{"id":1374,"date":"2025-12-24T02:06:30","date_gmt":"2025-12-24T02:06:30","guid":{"rendered":"https:\/\/www.cxjsmartcard.com\/?p=1374"},"modified":"2025-12-24T02:06:32","modified_gmt":"2025-12-24T02:06:32","slug":"preventing-rfid-keyfob-cloning-encryption-whitelists-and-best-practices","status":"publish","type":"post","link":"https:\/\/www.cxjsmartcard.com\/vi\/preventing-rfid-keyfob-cloning-encryption-whitelists-and-best-practices\/","title":{"rendered":"Ng\u0103n ch\u1eb7n vi\u1ec7c sao ch\u00e9p th\u1ebb RFID: M\u00e3 h\u00f3a, danh s\u00e1ch tr\u1eafng v\u00e0 c\u00e1c bi\u1ec7n ph\u00e1p t\u1ed1t nh\u1ea5t"},"content":{"rendered":"<p>N\u1ebfu h\u1ec7 th\u1ed1ng truy c\u1eadp c\u1ee7a b\u1ea1n v\u1eabn &quot;tin t\u01b0\u1edfng v\u00e0o ID&quot;, th\u00ec b\u1ea1n \u0111ang s\u1ed1ng trong t\u00ecnh tr\u1ea1ng nguy hi\u1ec3m. H\u1ea7u h\u1ebft c\u00e1c v\u1ee5 vi\u1ec7c sao ch\u00e9p ch\u00eca kh\u00f3a \u0111i\u1ec7n t\u1eed kh\u00f4ng b\u1eaft \u0111\u1ea7u b\u1eb1ng nh\u1eefng c\u1ea3nh hack ki\u1ec3u Hollywood. Ch\u00fang b\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t thi\u1ebft l\u1eadp x\u1eed l\u00fd ID m\u1ed9t c\u00e1ch thi\u1ebfu c\u1ea9n tr\u1ecdng. <strong>\u0111\u1ecbnh danh t\u0129nh<\/strong> Gi\u1ed1ng nh\u01b0 m\u1ed9t m\u1eadt kh\u1ea9u v\u1eady.<\/p>\n\n\n\n<p>B\u1ea1n c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c \u0111i\u1ec1u \u0111\u00f3. Kh\u00f4ng ph\u1ea3i ch\u1ec9 b\u1eb1ng m\u1ed9t thao t\u00e1c th\u1ea7n k\u1ef3, m\u00e0 b\u1eb1ng m\u1ed9t chu\u1ed7i thao t\u00e1c h\u1ee3p l\u00fd: <strong>M\u00e3 h\u00f3a<\/strong>, <strong>Danh s\u00e1ch tr\u1eafng<\/strong>, v\u00e0 m\u1ed9t s\u1ed1 th\u00f3i quen v\u1eadn h\u00e0nh khi\u1ebfn vi\u1ec7c sao ch\u00e9p th\u00f4ng tin x\u00e1c th\u1ef1c tr\u1edf n\u00ean k\u00e9m hi\u1ec7u qu\u1ea3 h\u01a1n nhi\u1ec1u.<\/p>\n\n\n\n<p>N\u1ebfu b\u1ea1n \u0111ang t\u00ecm ngu\u1ed3n cung c\u1ea5p gi\u1ea5y t\u1edd t\u00f9y th\u00e2n v\u1edbi s\u1ed1 l\u01b0\u1ee3ng l\u1edbn (th\u1ebb t\u1eeb, th\u1ebb, v\u00f2ng \u0111eo tay, nh\u00e3n) v\u00e0 b\u1ea1n mu\u1ed1n c\u00f3 ch\u00fang <strong>in + m\u00e3 h\u00f3a + x\u00e1c minh<\/strong> Trong m\u1ed9t quy tr\u00ecnh duy nh\u1ea5t, th\u1ebb th\u00f4ng minh CXJ \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho ki\u1ec3u tri\u1ec3n khai \u0111\u00f3: OEM\/ODM tr\u1ef1c ti\u1ebfp t\u1eeb nh\u00e0 m\u00e1y, s\u1ed1 l\u01b0\u1ee3ng \u0111\u1eb7t h\u00e0ng t\u1ed1i thi\u1ec3u linh ho\u1ea1t, m\u1eabu nhanh ch\u00f3ng v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng theo ti\u00eau chu\u1ea9n ISO. H\u00e3y xem th\u00eam th\u00f4ng tin chi ti\u1ebft t\u1ea1i \u0111\u00e2y. <a href=\"https:\/\/www.cxjsmartcard.com\/vi\/rfid-keyfobs\/\">M\u00f3c kh\u00f3a RFID<\/a> V\u00e0 <a href=\"https:\/\/www.cxjsmartcard.com\/vi\/services\/\">D\u1ecbch v\u1ee5 OEM\/ODM RFID t\u00f9y ch\u1ec9nh<\/a>.<\/p>\n\n\n\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-0afc888\" id=\"gspb_image-id-gsbp-0afc888\"><img decoding=\"async\" src=\"https:\/\/www.cxjsmartcard.com\/wp-content\/uploads\/2025\/12\/Preventing-RFID-Keyfob-Cloning-Encryption-Whitelists-and-Best-Practices-2.webp\" data-src=\"\" alt=\"\" loading=\"lazy\" width=\"676\" height=\"676\"\/><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"rfid-keyfob-cloning\">Sao ch\u00e9p th\u1ebb RFID<\/h2>\n\n\n\n<p>Vi\u1ec7c nh\u00e2n b\u1ea3n th\u01b0\u1eddng di\u1ec5n ra nh\u01b0 th\u1ebf n\u00e0y:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Th\u1ebb nh\u00e2n vi\u00ean v\u1eabn c\u00f3 t\u00e1c d\u1ee5ng sau khi nh\u00e2n vi\u00ean th\u00f4i vi\u1ec7c (th\u1eadt phi\u1ec1n ph\u1ee9c).