn l\u01b0\u1ee3c k\u1ef9 thu\u1eadt \u0111\u1ec3 t\u1ea1o m\u00e3 QR an to\u00e0n<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u1ed5 ch\u1ee9c xu\u1ea5t b\u1ea3n m\u00e3 QR ph\u1ea3i k\u1ebft h\u1ee3p c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t ph\u00f2ng th\u1ee7 trong qu\u00e1 tr\u00ecnh t\u1ea1o. Vi\u1ec7c tri\u1ec3n khai <a href=\"https:\/\/pageloot.com\/vi\/blog\/secure-qr-code-generation-best-practices\/\">c\u00e1c ph\u01b0\u01a1ng ph\u00e1p hay nh\u1ea5t \u0111\u1ec3 t\u1ea1o m\u00e3 QR an to\u00e0n<\/a> ng\u0103n ch\u1eb7n vi\u1ec7c gi\u1ea3 m\u1ea1o tr\u00e1i ph\u00e9p v\u00e0 duy tr\u00ec s\u1ef1 tin c\u1eady c\u1ee7a th\u01b0\u01a1ng hi\u1ec7u.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u01afu ti\u00ean m\u00e3 QR \u0111\u1ed9ng<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u00e3 t\u0129nh nh\u00fang URL \u0111\u00edch tr\u1ef1c ti\u1ebfp v\u00e0o b\u1ed1 c\u1ee5c pixel. Sau khi in, \u0111\u00edch \u0111\u1ebfn kh\u00f4ng th\u1ec3 thay \u0111\u1ed5i; n\u1ebfu \u0111i\u1ec3m cu\u1ed1i b\u1ecb x\u00e2m ph\u1ea1m ho\u1eb7c c\u1ea5u h\u00ecnh sai, t\u00e0i s\u1ea3n v\u1eadt l\u00fd ph\u1ea3i b\u1ecb lo\u1ea1i b\u1ecf. M\u00e3 QR \u0111\u1ed9ng \u0111\u1ecbnh tuy\u1ebfn th\u00f4ng qua m\u1ed9t li\u00ean k\u1ebft ng\u1eafn trung gian, cho ph\u00e9p qu\u1ea3n tr\u1ecb vi\u00ean to\u00e0n quy\u1ec1n ki\u1ec3m so\u00e1t \u0111\u1ec3 c\u1eadp nh\u1eadt URL ho\u1eb7c thu h\u1ed3i quy\u1ec1n truy c\u1eadp ngay l\u1eadp t\u1ee9c. C\u00e1c n\u1ec1n t\u1ea3ng \u0111\u1ed9ng c\u0169ng ghi l\u1ea1i d\u1eef li\u1ec7u \u0111o t\u1eeb xa v\u1ec1 l\u01b0\u1ee3t qu\u00e9t \u2013 ch\u1eb3ng h\u1ea1n nh\u01b0 d\u1ea5u th\u1eddi gian, v\u1ecb tr\u00ed chung v\u00e0 lo\u1ea1i thi\u1ebft b\u1ecb \u2013 cho ph\u00e9p c\u00e1c nh\u00f3m b\u1ea3o m\u1eadt ph\u00e1t hi\u1ec7n c\u00e1c \u0111\u1ee3t t\u0103ng l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp b\u1ea5t th\u01b0\u1eddng.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00c1p d\u1ee5ng c\u00e1c ti\u00eau chu\u1ea9n m\u00e3 h\u00f3a v\u00e0 HTTPS nghi\u00eam ng\u1eb7t<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Lu\u00f4n c\u1ea5u h\u00ecnh \u0111\u00edch \u0111\u1ebfn c\u1ee7a QR \u0111\u1ec3 ph\u00e2n gi\u1ea3i qua c\u00e1c k\u1ebft n\u1ed1i HTTPS an to\u00e0n \u0111\u01b0\u1ee3c x\u00e1c minh b\u1eb1ng ch\u1ee9ng ch\u1ec9 SSL\/TLS \u0111\u00e1ng tin c\u1eady. C\u00e1c giao th\u1ee9c b\u1ea3o m\u1eadt b\u1ea3o v\u1ec7 t\u00ednh to\u00e0n v\u1eb9n c\u1ee7a d\u1eef li\u1ec7u khi truy\u1ec1n gi\u1eefa tr\u00ecnh