{"id":5965,"date":"2017-10-24T10:12:33","date_gmt":"2017-10-24T03:12:33","guid":{"rendered":"http:\/\/snt.com.vn\/blog\/?p=5965"},"modified":"2017-10-24T10:12:33","modified_gmt":"2017-10-24T03:12:33","slug":"bao-ve-tai-khoan-khoi-7-cach-cap-thong-tin-quen-thuoc","status":"publish","type":"post","link":"https:\/\/snt.com.vn\/blog\/bao-ve-tai-khoan-khoi-7-cach-cap-thong-tin-quen-thuoc\/","title":{"rendered":"B\u1ea3o V\u1ec7 T\u00e0i Kho\u1ea3n Kh\u1ecfi 7 C\u00e1ch \u0102n C\u1eafp Th\u00f4ng Tin Quen Thu\u1ed9c"},"content":{"rendered":"<p>\n\tTheo&nbsp;<em>MakeUseOf<\/em>, th\u1ef1c t\u1ebf v\u1ec1 c\u1ee5m t\u1eeb &quot;b\u1ebb kho&aacute; b\u1ea3o m\u1eadt&quot; kh&ocirc;ng h\u1ec1 ph\u1ee9c t\u1ea1p v&agrave; b&iacute; hi\u1ec3m nh\u01b0 b\u1ea1n ngh\u0129, v&agrave; nh&igrave;n chung m\u1ecdi h&agrave;nh \u0111\u1ed9ng li&ecirc;n quan \u0111\u1ebfn vi\u1ec7c n&agrave;y \u0111\u1ec1u t\u1eadp trung v&agrave;o m\u1ed9t v\u1ea5n \u0111\u1ec1 c\u1ed1t l&otilde;i: b\u1ebb kho&aacute; m\u1eadt m&atilde;. Trong b&agrave;i vi\u1ebft n&agrave;y, VnReview s\u1ebd \u0111i\u1ec3m qua 7 th\u1ee7 \u0111o\u1ea1n \u0111&aacute;nh c\u1eafp m\u1eadt kh\u1ea9u ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi.\n<\/p>\n<p>\n\t<strong>1. T\u1ea5n c&ocirc;ng &quot;T\u1eeb \u0111i\u1ec3n&quot;<\/strong>\n<\/p>\n<p>\n\t\u0110&acirc;y l&agrave; th\u1ee7 \u0111o\u1ea1n \u0111\u01a1n gi\u1ea3n v&agrave; ph\u1ed5 bi\u1ebfn nh\u1ea5t trong danh s&aacute;ch. T\u1ea1i sao l\u1ea1i g\u1ecdi l&agrave; T\u1ea5n c&ocirc;ng &quot;T\u1eeb \u0111i\u1ec3n&quot;? B\u1edfi hacker s\u1ebd s\u1eed d\u1ee5ng m\u1ed9t thu\u1eadt to&aacute;n \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng th\u1eed t\u1ea5t c\u1ea3 c&aacute;c t\u1eeb\/c\u1ee5m t\u1eeb c&oacute; s\u1eb5n trong m\u1ed9t &quot;T\u1eeb \u0111i\u1ec3n&quot; &#8211; m\u1ed9t t\u1eadp tin nh\u1ecf ch\u1ee9a c&aacute;c t\u1eeb\/c\u1ee5m t\u1eeb ph\u1ed5 bi\u1ebfn m&agrave; ng\u01b0\u1eddi d&ugrave;ng tr&ecirc;n to&agrave;n th\u1ebf gi\u1edbi th\u01b0\u1eddng s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111\u1eb7t m\u1eadt m&atilde;. V&iacute; d\u1ee5: 123456, qwerty, password, mynoob, princess, baseball, hunter2&#8230;\n<\/p>\n<p>\n\t\u01afu \u0111i\u1ec3m: nhanh, th\u01b0\u1eddng th&agrave;nh c&ocirc;ng \u0111\u1ed1i v\u1edbi m\u1ed9t s\u1ed1 t&agrave;i kho\u1ea3n b\u1ea3o m\u1eadt l\u1ecfng l\u1ebbo\n<\/p>\n<p>\n\tNh\u01b0\u1ee3c \u0111i\u1ec3m: kh\u1ea3 n\u0103ng th&agrave;nh c&ocirc;ng th\u1ea5p \u0111\u1ed1i v\u1edbi c&aacute;c m\u1eadt m&atilde; ph\u1ee9c t\u1ea1p\n<\/p>\n<p>\n\tC&aacute;ch ph&ograve;ng tr&aacute;nh: d&ugrave;ng c&aacute;c m\u1eadt m&atilde; ph\u1ee9c