<\/li>\n\n\n\n<li>M\u1ed9t th\u1ebb x\u00e1c th\u1ef1c c\u00f3 kh\u1ea3 n\u0103ng &quot;d\u1ecbch chuy\u1ec3n t\u1ee9c th\u1eddi&quot; gi\u1eefa c\u00e1c c\u00e1nh c\u1eeda (th\u1eddi gian kh\u00f4ng th\u1ec3 tr\u00f9ng kh\u1edbp).<\/li>\n\n\n\n<li>Th\u1ebb th\u00e0nh vi\u00ean ph\u00f2ng t\u1eadp b\u1ecb d\u00f9ng chung, v\u00e0 b\u1ed9 ph\u1eadn l\u1ec5 t\u00e2n b\u1ecb \u0111\u1ed5 l\u1ed7i.<\/li>\n\n\n\n<li>H\u1ec7 th\u1ed1ng qu\u1ea3n l\u00fd b\u00e3i \u0111\u1eadu xe s\u1eed d\u1ee5ng c\u00f9ng m\u1ed9t gi\u1ea5y t\u1edd t\u00f9y th\u00e2n su\u1ed1t c\u1ea3 ng\u00e0y, \u1edf m\u1ecdi n\u01a1i.<\/li>\n<\/ul>\n\n\n\n<p>V\u1ea5n \u0111\u1ec1 c\u1ed1t l\u00f5i l\u00e0: nhi\u1ec1u h\u1ec7 th\u1ed1ng tri\u1ec3n khai x\u00e1c th\u1ef1c <strong>CSN\/UID<\/strong> (s\u1ed1 seri th\u1ebb) r\u1ed3i coi nh\u01b0 xong. \u0110i\u1ec1u \u0111\u00f3 gi\u1ed1ng nh\u01b0 ch\u1ec9 ki\u1ec3m tra t\u00ean ng\u01b0\u1eddi d\u00f9ng m\u00e0 b\u1ecf qua m\u1eadt kh\u1ea9u. Kh\u00f4ng t\u1ed1t ch\u00fat n\u00e0o.<\/p>\n\n\n\n<p>\u0110\u1ec3 \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 hi\u1ec3u, \u0111\u00e2y l\u00e0 s\u01a1 \u0111\u1ed3 l\u1eadp lu\u1eadn nhanh m\u00e0 b\u1ea1n c\u00f3 th\u1ec3 \u0111\u01b0a v\u00e0o b\u1ea3n m\u00f4 t\u1ea3 k\u1ef9 thu\u1eadt c\u1ee7a m\u00ecnh.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Ti\u00eau \u0111\u1ec1 b\u00e0i lu\u1eadn<\/th><th>Nh\u1eefng vi\u1ec7c b\u1ea1n n\u00ean l\u00e0m<\/th><th>L\u00fd do t\u1ea1i sao n\u00f3 hi\u1ec7u qu\u1ea3 (gi\u1ea3i th\u00edch \u0111\u01a1n gi\u1ea3n)<\/th><th>Ngu\u1ed3n lu\u1eadn \u0111i\u1ec3m (kh\u00f4ng c\u00f3 li\u00ean k\u1ebft ngo\u00e0i)<\/th><\/tr><\/thead><tbody><tr><td><strong>Ki\u1ec3m so\u00e1t truy c\u1eadp ch\u1ec9 d\u1ef1a tr\u00ean UID l\u00e0 y\u1ebfu.<\/strong><\/td><td>\u0110\u1eebng coi UID nh\u01b0 &quot;m\u1eadt kh\u1ea9u&quot;.\u201c<\/td><td>UID c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c sao ch\u00e9p\/m\u00f4 ph\u1ecfng trong nhi\u1ec1u m\u00f4 h\u00ecnh \u0111e d\u1ecda kh\u00e1c nhau.<\/td><td>Nghi\u00ean c\u1ee9u c\u1ee7a Nethemba + c\u00e1c m\u00f4 h\u00ecnh s\u1ef1 c\u1ed1 ki\u1ec3m so\u00e1t truy c\u1eadp th\u1ef1c t\u1ebf<\/td><\/tr><tr><td><strong>M\u00e3 h\u00f3a + x\u00e1c th\u1ef1c<\/strong><\/td><td>S\u1eed d\u1ee5ng ch\u1ee9ng ch\u1ec9 ISO\/IEC 14443 v\u1edbi c\u01a1 ch\u1ebf x\u00e1c th\u1ef1c\/ph\u1ea3n h\u1ed3i.<\/td><td>M\u00e1y \u0111\u1ecdc x\u00e1c minh ph\u1ea3n h\u1ed3i m\u00e3 h\u00f3a, ch\u1ee9 kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t con s\u1ed1.<\/td><td>Th\u1ea3o lu\u1eadn chuy\u00ean gia tr\u00ean t\u1ea1p ch\u00ed RFID + ghi ch\u00fa b\u1ea3o m\u1eadt c\u1ee7a nh\u00e0 cung c\u1ea5p<\/td><\/tr><tr><td><strong>\u0110a d\u1ea1ng h\u00f3a ch\u1ee7 ch\u1ed1t h\u1ea1n ch\u1ebf ph\u1ea1m vi \u1ea3nh h\u01b0\u1edfng c\u1ee7a v\u1ee5 n\u1ed5<\/strong><\/td><td>T\u1ea1o kh\u00f3a ri\u00eang cho t\u1eebng th\u1ebb t\u1eeb kh\u00f3a ch\u00ednh.<\/td><td>M\u1ed9t l\u1ed7i r\u00f2 r\u1ec9 kh\u00f3a s\u1ebd kh\u00f4ng l\u00e0m h\u1ecfng to\u00e0n b\u1ed9 h\u1ea1m \u0111\u1ed9i c\u1ee7a b\u1ea1n.<\/td><td>Ghi ch\u00fa \u1ee9ng d\u1ee5ng b\u1ea3o m\u1eadt c\u1ee7a NXP<\/td><\/tr><tr><td><strong>MAC qua UID v\u00e0 n\u1ed9i dung<\/strong><\/td><td>Th\u00eam ki\u1ec3m tra t\u00ednh to\u00e0n v\u1eb9n (MAC) tr\u00ean UID + d\u1eef li\u1ec7u<\/td><td>Ng\u0103n ch\u1eb7n c\u00e1c thao t\u00e1c ch\u1ec9nh s\u1eeda &quot;sao ch\u00e9p-d\u00e1n&quot; v\u00e0 c\u00e1c th\u1ee7 thu\u1eadt ph\u00e1t l\u1ea1i.<\/td><td>Ghi ch\u00fa \u1ee9ng d\u1ee5ng b\u1ea3o m\u1eadt c\u1ee7a NXP<\/td><\/tr><tr><td><strong>Danh s\u00e1ch cho ph\u00e9p v\u00e0 danh s\u00e1ch ch\u1eb7n<\/strong><\/td><td>Duy tr\u00ec danh s\u00e1ch cho ph\u00e9p + quy tr\u00ecnh ch\u1eb7n nhanh<\/td><td>B\u1ea1n c\u00f3 th\u1ec3 nhanh ch\u00f3ng v\u00f4 hi\u1ec7u h\u00f3a th\u00f4ng tin \u0111\u0103ng nh\u1eadp b\u1ecb \u0111\u00e1nh c\u1eafp\/sao ch\u00e9p.