duy\u1ec7t di \u0111\u1ed9ng v\u00e0 m\u00e1y ch\u1ee7 c\u1ee7a b\u1ea1n. \u0110\u1ed1i v\u1edbi c\u00e1c chi\u1ebfn d\u1ecbch ch\u1ee9a t\u1ec7p \u0111\u1ed9c quy\u1ec1n ho\u1eb7c quy tr\u00ecnh l\u00e0m vi\u1ec7c b\u1ecb h\u1ea1n ch\u1ebf, h\u00e3y tri\u1ec3n khai c\u00e1c r\u00e0o c\u1ea3n truy c\u1eadp th\u1ee9 c\u1ea5p nh\u01b0 x\u00e1c minh m\u1eadt kh\u1ea9u, m\u00e3 th\u00f4ng b\u00e1o truy c\u1eadp ho\u1eb7c x\u00e1c th\u1ef1c \u0111\u0103ng nh\u1eadp m\u1ed9t l\u1ea7n (SSO).<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u00c1p d\u1ee5ng c\u00e1c c\u00e0i \u0111\u1eb7t tr\u01b0\u1edbc v\u1ec1 thi\u1ebft k\u1ebf v\u00e0 th\u01b0\u01a1ng hi\u1ec7u t\u00f9y ch\u1ec9nh<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u1eabu hoa v\u0103n \u0111en tr\u1eafng chung chung r\u1ea5t d\u1ec5 b\u1ecb k\u1ebb l\u1eeba \u0111\u1ea3o sao ch\u00e9p v\u00e0 che gi\u1ea5u b\u1eb1ng c\u00e1c nh\u00e3n d\u00e1n v\u1eadt l\u00fd. Vi\u1ec7c t\u1ea1o ra c\u00e1c m\u00e3 t\u00f9y ch\u1ec9nh c\u00f3 b\u1ea3ng m\u00e0u ch\u00ednh th\u1ee9c c\u1ee7a b\u1ea1n, logo c\u00f4ng ty \u0111\u01b0\u1ee3c nh\u00fang v\u00e0 khung c\u00f3 c\u1ea5u tr\u00fac s\u1ebd t\u1ea1o ra s\u1ef1 tin c\u1eady v\u1ec1 m\u1eb7t h\u00ecnh \u1ea3nh. M\u1ed9t nh\u00e3n d\u00e1n gi\u1ea3 m\u1ea1o chung chung \u0111\u01b0\u1ee3c d\u00e1n ch\u1ed3ng l\u00ean m\u1ed9t t\u00e0i s\u1ea3n c\u00f3 th\u01b0\u01a1ng hi\u1ec7u ri\u00eang bi\u1ec7t s\u1ebd d\u1ec5 d\u00e0ng b\u1ecb ng\u01b0\u1eddi d\u00f9ng c\u1ea3nh gi\u00e1c ph\u00e1t hi\u1ec7n.<\/p>\n\n\n\n<blockquote class=\"is-layout-flow wp-block-quote-is-layout-flow\">\n<p><strong>Ki\u1ec3m so\u00e1t v\u00e0 b\u1ea3o v\u1ec7 c\u00e1c \u0111i\u1ec3m ti\u1ebfp x\u00fac c\u1ee7a b\u1ea1n<\/strong> Ki\u1ec3m so\u00e1t ho\u00e0n to\u00e0n c\u00e1c chi\u1ebfn d\u1ecbch tr\u1ef1c ti\u1ebfp c\u1ee7a b\u1ea1n b\u1eb1ng c\u00e1ch c\u1eadp nh\u1eadt \u0111i\u1ec3m \u0111\u1ebfn ngay l\u1eadp t\u1ee9c v\u00e0 v\u00f4 hi\u1ec7u h\u00f3a c\u00e1c li\u00ean k\u1ebft b\u1ecb x\u00e2m ph\u1ea1m t\u1eeb m\u1ed9t b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n trung t\u00e2m. T\u1ea1o c\u00e1c li\u00ean k\u1ebft an to\u00e0n, c\u00f3 th\u1ec3 theo d\u00f5i b\u1eb1ng <a href=\"https:\/\/pageloot.com\/vi\/dynamic-qr-code-generator\/\">T\u1ea1o m\u00e3 QR \u0111\u1ed9ng<\/a> c\u1ee7a ch\u00fang t\u00f4i ngay h\u00f4m nay.