t\u1ea1p h\u01a1n v&agrave; ri&ecirc;ng bi\u1ec7t cho m\u1ed7i t&agrave;i kho\u1ea3n, c&oacute; th\u1ec3 k\u1ebft h\u1ee3p v\u1edbi m\u1ed9t \u1ee9ng d\u1ee5ng qu\u1ea3n l&yacute; m\u1eadt m&atilde; \u0111\u1ec3 l\u01b0u tr\u1eef to&agrave;n b\u1ed9 c&aacute;c m\u1eadt m&atilde; c\u1ee7a b\u1ea1n v&agrave; s\u1eed d\u1ee5ng m\u1ed9t m\u1eadt kh\u1ea9u duy nh\u1ea5t (master password) ph\u1ee9c t\u1ea1p, kh&oacute; \u0111o&aacute;n h\u01a1n \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng \u0111i\u1ec1n c&aacute;c m\u1eadt m&atilde; tr&ecirc;n khi truy c\u1eadp v&agrave;o c&aacute;c trang web.\n<\/p>\n<p>\n\t&nbsp;\n<\/p>\n<p>\n\t<img decoding=\"async\" alt=\"7 th\u1ee7 \u0111o\u1ea1n \u0111\u00e1nh c\u1eafp m\u1eadt m\u00e3 ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi - \u1ea2nh 2.\" data-original=\"http:\/\/vnreview.vn\/image\/17\/21\/59\/1721590.jpg?t=1508651495074\" height=\"\" rel=\"lightbox\" src=\"http:\/\/vnreview.vn\/image\/17\/21\/59\/1721590.jpg?t=1508651495074\" title=\"7 th\u1ee7 \u0111o\u1ea1n \u0111\u00e1nh c\u1eafp m\u1eadt m\u00e3 ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi - \u1ea2nh 2.\" width=\"\" \/>\n<\/p>\n<p data-placeholder=\"[nh\u1eadp ch\u00fa th\u00edch]\">\n\t&nbsp;\n<\/p>\n<p>\n\t<strong>2. T\u1ea5n c&ocirc;ng Brute Force<\/strong>\n<\/p>\n<p>\n\tT\u01b0\u01a1ng t\u1ef1 nh\u01b0 T\u1ea5n c&ocirc;ng &quot;T\u1eeb \u0111i\u1ec3n&quot;, nh\u01b0ng trong Brute Force, hacker kh&ocirc;ng s\u1eed d\u1ee5ng t\u1eadp tin &quot;T\u1eeb \u0111i\u1ec3n&quot; m&agrave; s\u1ebd c\u1ed1 g\u1eafng k\u1ebft h\u1ee3p m\u1ecdi k&yacute; t\u1ef1\/t\u1eeb\/c\u1ee5m t\u1eeb c&oacute; th\u1ec3 \u0111\u1ec3 t&igrave;m ra m\u1eadt m&atilde; c\u1ee7a b\u1ea1n. Quy lu\u1eadt k\u1ebft h\u1ee3p c\u0169ng r\u1ea5t \u0111a d\u1ea1ng v&agrave; ph\u1ee9c t\u1ea1p, v&iacute; d\u1ee5 1 k&yacute; t\u1ef1 vi\u1ebft hoa, 1 k&yacute; t\u1ef1 vi\u1ebft th\u01b0\u1eddng, s\u1ed1 l\u1ebb c\u1ee7a s\u1ed1 Pi&#8230;\n<\/p>\n<p>\n\tT\u1ea5t nhi&ecirc;n, t\u1ea5n c&ocirc;ng Brute Force tr\u01b0\u1edbc ti&ecirc;n c\u0169ng s\u1ebd c\u1ed1 k\u1ebft h\u1ee3p c&aacute;c t\u1eeb\/c\u1ee5m t\u1eeb ph\u1ed5 bi\u1ebfn trong danh s&aacute;ch \u1edf ph\u1ea7n 1, nh\u01b0: 1q2w3e4r5t, zxcvbnm, qwertyuiop&#8230;\n<\/p>\n<p>\n\t\u01afu \u0111i\u1ec3m: tr&ecirc;n l&yacute; thuy\u1ebft s\u1ebd c&oacute; th\u1ec3 b\u1ebb kho&aacute; m\u1ecdi m\u1eadt m&atilde;\n<\/p>\n<p>\n\tNh\u01b0\u1ee3c \u0111i\u1ec3m: m\u1eadt m&atilde; c&agrave;ng d&agrave;i v&agrave; ph\u1ee9c t\u1ea1p, th\u1eddi gian b\u1ebb kho&aacute; c&agrave;ng l&acirc;u. \u0110\u1eb7c bi\u1ec7t n\u1ebfu m\u1eadt m&atilde; c&oacute; c&aacute;c k&iacute; t\u1ef1 