<\/td><td>C\u00e1c ph\u01b0\u01a1ng ph\u00e1p th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t d\u00e0nh cho nh\u00e0 t\u00edch h\u1ee3p + c\u1ea9m nang v\u1eadn h\u00e0nh b\u1ea3o m\u1eadt<\/td><\/tr><tr><td><strong>Ki\u1ec3m tra tr\u1ef1c tuy\u1ebfn<\/strong><\/td><td>X\u00e1c th\u1ef1c th\u00f4ng tin \u0111\u0103ng nh\u1eadp tr\u1ef1c tuy\u1ebfn (ho\u1eb7c \u0111\u1ed3ng b\u1ed9 th\u01b0\u1eddng xuy\u00ean)<\/td><td>C\u1eaft gi\u1ea3m &quot;kho\u1ea3ng th\u1eddi gian&quot; m\u00e0 m\u1ed9t b\u1ea3n sao c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng.<\/td><td>C\u00e1c bi\u1ec7n ph\u00e1p \u0111\u1ed1i ph\u00f3 c\u1ee7a Nethemba + c\u00e1c m\u00f4 h\u00ecnh ki\u1ec3m so\u00e1t truy c\u1eadp doanh nghi\u1ec7p<\/td><\/tr><tr><td><strong>N\u00e2ng c\u1ea5p c\u00f4ng ngh\u1ec7 x\u00e1c th\u1ef1c<\/strong><\/td><td>H\u00e3y lo\u1ea1i b\u1ecf c\u00f4ng ngh\u1ec7 th\u1ebb c\u0169\/y\u1ebfu cho c\u00e1c c\u1eeda c\u00f3 gi\u00e1 tr\u1ecb cao.<\/td><td>B\u1ea1n kh\u00f4ng th\u1ec3 v\u00e1 nh\u1eefng n\u1ec1n m\u00f3ng y\u1ebfu m\u00e3i \u0111\u01b0\u1ee3c.<\/td><td>S\u1ef1 \u0111\u1ed3ng thu\u1eadn trong nghi\u00ean c\u1ee9u b\u1ea3o m\u1eadt + l\u1ed9 tr\u00ecnh ph\u00e1t tri\u1ec3n c\u1ee7a nh\u00e0 cung c\u1ea5p<\/td><\/tr><tr><td><strong>Qu\u1ea3n l\u00fd ch\u1ee7 ch\u1ed1t<\/strong><\/td><td>Ki\u1ec3m so\u00e1t ch\u1eb7t ch\u1ebd vi\u1ec7c thao t\u00e1c, xoay v\u00f2ng v\u00e0 ti\u00eam ch\u00eca kh\u00f3a.<\/td><td>M\u00e3 h\u00f3a s\u1ebd th\u1ea5t b\u1ea1i khi kh\u00f3a b\u1ecb r\u00f2 r\u1ec9, \u0111\u01a1n gi\u1ea3n v\u1eady th\u00f4i.<\/td><td>H\u01b0\u1edbng d\u1eabn b\u1ea3o m\u1eadt theo ti\u00eau chu\u1ea9n NIST + ghi ch\u00fa c\u1ee7a nh\u00e0 cung c\u1ea5p<\/td><\/tr><tr><td><strong>Nh\u1eadt k\u00fd ki\u1ec3m to\u00e1n v\u00e0 c\u1ea3nh b\u00e1o<\/strong><\/td><td>Ghi nh\u1eadt k\u00fd, \u0111\u1ed1i chi\u1ebfu v\u00e0 c\u1ea3nh b\u00e1o v\u1ec1 c\u00e1c b\u1ea5t th\u01b0\u1eddng.<\/td><td>Bi\u1ebfn nh\u1eefng h\u00e0nh vi l\u1ea1m d\u1ee5ng th\u1ea7m l\u1eb7ng th\u00e0nh nh\u1eefng s\u1ef1 ki\u1ec7n c\u00f4ng khai.<\/td><td>C\u00e1c m\u00f4 h\u00ecnh gi\u00e1m s\u00e1t SOC \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong an ninh v\u1eadt l\u00fd<\/td><\/tr><tr><td><strong>Ch\u1ed1ng chuy\u1ec3n h\u01b0\u1edbng v\u00e0 h\u1ebft h\u1ea1n<\/strong><\/td><td>B\u1ed5 sung c\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t ch\u00ednh s\u00e1ch \u0111\u1ec3 gi\u1ea3m thi\u1ec3u l\u1ea1m d\u1ee5ng.<\/td><td>Ngay c\u1ea3 khi \u0111\u01b0\u1ee3c sao ch\u00e9p, th\u00f4ng tin x\u00e1c th\u1ef1c c\u0169ng s\u1ebd nhanh ch\u00f3ng b\u1ecb &quot;k\u1eb9t&quot; l\u1ea1i.<\/td><td>Th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t trong v\u1eadn h\u00e0nh ki\u1ec3m so\u00e1t truy c\u1eadp<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-7a4b99f\" id=\"gspb_image-id-gsbp-7a4b99f\"><img decoding=\"async\" src=\"https:\/\/www.cxjsmartcard.com\/wp-content\/uploads\/2025\/12\/Preventing-RFID-Keyfob-Cloning-Encryption-Whitelists-and-Best-Practices-1.webp\" data-src=\"\" alt=\"\" loading=\"lazy\" width=\"676\" height=\"676\"\/><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"encryption\">M\u00e3 h\u00f3a<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"encryption-authentication\">M\u00e3 h\u00f3a + x\u00e1c th\u1ef1c<\/h3>\n\n\n\n<p>N\u1ebfu b\u1ea1n ch\u1ec9 nh\u1edb \u0111\u01b0\u1ee3c m\u1ed9t c\u00e2u: <strong>M\u00e3 h\u00f3a m\u00e0 kh\u00f4ng k\u00e8m theo x\u00e1c th\u1ef1c l\u00e0 ch\u01b0a \u0111\u1ee7.<\/strong>.