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ea3o v\u1ec7 vi\u1ec7c tri\u1ec3n khai m\u00e3 QR v\u1eadt l\u00fd<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">B\u1ea3o m\u1eadt t\u00e0i s\u1ea3n v\u1eadt l\u00fd c\u0169ng quan tr\u1ecdng nh\u01b0 b\u1ea3o v\u1ec7 k\u1ef9 thu\u1eadt s\u1ed1. Khi tri\u1ec3n khai b\u1ea3ng hi\u1ec7u, bao b\u00ec s\u1ea3n ph\u1ea9m ho\u1eb7c qu\u1ea3ng c\u00e1o ngo\u00e0i tr\u1eddi, h\u00e3y thi\u1ebft l\u1eadp c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 ng\u0103n ch\u1eb7n vi\u1ec7c gi\u1ea3 m\u1ea1o:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Ki\u1ec3m tra t\u00e0i s\u1ea3n in \u1ea5n th\u01b0\u1eddng xuy\u00ean: Thi\u1ebft l\u1eadp l\u1ecbch tr\u00ecnh ki\u1ec3m tra cho c\u00e1c khu v\u1ef1c c\u00f3 l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp cao \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c nh\u00e3n d\u00e1n b\u1ecb bong tr\u00f3c, khung b\u1ecb h\u1ecfng ho\u1eb7c c\u00e1c \u0111\u1ec1 can d\u00e1n ch\u1ed3ng.<\/li>\n<li>B\u1ecdc m\u00e3 trong v\u1ecf b\u1ea3o v\u1ec7: G\u1eafn c\u00e1c m\u00e0n h\u00ecnh c\u00f4ng c\u1ed9ng sau k\u00ednh, khung acrylic ho\u1eb7c v\u1eadt li\u1ec7u c\u00e1n m\u00e0ng ch\u1ed1ng gi\u1ea3 m\u1ea1o \u0111\u1ec3 ng\u0103n ch\u1eb7n c\u00e1c thay \u0111\u1ed5i v\u1eadt l\u00fd tr\u00e1i ph\u00e9p.<\/li>\n<li>Cung c\u1ea5p h\u01b0\u1edbng d\u1eabn ng\u1eef c\u1ea3nh r\u00f5 r\u00e0ng: In v\u0103n b\u1ea3n k\u00eau g\u1ecdi h\u00e0nh \u0111\u1ed9ng r\u00f5 r\u00e0ng v\u00e0 ch\u1ec9 \u0111\u1ecbnh t\u00ean mi\u1ec1n \u0111\u00edch ch\u00ednh x\u00e1c \u0111\u1ec3 ng\u01b0\u1eddi d\u00f9ng bi\u1ebft \u0111\u1ecba ch\u1ec9 web n\u00e0o s\u1ebd \u0111\u01b0\u1ee3c mong \u0111\u1ee3i.<\/li>\n<li>V\u00f4 hi\u1ec7u h\u00f3a c\u00e1c t\u00e0i li\u1ec7u l\u1ed7i th\u1eddi: Ng\u1eebng c\u00e1c chi\u1ebfn d\u1ecbch \u0111\u00e3 k\u1ebft th\u00fac b\u1eb1ng c\u00e1ch l\u01b0u tr\u1eef c\u00e1c li\u00ean k\u1ebft chuy\u1ec3n h\u01b0\u1edbng c\u1ee7a ch\u00fang v\u00e0 lo\u1ea1i b\u1ecf c\u00e1c t\u00e0i li\u1ec7u v\u1eadt l\u00fd \u0111\u00e3 h\u1ebft h\u1ea1n.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">V\u1ec7 sinh qu\u00e9t v\u00e0 ph\u00f2ng th\u1ee7 t\u1ed5 ch\u1ee9c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e0o t\u1ea1o nh\u00e2n vi\u00ean t\u01b0\u01a1ng t\u00e1c an to\u00e0n v\u1edbi m\u00e3 QR s\u1ebd thu h\u1eb9p kho\u1ea3ng c\u00e1ch gi\u1eefa c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 k\u1ef9 thu\u1eadt v\u00e0 h\u00e0nh vi c\u1ee7a con ng\u01b0\u1eddi.