nh\u01b0 $, &amp;, { hay ] th&igrave; \u0111\u1ebfn c\u1ea3 Brute Force c\u0169ng ph\u1ea3i &quot;to&aacute;t m\u1ed3 h&ocirc;i h\u1ed9t&quot;\n<\/p>\n<p>\n\tC&aacute;ch ph&ograve;ng tr&aacute;nh: k\u1ebft h\u1ee3p c&agrave;ng nhi\u1ec1u k&yacute; t\u1ef1\/t\u1eeb\/c\u1ee5m t\u1eeb kh&aacute;c nhau c&agrave;ng t\u1ed1t, n&ecirc;n th&ecirc;m v&agrave;o c&aacute;c k&yacute; t\u1ef1 \u0111\u1eb7c bi\u1ec7t \u0111\u1ec3 t\u0103ng \u0111\u1ed9 kh&oacute; c\u1ee7a m\u1eadt m&atilde;\n<\/p>\n<p>\n\t<strong>3. Th\u1ee7 \u0111o\u1ea1n &quot;L\u1eeba \u0111\u1ea3o&quot; (Phishing)<\/strong>\n<\/p>\n<p>\n\tC&aacute;ch n&agrave;y kh&ocirc;ng \u0111\u01b0\u1ee3c x\u1ebfp v&agrave;o h&agrave;ng &quot;b\u1ebb kho&aacute;&quot;, b\u1edfi hacker s\u1ebd d\u1ee5 d\u1ed7 ng\u01b0\u1eddi d&ugrave;ng th&ocirc;ng qua m\u1ed9t s\u1ed1 m&aacute;nh kho&eacute; l\u1eeba \u0111\u1ea3o. Th\u1ee7 \u0111o\u1ea1n n&agrave;y th\u01b0\u1eddng g\u1eb7p nh\u1ea5t d\u01b0\u1edbi h&igrave;nh th\u1ee9c l\u1eeba \u0111\u1ea3o qua email.\n<\/p>\n<p>\n\t&#8211; \u0110\u1ea7u ti&ecirc;n, hacker s\u1ebd g\u1edfi c&ugrave;ng l&uacute;c h&agrave;ng t\u1ec9 email t\u1edbi ng\u01b0\u1eddi d&ugrave;ng tr&ecirc;n to&agrave;n c\u1ea7u, d\u01b0\u1edbi danh ngh\u0129a m\u1ed9t t\u1eadp \u0111o&agrave;n hay t\u1ed5 ch\u1ee9c l\u1edbn c&oacute; danh ti\u1ebfng\n<\/p>\n<p>\n\t&#8211; Email n&agrave;y th\u01b0\u1eddng y&ecirc;u c\u1ea7u ng\u01b0\u1eddi nh\u1eadn ph\u1ea3i ch&uacute; &yacute;, v&agrave; c&oacute; k&egrave;m theo m\u1ed9 \u0111\u01b0\u1eddng d\u1eabn \u0111\u1ebfn m\u1ed9t trang web\n<\/p>\n<p>\n\t&#8211; \u0110\u01b0\u1eddng d\u1eabn n&agrave;y th\u1ef1c ra li&ecirc;n k\u1ebft \u0111\u1ebfn m\u1ed9t trang \u0111\u0103ng nh\u1eadp gi\u1ea3 m\u1ea1o, \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf tr&ocirc;ng y h\u1ec7t trang \u0111\u0103ng nh\u1eadp th\u1ef1c t\u1ebf\n<\/p>\n<p>\n\t&#8211; Ng\u01b0\u1eddi nh\u1eadn kh&ocirc;ng h\u1ec1 hay bi\u1ebft v&agrave; \u0111i\u1ec1n c&aacute;c th&ocirc;ng tin c&aacute; nh&acirc;n v&agrave;o \u0111&oacute;, ho\u1eb7c b\u1ecb d\u1eabn \u0111\u1ebfn trang kh&aacute;c&#8230;\n<\/p>\n<p>\n\t&#8211; Th&ocirc;ng tin ng\u01b0\u1eddi d&ugrave;ng \u0111\u01b0\u1ee3c g\u1edfi v\u1ec1 cho hacker v&agrave; b\u1ecb \u0111em b&aacute;n ho\u1eb7c s\u1eed d\u1ee5ng v&agrave;o nhi\u1ec1u m\u1ee5c \u0111&iacute;ch kh&aacute;c.