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u1eeda ra v\u00e0o, b\u1ea1n mu\u1ed1n <em>x\u00e1c th\u1ef1c l\u1eabn nhau \/ th\u1eed th\u00e1ch-ph\u1ea3n h\u1ed3i<\/em> H\u00e0nh vi theo ki\u1ec3u n\u00e0y. Ng\u01b0\u1eddi \u0111\u1ecdc g\u1eedi m\u1ed9t th\u1eed th\u00e1ch, th\u00f4ng tin x\u00e1c th\u1ef1c tr\u1ea3 l\u1eddi b\u1eb1ng m\u1ed9t ph\u1ea3n h\u1ed3i m\u00e0 ch\u1ec9 kh\u00f3a b\u00ed m\u1eadt h\u1ee3p l\u1ec7 m\u1edbi c\u00f3 th\u1ec3 t\u1ea1o ra. \u0110\u00f3 l\u00e0 l\u00fac vi\u1ec7c &quot;sao ch\u00e9p ID&quot; kh\u00f4ng c\u00f2n h\u1eefu \u00edch n\u1eefa.<\/p>\n\n\n\n<p>M\u1eb9o th\u1ef1c t\u1ebf t\u1eeb kinh nghi\u1ec7m: n\u1ebfu b\u1ea1n \u0111ang s\u1eed d\u1ee5ng Wiegand v\u00e0 c\u00e1c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n c\u0169, h\u00e3y xem x\u00e9t hi\u1ec7n \u0111\u1ea1i h\u00f3a \u0111\u01b0\u1eddng truy\u1ec1n th\u00f4ng (OSDP Secure Channel l\u00e0 thu\u1eadt ng\u1eef ph\u1ed5 bi\u1ebfn trong gi\u1edbi t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng). Vi\u1ec7c sao ch\u00e9p d\u1eef li\u1ec7u kh\u00f4ng ph\u1ea3i l\u00e0 r\u1ee7i ro duy nh\u1ea5t; vi\u1ec7c nghe l\u00e9n v\u00e0 ph\u00e1t l\u1ea1i d\u1eef li\u1ec7u c\u0169ng ti\u1ec1m \u1ea9n nguy hi\u1ec3m.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"key-diversification-limits-blast-radius\">\u0110a d\u1ea1ng h\u00f3a ch\u1ee7 ch\u1ed1t h\u1ea1n ch\u1ebf ph\u1ea1m vi \u1ea3nh h\u01b0\u1edfng c\u1ee7a v\u1ee5 n\u1ed5<\/h3>\n\n\n\n<p>Nhi\u1ec1u ng\u01b0\u1eddi th\u01b0\u1eddng b\u1ecf qua b\u01b0\u1edbc n\u00e0y trong qu\u00e1 tr\u00ecnh tri\u1ec3n khai v\u00ec c\u1ea3m th\u1ea5y n\u00f3 &quot;qu\u00e1 ph\u1ee9c t\u1ea1p \u0111\u1ed1i v\u1edbi doanh nghi\u1ec7p l\u1edbn&quot;. Nh\u01b0ng th\u1ef1c t\u1ebf, \u0111\u00e2y l\u1ea1i l\u00e0 ph\u1ea7n gi\u00fap b\u1ea1n ti\u1ebft ki\u1ec7m \u0111\u01b0\u1ee3c c\u1ea3 cu\u1ed1i tu\u1ea7n.<\/p>\n\n\n\n<p><strong>\u0110a d\u1ea1ng h\u00f3a ch\u1ee7 ch\u1ed1t<\/strong> c\u00f3 ngh\u0129a l\u00e0: m\u1ed7i th\u1ebb\/m\u00f3c kh\u00f3a \u0111\u1ec1u c\u00f3... <em>s\u1edf h\u1eefu<\/em> Kh\u00f3a d\u1eabn xu\u1ea5t. N\u1ebfu m\u1ed9t th\u00f4ng tin x\u00e1c th\u1ef1c b\u1ecb l\u1ed9, b\u1ea1n ch\u1ec9 g\u00e2y thi\u1ec7t h\u1ea1i cho th\u00f4ng tin x\u00e1c th\u1ef1c \u0111\u00f3 (ch\u1ee9 kh\u00f4ng ph\u1ea3i to\u00e0n b\u1ed9 trang web). N\u1ebfu kh\u00f4ng \u0111a d\u1ea1ng h\u00f3a, m\u1ed9t v\u1ee5 r\u00f2 r\u1ec9 c\u00f3 th\u1ec3 tr\u1edf th\u00e0nh v\u1ea5n \u0111\u1ec1 tr\u00ean to\u00e0n h\u1ec7 th\u1ed1ng. Kh\u00f4ng ai mu\u1ed1n g\u1eb7p ph\u1ea3i v\u1ea5n \u0111\u1ec1 tr\u00ean to\u00e0n h\u1ec7 th\u1ed1ng c\u1ea3.<\/p>\n\n\n\n<p>Gi\u1ea3i ph\u00e1p c\u1ee7a CXJ Smart Card \u1edf \u0111\u00e2y: n\u1ebfu b\u1ea1n \u0111\u00e3 c\u00f3 k\u1ebf ho\u1ea1ch qu\u1ea3n l\u00fd kh\u00f3a (\u00e1nh x\u1ea1 UID\/EPC\/NDEF, \u0111\u1ea7u v\u00e0o kh\u00f3a \u0111a d\u1ea1ng, quy t\u1eafc n\u1ed1i ti\u1ebfp), ch\u00fang t\u00f4i c\u00f3 th\u1ec3 \u0111\u1ed3ng b\u1ed9 h\u00f3a m\u00e3 h\u00f3a + x\u00e1c minh trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t \u0111\u1ec3 d\u1eef li\u1ec7u s\u1eb5n s\u00e0ng cho vi\u1ec7c tri\u1ec3n khai. B\u1eaft \u0111\u1ea7u v\u1edbi <a href=\"https:\/\/www.cxjsmartcard.com\/vi\/services\/\">D\u1ecbch v\u1ee5 OEM\/ODM<\/a> v\u00e0 <a href=\"https:\/\/www.cxjsmartcard.com\/vi\/products\/\">C\u00e1c s\u1ea3n ph\u1ea9m<\/a> danh m\u1ee5c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"mac-over-uid-and-content\">MAC qua UID v\u00e0 n\u1ed9i dung<\/h3>\n\n\n\n<p>H\u00e3y ngh\u0129 v\u1ec1 m\u1ed9t <strong>MAC<\/strong> Gi\u1ed1ng nh\u01b0 m\u1ed9t l\u1edbp ni\u00eam phong ch\u1ed1ng gi\u1ea3 m\u1ea1o cho d\u1eef li\u1ec7u. M\u00e3 h\u00f3a che gi\u1ea5u d\u1eef li\u1ec7u, nh\u01b0ng MAC ch\u1ee9ng minh r\u1eb1ng d\u1eef li\u1ec7u ch\u01b0a b\u1ecb s\u1eeda \u0111\u1ed5i.