<\/p>\n\n\n\n<figure><img decoding=\"async\" src=\"https:\/\/pageloot.com\/wp-content\/uploads\/2026\/09\/simple-modern-illustration-square-1-1-format-white-background-with-blue-and-li-2029-784db2315bdf-f1bca3a77ca2.webp\" alt=\"Qu\u00e9t m\u00e3 QR an to\u00e0n\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110i\u1ec7n tho\u1ea1i th\u00f4ng minh hi\u1ec3n th\u1ecb b\u1ea3n xem tr\u01b0\u1edbc li\u00ean k\u1ebft tr\u01b0\u1edbc khi m\u1edf \u0111i\u1ec3m \u0111\u1ebfn trong tr\u00ecnh duy\u1ec7t. Ng\u01b0\u1eddi d\u00f9ng ph\u1ea3i ki\u1ec3m tra b\u1ea3n xem tr\u01b0\u1edbc n\u00e0y \u0111\u1ec3 ph\u00e1t hi\u1ec7n c\u00e1c th\u1ee7 \u0111o\u1ea1n l\u1eeba \u0111\u1ea3o, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u00ean mi\u1ec1n b\u1ecb l\u1ed7i ch\u00ednh t\u1ea3, ch\u1eef c\u00e1i b\u1ecb \u0111\u1ea3o ho\u1eb7c c\u00e1c t\u00ean mi\u1ec1n ph\u1ee5 kh\u00f4ng h\u1ee3p l\u1ec7 \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 b\u1eaft ch\u01b0\u1edbc c\u00e1c th\u01b0\u01a1ng hi\u1ec7u h\u1ee3p ph\u00e1p. Khi qu\u00e9t c\u00e1c m\u00e3 kh\u00f4ng quen thu\u1ed9c, vi\u1ec7c s\u1eed d\u1ee5ng m\u1ed9t c\u00f4ng c\u1ee5 d\u1ef1a tr\u00ean web <a href=\"https:\/\/pageloot.com\/vi\/qr-code-scanner\/\">Qu\u00e9t m\u00e3 QR<\/a> ho\u1eb7c m\u1ed9t c\u00f4ng c\u1ee5 c\u00f3 l\u1eddi nh\u1eafc x\u00e1c minh g\u1ed1c gi\u00fap ph\u00e2n t\u00edch li\u00ean k\u1ebft tr\u01b0\u1edbc khi b\u1ea1n t\u1ea3i trang.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c t\u1ed5 ch\u1ee9c c\u0169ng n\u00ean \u0111\u00e1nh gi\u00e1 c\u00e1c chuy\u00ean m\u00f4n <a href=\"https:\/\/pageloot.com\/vi\/blog\/top-tools-to-detect-qr-code-phishing\/\">c\u00f4ng c\u1ee5 chuy\u00ean bi\u1ec7t \u0111\u1ec3 ph\u00e1t hi\u1ec7n l\u1eeba \u0111\u1ea3o m\u00e3 QR<\/a> \u0111\u1ec3 s\u00e0ng l\u1ecdc t\u1ec7p \u0111\u00ednh k\u00e8m email \u0111\u1ebfn v\u00e0 gi\u00e1m s\u00e1t ho\u1ea1t \u0111\u1ed9ng qu\u00e9t b\u1ea5t th\u01b0\u1eddng. Vi\u1ec7c k\u1ebft h\u1ee3p ph\u1ea7n m\u1ec1m qu\u00e9t ph\u00f2ng th\u1ee7 v\u1edbi x\u00e1c th\u1ef1c \u0111a y\u1ebfu t\u1ed1 (MFA) \u0111\u1ea3m b\u1ea3o r\u1eb1ng ngay c\u1ea3 khi nh\u00e2n vi\u00ean nh\u1eadp th\u00f4ng tin \u0111\u0103ng nh\u1eadp c\u1ee7a h\u1ecd tr\u00ean m\u1ed9t trang \u0111\u00edch l\u1eeba \u0111\u1ea3o, quy\u1ec1n truy c\u1eadp tr\u00e1i ph\u00e9p v\u1eabn b\u1ecb ch\u1eb7n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ec3 b\u1ea3o v\u1ec7 th\u01b0\u01a1ng hi\u1ec7u v\u00e0 \u0111\u1ed1i t\u01b0\u1ee3ng c\u1ee7a b\u1ea1n, h\u00e3y \u0111\u00e1nh gi\u00e1 m\u1ecdi \u0111i\u1ec3m ti\u1ebfp x\u00fac t\u1eeb khi t\u1ea1o \u0111\u1ebfn khi qu\u00e9t cu\u1ed1i c\u00f9ng. Tri\u1ec3n khai c\u00e1c li\u00ean k\u1ebft \u0111\u1ed9ng