<\/p>\n\n\n\n<p>N\u1ebfu th\u00f4ng tin x\u00e1c th\u1ef1c c\u1ee7a b\u1ea1n ch\u1ee9a d\u1eef li\u1ec7u c\u00f3 c\u1ea5u tr\u00fac (m\u00e3 c\u01a1 s\u1edf, d\u1eef li\u1ec7u \u1ee9ng d\u1ee5ng, n\u1ed9i dung khu v\u1ef1c), th\u00ec vi\u1ec7c s\u1eed d\u1ee5ng MAC tr\u00ean UID + n\u1ed9i dung s\u1ebd khi\u1ebfn c\u00e1c cu\u1ed9c t\u1ea5n c\u00f4ng &quot;sao ch\u00e9p v\u00e0 ch\u1ec9nh s\u1eeda&quot; kh\u00f4ng v\u01b0\u1ee3t qua \u0111\u01b0\u1ee3c qu\u00e1 tr\u00ecnh x\u00e1c th\u1ef1c. N\u00f3 kh\u00f4ng h\u00e0o nho\u00e1ng, nh\u01b0ng r\u1ea5t m\u1ea1nh m\u1ebd.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"whitelists\">Danh s\u00e1ch tr\u1eafng<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"uid-only-access-control-is-weak\">Ki\u1ec3m so\u00e1t truy c\u1eadp ch\u1ec9 d\u1ef1a tr\u00ean UID l\u00e0 y\u1ebfu.<\/h3>\n\n\n\n<p>V\u00e2ng, t\u00f4i nh\u1eafc l\u1ea1i \u0111i\u1ec1u n\u00e0y m\u1ed9t ch\u00fat v\u00ec \u0111\u00e2y l\u00e0 nguy\u00ean nh\u00e2n g\u1ed1c r\u1ec5.<\/p>\n\n\n\n<p>Nhi\u1ec1u d\u1ecbch v\u1ee5 l\u1eafp \u0111\u1eb7t gi\u00e1 r\u1ebb th\u01b0\u1eddng m\u1eafc ph\u1ea3i c\u00e1c l\u1ed7i sau:<br><strong>UID kh\u1edbp \u2192 m\u00e1y ch\u1ee7 chuy\u1ec3n ti\u1ebfp m\u1edf.<\/strong><br>\u0110\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 x\u00e1c th\u1ef1c. \u0110\u00f3 ch\u1ec9 l\u00e0 \u0111\u1ed1i kh\u1edbp ID.<\/p>\n\n\n\n<p>N\u1ebfu b\u1ea1n tri\u1ec3n khai h\u1ec7 th\u1ed1ng v\u00e0o kh\u00f4ng gian l\u00e0m vi\u1ec7c chung, ph\u00f2ng t\u1eadp th\u1ec3 d\u1ee5c, v\u0103n ph\u00f2ng chia s\u1ebb ho\u1eb7c b\u1ea5t k\u1ef3 n\u01a1i n\u00e0o c\u00f3 l\u01b0\u1ee3ng ng\u01b0\u1eddi d\u00f9ng thay \u0111\u1ed5i li\u00ean t\u1ee5c, vi\u1ec7c ch\u1ec9 s\u1eed d\u1ee5ng UID v\u1ec1 c\u01a1 b\u1ea3n l\u00e0 \u0111ang t\u1ef1 chu\u1ed1c l\u1ea5y r\u1eafc r\u1ed1i v\u1ec1 &quot;th\u00f4ng tin \u0111\u0103ng nh\u1eadp m\u01b0\u1ee3n&quot;.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"allowlisting-and-blocklisting\">Danh s\u00e1ch cho ph\u00e9p v\u00e0 danh s\u00e1ch ch\u1eb7n<\/h3>\n\n\n\n<p>Danh s\u00e1ch tr\u1eafng (danh s\u00e1ch cho ph\u00e9p) r\u1ea5t \u0111\u01a1n gi\u1ea3n: ch\u1ec9 nh\u1eefng th\u00f4ng tin \u0111\u0103ng nh\u1eadp n\u00e0y m\u1edbi \u0111\u01b0\u1ee3c ph\u00e9p m\u1edf C\u1eeda A. Danh s\u00e1ch ch\u1eb7n l\u00e0 phanh kh\u1ea9n c\u1ea5p: UID n\u00e0y kh\u00f4ng h\u1ee3p l\u1ec7, \u0111\u1eebng ch\u1ea5p nh\u1eadn n\u00f3.<\/p>\n\n\n\n<p>\u0110i\u1ec1u l\u00e0m cho danh s\u00e1ch tr\u1eafng th\u1ef1c s\u1ef1 hi\u1ec7u qu\u1ea3 l\u00e0 t\u1ed1c \u0111\u1ed9 + t\u00ednh k\u1ef7 lu\u1eadt:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>B\u1ea1n c\u00f3 th\u1ec3 c\u1eadp nh\u1eadt nhanh ch\u00f3ng (ho\u1eb7c \u0111\u1ed3ng b\u1ed9 h\u00f3a)<\/li>\n\n\n\n<li>B\u1ea1n theo d\u00f5i v\u00f2ng \u0111\u1eddi c\u1ee7a th\u00f4ng tin x\u00e1c th\u1ef1c (\u0111\u00e3 c\u1ea5p\/\u0111ang ho\u1ea1t \u0111\u1ed9ng\/b\u1ecb t\u1ea1m ng\u01b0ng\/b\u1ecb thu h\u1ed3i).<\/li>\n\n\n\n<li>B\u1ea1n c\u00f3 th\u1ec3 \u0111\u01b0a s\u1ef1 c\u1ed1 v\u00e0o danh s\u00e1ch \u0111en m\u00e0 kh\u00f4ng c\u1ea7n ch\u1edd b\u00e1o c\u00e1o h\u00e0ng tu\u1ea7n.<\/li>\n<\/ul>\n\n\n\n<p>M\u1ed9t t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf kh\u00e1 hay: ch\u00eca kh\u00f3a c\u1ee7a nh\u00e2n vi\u00ean kh\u00e1ch s\u1ea1n. Khi ai \u0111\u00f3 l\u00e0m m\u1ea5t ch\u00eca kh\u00f3a \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa, b\u1ea1n kh\u00f4ng mu\u1ed1n ph\u1ea3i l\u00e0m l\u1ea1i ch\u00eca kh\u00f3a cho t\u1ea5t c\u1ea3 c\u00e1c \u1ed5 kh\u00f3a. B\u1ea1n mu\u1ed1n thu h\u1ed3i quy\u1ec1n truy c\u1eadp \u0111\u00f3 ngay l\u1eadp t\u1ee9c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"online-checking\">Ki\u1ec3m tra tr\u1ef1c tuy\u1ebfn<\/h3>\n\n\n\n<p>X\u00e1c th\u1ef1c tr\u1ef1c tuy\u1ebfn l\u00e0 y\u1ebfu t\u1ed1 quy\u1ebft \u0111\u1ecbnh gi\u1eefa &quot;ch\u00fang ta s\u1ebd kh\u1eafc ph\u1ee5c sau&quot; v\u00e0 &quot;n\u00f3 \u0111\u00e3 ng\u1eebng ho\u1ea1t \u0111\u1ed9ng r\u1ed3i&quot;.