gi\u00fap b\u1ea1n ki\u1ec3m so\u00e1t ngay l\u1eadp t\u1ee9c c\u00e1c \u0111\u00edch \u0111\u1ebfn c\u1ee7a m\u00ecnh, gi\u00e1m s\u00e1t c\u00e1c m\u1eabu l\u01b0u l\u01b0\u1ee3ng truy c\u1eadp \u0111\u1ec3 t\u00ecm c\u00e1c \u0111i\u1ec3m b\u1ea5t th\u01b0\u1eddng v\u00e0 c\u1ee7ng c\u1ed1 th\u00f3i quen qu\u00e9t an to\u00e0n trong to\u00e0n b\u1ed9 l\u1ef1c l\u01b0\u1ee3ng lao \u0111\u1ed9ng c\u1ee7a b\u1ea1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/h2>\n\n\n\n<div class=\"schema-faq\"><div class=\"schema-faq-section\" id=\"faq-question-ce86e7970ba0\"><strong class=\"schema-faq-question\">B\u1ea3n th\u00e2n m\u00e3 QR c\u00f3 \u0111\u1ed9c h\u1ea1i kh\u00f4ng?<\/strong> <p class=\"schema-faq-answer\">Kh\u00f4ng. M\u00e3 QR l\u00e0 ph\u01b0\u01a1ng ti\u1ec7n mang d\u1eef li\u1ec7u trung l\u1eadp, m\u00e3 h\u00f3a v\u0103n b\u1ea3n ho\u1eb7c URL. M\u1ed1i \u0111e d\u1ecda m\u1ea1ng ho\u00e0n to\u00e0n xu\u1ea5t ph\u00e1t t\u1eeb li\u00ean k\u1ebft \u0111\u00edch \u0111\u01b0\u1ee3c nh\u00fang trong m\u00e3, c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn c\u00e1c trang l\u1eeba \u0111\u1ea3o (phishing), t\u1ec7p \u0111\u1ed9c h\u1ea1i ho\u1eb7c h\u1ec7 th\u1ed1ng thanh to\u00e1n kh\u00f4ng \u0111\u01b0\u1ee3c \u1ee7y quy\u1ec1n.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-79b7a4b63abc\"><strong class=\"schema-faq-question\">T\u1ea1i sao m\u00e3 QR \u0111\u1ed9ng an to\u00e0n h\u01a1n khi s\u1eed d\u1ee5ng trong kinh doanh?<\/strong> <p class=\"schema-faq-answer\">M\u00e3 \u0111\u1ed9ng cho ph\u00e9p qu\u1ea3n tr\u1ecb vi\u00ean thay \u0111\u1ed5i URL \u0111\u00edch ho\u1eb7c h\u1ee7y k\u00edch ho\u1ea1t li\u00ean k\u1ebft b\u1ea5t c\u1ee9 l\u00fac n\u00e0o m\u00e0 kh\u00f4ng c\u1ea7n in l\u1ea1i m\u00e3 v\u1eadt l\u00fd. \u0110i\u1ec1u n\u00e0y cung c\u1ea5p m\u1ed9t c\u00f4ng t\u1eafc ng\u1eaft kh\u1ea9n c\u1ea5p nhanh ch\u00f3ng n\u1ebfu m\u1ed9t \u0111i\u1ec3m \u0111\u1ebfn b\u1ecb x\u00e2m ph\u1ea1m ho\u1eb7c b\u1ecb g\u1eafn c\u1edd v\u00ec ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9c h\u1ea1i.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-cb02f7d796c6\"><strong class=\"schema-faq-question\">T\u00f4i n\u00ean l\u00e0m g\u00ec n\u1ebfu t\u00f4i qu\u00e9t ph\u1ea3i m\u00e3 QR \u0111\u00e1ng ng\u1edd?