\u201c<\/p>\n\n\n\n<p>N\u1ebfu c\u00f3 th\u1ec3, h\u00e3y gi\u1eef cho c\u00e1c c\u1eeda lu\u00f4n ho\u1ea1t \u0111\u1ed9ng. N\u1ebfu kh\u00f4ng th\u1ec3, \u00edt nh\u1ea5t h\u00e3y \u0111\u1ed3ng b\u1ed9 danh s\u00e1ch th\u01b0\u1eddng xuy\u00ean. C\u00e1c c\u1eeda c\u00f3 r\u1ee7i ro cao (ph\u00f2ng m\u00e1y ch\u1ee7, ph\u00f2ng thu ng\u00e2n, kho h\u00e0ng) c\u1ea7n \u0111\u01b0\u1ee3c \u0111\u1ed3ng b\u1ed9 v\u1edbi t\u1ea7n su\u1ea5t ng\u1eafn h\u01a1n. C\u00e1c c\u1eeda th\u00f4ng th\u01b0\u1eddng c\u00f3 th\u1ec3 ch\u1eadm h\u01a1n. \u0110i\u1ec1u \u0111\u00f3 l\u00e0 b\u00ecnh th\u01b0\u1eddng.<\/p>\n\n\n\n<div class=\"wp-block-greenshift-blocks-image gspb_image gspb_image-id-gsbp-1578262\" id=\"gspb_image-id-gsbp-1578262\"><img decoding=\"async\" src=\"https:\/\/www.cxjsmartcard.com\/wp-content\/uploads\/2025\/12\/Preventing-RFID-Keyfob-Cloning-Encryption-Whitelists-and-Best-Practices-4.webp\" data-src=\"\" alt=\"\" loading=\"lazy\" width=\"676\" height=\"676\"\/><\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"best-practices\">Th\u1ef1c ti\u1ec5n t\u1ed1t nh\u1ea5t<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"upgrade-credential-technology\">N\u00e2ng c\u1ea5p c\u00f4ng ngh\u1ec7 x\u00e1c th\u1ef1c<\/h3>\n\n\n\n<p>H\u00e3y s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 m\u1ea1nh m\u1ebd h\u01a1n \u1edf nh\u1eefng n\u01a1i th\u1ef1c s\u1ef1 c\u1ea7n thi\u1ebft. Kh\u00f4ng ph\u1ea3i c\u00e1nh c\u1eeda n\u00e0o c\u0169ng c\u1ea7n c\u00f9ng m\u1ed9t m\u1ee9c \u0111\u1ed9 b\u1ea3o m\u1eadt.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u1ed5ng xoay \u1edf s\u1ea3nh? M\u1ee9c \u0111\u1ed9 r\u1ee7i ro trung b\u00ecnh.<\/li>\n\n\n\n<li>Trung t\u00e2m d\u1eef li\u1ec7u hay ph\u00f2ng th\u00ed nghi\u1ec7m? R\u1ee7i ro cao.<\/li>\n\n\n\n<li>L\u1ed1i v\u00e0o ph\u00eda sau ch\u1ec9 d\u00e0nh cho nh\u00e2n vi\u00ean v\u00e0 kh\u00f4ng c\u00f3 camera? K\u1ef3 l\u1ea1 thay, \u0111\u00f4i khi l\u1ea1i l\u00e0 l\u1ed1i v\u00e0o c\u00f3 r\u1ee7i ro cao nh\u1ea5t.<\/li>\n<\/ul>\n\n\n\n<p>V\u00ec v\u1eady, h\u00e3y ph\u00e2n chia c\u00e1c c\u1ea5p \u0111\u1ed9 x\u00e1c th\u1ef1c c\u1ee7a b\u1ea1n v\u00e0 \u0111\u1eebng tri\u1ec3n khai c\u00e1c ch\u1ee9ng ch\u1ec9 x\u00e1c th\u1ef1c c\u0169 cho nh\u1eefng c\u1ed5ng c\u00f3 th\u1ec3 g\u00e2y ra r\u1ee7i ro l\u1edbn nh\u1ea5t.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"key-management\">Qu\u1ea3n l\u00fd ch\u1ee7 ch\u1ed1t<\/h3>\n\n\n\n<p>Ph\u1ea7n n\u00e0y nghe c\u00f3 v\u1ebb nh\u00e0m ch\u00e1n, nh\u01b0ng \u0111\u00e2y ch\u00ednh l\u00e0 \u0111i\u1ec3m m\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng th\u01b0\u1eddng g\u1eb7p tr\u1ee5c tr\u1eb7c trong th\u1ef1c t\u1ebf.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>H\u00e3y l\u00e0m m\u1ed9t &quot;nghi th\u1ee9c&quot; trao ch\u00eca kh\u00f3a (d\u00f9 \u0111\u01a1n gi\u1ea3n c\u0169ng \u0111\u01b0\u1ee3c).<\/li>\n\n\n\n<li>H\u1ea1n ch\u1ebf ng\u01b0\u1eddi c\u00f3 th\u1ec3 truy c\u1eadp v\u00e0o ch\u00eca kh\u00f3a ch\u00ednh.<\/li>\n\n\n\n<li>Ph\u00e2n c\u00f4ng nhi\u1ec7m v\u1ee5 ri\u00eang bi\u1ec7t (nh\u00e2n vi\u00ean v\u1eadn h\u00e0nh kh\u00f4ng th\u1ec3 t\u00f9y ti\u1ec7n xu\u1ea5t kh\u00f3a)<\/li>\n\n\n\n<li>xoay v\u00f2ng k\u1ebf ho\u1ea1ch (ngay c\u1ea3 khi kh\u00f4ng th\u01b0\u1eddng xuy\u00ean)<\/li>\n<\/ul>\n\n\n\n<p>N\u1ebfu kh\u00f3a m\u00e3 h\u00f3a b\u1ecb r\u00f2 r\u1ec9, c\u00e2u chuy\u1ec7n m\u00e3 h\u00f3a c\u1ee7a b\u1ea1n s\u1ebd nhanh ch\u00f3ng tr\u1edf n\u00ean t\u1ed3i t\u1ec7.