<\/strong> <p class=\"schema-faq-answer\">\u0110\u00f3ng tr\u00ecnh duy\u1ec7t ngay l\u1eadp t\u1ee9c m\u00e0 kh\u00f4ng nh\u1eadp th\u00f4ng tin c\u00e1 nh\u00e2n ho\u1eb7c t\u1ea3i xu\u1ed1ng t\u1ec7p. N\u1ebfu b\u1ea1n \u0111\u00e3 g\u1eedi m\u1eadt kh\u1ea9u ho\u1eb7c d\u1eef li\u1ec7u nh\u1ea1y c\u1ea3m, h\u00e3y thay \u0111\u1ed5i th\u00f4ng tin \u0111\u0103ng nh\u1eadp c\u1ee7a b\u1ea1n tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c t\u00e0i kho\u1ea3n li\u00ean quan ngay l\u1eadp t\u1ee9c v\u00e0 th\u00f4ng b\u00e1o cho \u0111\u1ed9i ng\u0169 b\u1ea3o m\u1eadt IT c\u1ee7a b\u1ea1n.<\/p> <\/div> <\/div>","protected":false},"excerpt":{"rendered":"<p>B\u1ea3o v\u1ec7 t\u1ed5 ch\u1ee9c c\u1ee7a b\u1ea1n kh\u1ecfi c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng m\u1ea1ng b\u1eb1ng m\u00e3 QR v\u00e0 quishing. Kh\u00e1m ph\u00e1 b\u1ea3o m\u1eadt m\u00e3 QR \u0111\u1ed9ng, c\u00e1c bi\u1ec7n ph\u00e1p b\u1ea3o v\u1ec7 v\u1eadt l\u00fd v\u00e0 th\u1ef1c h\u00e0nh qu\u00e9t an to\u00e0n.<\/p>","protected":false},"author":17,"featured_media":56406,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[2635],"tags":[],"class_list":["post-45038","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.7 (Yoast SEO v28.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>How to Secure QR Codes from Cyber Attacks<\/title>\n<meta name=\"description\" content=\"Protect your business from quishing and QR code phishing. Learn to use dynamic codes, branding, and regular audits to secure data and prevent cyber attacks.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pageloot.com\/vi\/blog\/best-practices-for-qr-code-security-in-cyber-defense\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to Secure QR Codes from Cyber Attacks\" \/>\n<meta property=\"og:description\" content=\"Protect your business from quishing and QR code phishing. 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Siim c\u00f3 n\u1ec1n t\u1ea3ng k\u1ef9 thu\u1eadt s\u1ed1 s\u00e2u r\u1ed9ng v\u1edbi h\u01a1n 10 n\u0103m kinh nghi\u1ec7m v\u1eefng ch\u1eafc trong l\u0129nh v\u1ef1c Ph\u1ea7n m\u1ec1m d\u01b0\u1edbi d\u1ea1ng d\u1ecbch v\u1ee5 (SaaS), m\u1ed9t minh ch\u1ee9ng cho ki\u1ebfn th\u1ee9c s\u00e2u r\u1ed9ng c\u1ee7a \u00f4ng v\u1ec1 c\u00e1c gi\u1ea3i ph\u00e1p k\u1ef9 thu\u1eadt s\u1ed1.","sameAs":["https:\/\/www.linkedin.com\/in\/siim-tiigimagi\/"]},{"@type":"Question","@id":"https:\/\/pageloot.com\/blog\/best-practices-for-qr-code-security-in-cyber-defense\/#faq-question-ce86e7970ba0","position":1,"url":"https:\/\/pageloot.com\/blog\/best-practices-for-qr-code-security-in-cyber-defense\/#faq-question-ce86e7970ba0","name":"B\u1ea3n th\u00e2n m\u00e3 QR c\u00f3 \u0111\u1ed9c h\u1ea1i kh\u00f4ng?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. QR codes are neutral data carriers that encode text or URLs. The cyber threat stems entirely from the destination link embedded within the code, which can point to phishing pages, malicious files, or unauthorized payment systems.","inLanguage":"vi"},"inLanguage":"vi"},{"@type":"Question","@id":"https:\/\/pageloot.com\/blog\/best-practices-for-qr-code-security-in-cyber-defense\/#faq-question-79b7a4b63abc","position":2,"url":"https:\/\/pageloot.com\/blog\/best-practices-for-qr-code-security-in-cyber-defense\/#faq-question-79b7a4b63abc","name":"T\u1ea1i sao m\u00e3 QR \u0111\u1ed9ng an to\u00e0n h\u01a1n khi s\u1eed d\u1ee5ng trong kinh doanh?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Dynamic codes allow administrators to change the destination URL or deactivate the link at any time without reprinting the physical code. This provides a rapid kill-switch if a destination is compromised or flagged for malicious activity.","inLanguage":"vi"},"inLanguage":"vi"},{"@type":"Question","@id":"https:\/\/pageloot.com\/blog\/best-practices-for-qr-code-security-in-cyber-defense\/#faq-question-cb02f7d796c6","position":3,"url":"https:\/\/pageloot.com\/blog\/best-practices-for-qr-code-security-in-cyber-defense\/#faq-question-cb02f7d796c6","name":"T\u00f4i n\u00ean l\u00e0m g\u00ec n\u1ebfu t\u00f4i qu\u00e9t ph\u1ea3i m\u00e3 QR \u0111\u00e1ng ng\u1edd?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Close the browser immediately without entering personal details or downloading files. If you submitted passwords or sensitive data, change your credentials across all relevant accounts immediately and notify your IT security team.","inLanguage":"vi"},"inLanguage":"vi"}]}},"_links":{"self":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts\/45038","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/users\/17"}],"replies":[{"embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/comments?post=45038"}],"version-history":[{"count":8,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts\/45038\/revisions"}],"predecessor-version":[{"id":56683,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/posts\/45038\/revisions\/56683"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/media\/56406"}],"wp:attachment":[{"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/media?parent=45038"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/categories?post=45038"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pageloot.com\/vi\/wp-json\/wp\/v2\/tags?post=45038"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}