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"audit-logs-and-alerts\">Nh\u1eadt k\u00fd ki\u1ec3m to\u00e1n v\u00e0 c\u1ea3nh b\u00e1o<\/h3>\n\n\n\n<p>B\u1ea3ng \u0111i\u1ec1u khi\u1ec3n truy c\u1eadp c\u1ee7a b\u1ea1n \u0111\u00e3 t\u1ea1o ra t\u00edn hi\u1ec7u. H\u00e3y s\u1eed d\u1ee5ng ch\u00fang.<\/p>\n\n\n\n<p>V\u00ed d\u1ee5 c\u1ea3nh b\u00e1o gi\u00fap ph\u00e1t hi\u1ec7n h\u00e0nh vi sao ch\u00e9p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u00f9ng m\u1ed9t th\u00f4ng tin \u0111\u0103ng nh\u1eadp \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng t\u1ea1i hai c\u1eeda qu\u00e1 g\u1ea7n nhau v\u1ec1 th\u1eddi gian.<\/li>\n\n\n\n<li>Th\u00f4ng tin \u0111\u0103ng nh\u1eadp b\u1ecb l\u1ed7i 20 l\u1ea7n, r\u1ed3i \u0111\u1ed9t nhi\u00ean ho\u1ea1t \u0111\u1ed9ng (ki\u1ec3u &quot;ai \u0111\u00f3 \u0111ang th\u1eed nghi\u1ec7m&quot; \u0111i\u1ec3n h\u00ecnh)<\/li>\n\n\n\n<li>C\u1eeda b\u1ecb ph\u00e1 kh\u00f3a k\u00e8m theo m\u1ed9t s\u1ef1 c\u1ed1 x\u00e1c th\u1ef1c k\u1ef3 l\u1ea1.<\/li>\n<\/ul>\n\n\n\n<p>\u0110\u1eebng ph\u1ee9c t\u1ea1p h\u00f3a v\u1ea5n \u0111\u1ec1. H\u00e3y b\u1eaft \u0111\u1ea7u v\u1edbi m\u1ed9t v\u00e0i quy t\u1eafc \u0111\u01a1n gi\u1ea3n. \u0110i\u1ec1u ch\u1ec9nh sau.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"anti-passback-and-expiration\">Ch\u1ed1ng chuy\u1ec3n h\u01b0\u1edbng v\u00e0 h\u1ebft h\u1ea1n<\/h3>\n\n\n\n<p>C\u00e1c bi\u1ec7n ph\u00e1p ki\u1ec3m so\u00e1t ch\u00ednh s\u00e1ch s\u1ebd kh\u00f4ng thay th\u1ebf \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a, nh\u01b0ng ch\u00fang gi\u00fap gi\u1ea3m thi\u1ec3u thi\u1ec7t h\u1ea1i.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>ch\u1ed1ng chuy\u1ec3n ti\u1ebfp<\/strong> Ng\u0103n ch\u1eb7n t\u00ecnh tr\u1ea1ng &quot;chia s\u1ebb th\u1ebb&quot; t\u1ea1i ph\u00f2ng t\u1eadp gym v\u00e0 b\u00e3i \u0111\u1eadu xe.<\/li>\n\n\n\n<li><strong>h\u1ebft h\u1ea1n<\/strong> Lo\u1ea1i b\u1ecf r\u1ee7i ro d\u00e0i h\u1ea1n cho nh\u00e2n vi\u00ean th\u1eddi v\u1ee5, nh\u00e0 cung c\u1ea5p v\u00e0 nh\u00e2n vi\u00ean s\u1ef1 ki\u1ec7n.<\/li>\n<\/ul>\n\n\n\n<p>M\u1ed9t th\u00f3i quen nh\u1ecf trong v\u1eadn h\u00e0nh h\u1ec7 th\u1ed1ng: h\u00e3y thi\u1ebft l\u1eadp \u0111\u1ec3 th\u00f4ng tin \u0111\u0103ng nh\u1eadp c\u1ee7a kh\u00e1ch truy c\u1eadp t\u1ef1 \u0111\u1ed9ng h\u1ebft h\u1ea1n theo m\u1eb7c \u0111\u1ecbnh. M\u1ecdi ng\u01b0\u1eddi th\u01b0\u1eddng hay qu\u00ean, nh\u01b0ng h\u1ec7 th\u1ed1ng th\u00ec kh\u00f4ng n\u00ean qu\u00ean.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"oem-odm-rfid-manufacturing-and-encoding\">S\u1ea3n xu\u1ea5t v\u00e0 m\u00e3 h\u00f3a RFID theo h\u00ecnh th\u1ee9c OEM\/ODM<\/h2>\n\n\n\n<p>Thi\u1ebft k\u1ebf b\u1ea3o m\u1eadt c\u00f3 th\u1ec3 ho\u00e0n h\u1ea3o nh\u01b0ng v\u1eabn th\u1ea5t b\u1ea1i n\u1ebfu chu\u1ed7i cung \u1ee9ng ch\u1ee9ng ch\u1ec9 c\u1ee7a b\u1ea1n l\u1ed9n x\u1ed9n: nhi\u1ec1u lo\u1ea1i chip kh\u00e1c nhau, x\u1eed l\u00fd UID kh\u00f4ng nh\u1ea5t qu\u00e1n, in\/m\u00e3 h\u00f3a c\u1ea9u th\u1ea3, kh\u00f4ng c\u00f3 b\u00e1o c\u00e1o x\u00e1c minh, kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng truy xu\u1ea5t ngu\u1ed3n g\u1ed1c l\u00f4 h\u00e0ng. \u0110\u00f3 l\u00e0 c\u00e1ch c\u00e1c d\u1ef1 \u00e1n b\u1ecb &quot;\u00e1m \u1ea3nh&quot;.<\/p>\n\n\n\n<p>CXJ Smart Card cung c\u1ea5p d\u1ecbch v\u1ee5 OEM\/ODM tr\u1ecdn g\u00f3i t\u1eeb \u0103ng-ten\/l\u1edbp ph\u1ee7 \u0111\u1ebfn s\u1ea3n ph\u1ea9m ho\u00e0n ch\u1ec9nh, bao g\u1ed3m c\u1ea3 in \u1ea5n v\u00e0 c\u00e1 nh\u00e2n h\u00f3a, v\u00e0 ch\u00fang t\u00f4i c\u00f3 th\u1ec3 h\u1ed7 tr\u1ee3 c\u00e1c k\u1ebf ho\u1ea1ch m\u00e3 h\u00f3a (\u00e1nh x\u1ea1 UID\/EPC\/NDEF, quy t\u1eafc n\u1ed1i ti\u1ebfp, x\u00e1c minh ki\u1ec3m tra ghi). Xem th\u00eam:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.cxjsmartcard.com\/vi\/rfid-keyfobs\/\">M\u00f3c kh\u00f3a RFID<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cxjsmartcard.com\/vi\/access-control-rfid-cards\/\">Th\u1ebb RFID ki\u1ec3m so\u00e1t truy c\u1eadp<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cxjsmartcard.com\/vi\/rfid-cards\/\">Th\u1ebb RFID<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cxjsmartcard.com\/vi\/nfc-tags\/\">Th\u1ebb NFC<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cxjsmartcard.com\/vi\/rfid-nfc-inlay\/\">L\u1edbp ph\u1ee7 RFID NFC<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cxjsmartcard.com\/vi\/rfid-nfc-bracelets\/\">V\u00f2ng \u0111eo tay RFID NFC<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cxjsmartcard.com\/vi\/rfid-sticker-labels\/\">Nh\u00e3n d\u00e1n RFID<\/a><\/li>\n<\/ul>\n\n\n\n<p>N\u1ebfu b\u1ea1n l\u00e0 nh\u00e0 t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng, l\u1ee3i \u00edch r\u1ea5t \u0111\u01a1n gi\u1ea3n: tri\u1ec3n khai th\u1eed nghi\u1ec7m nhanh ch\u00f3ng, sau \u0111\u00f3 m\u1edf r\u1ed9ng quy m\u00f4 m\u00e0 kh\u00f4ng c\u1ea7n l\u00e0m l\u1ea1i m\u1ecdi th\u1ee9. N\u1ebfu b\u1ea1n l\u00e0 ng\u01b0\u1eddi d\u00f9ng cu\u1ed1i, l\u1ee3i \u00edch l\u00e0 gi\u1ea3m thi\u1ec3u nh\u1eefng b\u1ea5t ng\u1edd ki\u1ec3u &quot;n\u00f3 ho\u1ea1t \u0111\u1ed9ng v\u00e0o th\u1ee9 Ba&quot;. \u0110i\u1ec1u n\u00e0y kh\u00f4ng h\u00e0o nho\u00e1ng, nh\u01b0ng ch\u00ednh n\u00f3 gi\u00fap c\u00e1c tri\u1ec3n khai \u0111\u01b0\u1ee3c duy tr\u00ec l\u00e2u d\u00e0i.<\/p>","protected":false},"excerpt":{"rendered":"<p>If your access system still \u201ctrusts the ID,\u201d you\u2019re living on borrowed time. Most cloned keyfob incidents don\u2019t start with Hollywood hacking. They start with a setup that treats a static identifier like it\u2019s a password. You can fix that. Not with one magic switch, but with a clean combo: Encryption, Whitelists, and some operational [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1378,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_gspb_post_css":"#gspb_image-id-gsbp-0afc888 img,#gspb_image-id-gsbp-1578262 img,#gspb_image-id-gsbp-7a4b99f img{vertical-align:top;display:inline-block;box-sizing:border-box;max-width:100%;height:auto}","footnotes":""},"categories":[32],"tags":[],"class_list":["post-1374","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-news"],"blocksy_meta":[],"_links":{"self":[{"href":"https:\/\/www.cxjsmartcard.com\/vi\/wp-json\/wp\/v2\/posts\/1374","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cxjsmartcard.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cxjsmartcard.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cxjsmartcard.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cxjsmartcard.com\/vi\/wp-json\/wp\/v2\/comments?post=1374"}],"version-history":[{"count":1,"href":"https:\/\/www.cxjsmartcard.com\/vi\/wp-json\/wp\/v2\/posts\/1374\/revisions"}],"predecessor-version":[{"id":1379,"href":"https:\/\/www.cxjsmartcard.com\/vi\/wp-json\/wp\/v2\/posts\/1374\/revisions\/1379"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cxjsmartcard.com\/vi\/wp-json\/wp\/v2\/media\/1378"}],"wp:attachment":[{"href":"https:\/\/www.cxjsmartcard.com\/vi\/wp-json\/wp\/v2\/media?parent=1374"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cxjsmartcard.com\/vi\/wp-json\/wp\/v2\/categories?post=1374"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cxjsmartcard.com\/vi\/wp-json\/wp\/v2\/tags?post=1374"}],"curies":[{"name":"trang web","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}