\n<\/p>\n<p>\n\tM\u1eb7c d&ugrave; m\u1ed9t s\u1ed1 m\u1ea1ng l\u01b0\u1edbi botnet l\u1edbn \u0111&atilde; b\u1ecb \u0111&aacute;nh s\u1eadp v&agrave;o n\u0103m 2016, nh\u01b0ng s\u1ed1 li\u1ec7u cu\u1ed1i 2016 v\u1eabn cho th\u1ea5y s\u1ed1 l\u01b0\u1ee3ng email spam \u0111&atilde; t\u0103ng g\u1ea5p 4 l\u1ea7n. H\u01a1n n\u1eefa, s\u1ed1 l\u01b0\u1ee3ng c&aacute;c t\u1eadp tin \u0111&iacute;nh k&egrave;m nguy hi\u1ec3m c\u0169ng t\u0103ng v\u1edbi t\u1ed1c \u0111\u1ed9 ch&oacute;ng m\u1eb7t, th\u1ec3 hi\u1ec7n trong bi\u1ec3u \u0111\u1ed3 b&ecirc;n d\u01b0\u1edbi:\n<\/p>\n<p>\n\t&nbsp;\n<\/p>\n<p>\n\t<img decoding=\"async\" alt=\"7 th\u1ee7 \u0111o\u1ea1n \u0111\u00e1nh c\u1eafp m\u1eadt m\u00e3 ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi - \u1ea2nh 3.\" data-original=\"http:\/\/vnreview.vn\/image\/17\/21\/53\/1721537.jpg?t=1508652474768\" height=\"\" rel=\"lightbox\" src=\"http:\/\/vnreview.vn\/image\/17\/21\/53\/1721537.jpg?t=1508652474768\" title=\"7 th\u1ee7 \u0111o\u1ea1n \u0111\u00e1nh c\u1eafp m\u1eadt m\u00e3 ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi - \u1ea2nh 3.\" width=\"\" \/>\n<\/p>\n<p data-placeholder=\"[nh\u1eadp ch\u00fa th\u00edch]\">\n\t&nbsp;\n<\/p>\n<p>\n\tTheo b&aacute;o c&aacute;o v\u1ec1 nh\u1eefng m\u1ed1i \u0111e do\u1ea1 tr&ecirc;n Internet n\u0103m 2017 c\u1ee7a Symantec, c&aacute;c ho&aacute; \u0111\u01a1n gi\u1ea3 m\u1ea1o l&agrave; ph\u01b0\u01a1ng th\u1ee9c l\u1eeba \u0111\u1ea3o h&agrave;ng \u0111\u1ea7u.\n<\/p>\n<p>\n\t&nbsp;\n<\/p>\n<p>\n\t<img decoding=\"async\" alt=\"7 th\u1ee7 \u0111o\u1ea1n \u0111\u00e1nh c\u1eafp m\u1eadt m\u00e3 ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi - \u1ea2nh 4.\" data-original=\"http:\/\/vnreview.vn\/image\/17\/21\/54\/1721543.jpg?t=1508652532718\" height=\"\" rel=\"lightbox\" src=\"http:\/\/vnreview.vn\/image\/17\/21\/54\/1721543.jpg?t=1508652532718\" title=\"7 th\u1ee7 \u0111o\u1ea1n \u0111\u00e1nh c\u1eafp m\u1eadt m\u00e3 ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi - \u1ea2nh 4.\" width=\"\" \/>\n<\/p>\n<p data-placeholder=\"[nh\u1eadp ch\u00fa th\u00edch]\">\n\t&nbsp;\n<\/p>\n<p>\n\t\u01afu \u0111i\u1ec3m: d\u1ee5 d\u1ed7 ng\u01b0\u1eddi d&ugrave;ng tr\u1ef1c ti\u1ebfp giao m\u1eadt m&atilde;, kh\u1ea3 n\u0103ng th&agrave;nh c&ocirc;ng cao, d\u1ec5 d&agrave;ng \u0111\u01b0\u1ee3c thay \u0111\u1ed5i \u0111\u1ec3 t\u01b0\u01a1ng th&iacute;ch v\u1edbi nhi\u1ec1u d\u1ecbch v\u1ee5 kh&aacute;c nhau (trong \u0111&oacute; Apple ID l&agrave; m\u1ee5c ti&ecirc;u \u0111\u01b0\u1ee3c nh\u1eafm \u0111\u1ebfn nhi\u1ec1u nh\u1ea5t)\n<\/p>\n<p>\n\tNh\u01b0\u1ee3c \u0111i\u1ec3m: email spam d\u1ec5 b\u1ecb l\u1ecdc b\u1edfi c&aacute;c d\u1ecbch v\u1ee5 email ho\u1eb7c c&aacute;c m&aacute;y l\u1ecdc spam\n<\/p>\n<p>\n\tC&aacute;ch ph&ograve;ng tr&aacute;nh: hi\u1ec7n tr&ecirc;n Internet c&oacute; r\u1ea5t nhi\u1ec1u b&agrave;i vi\u1ebft v\u1ec1 ph&ograve;ng tr&aacute;nh l\u1eeba \u0111\u1ea3o qua email, ho\u1eb7c b\u1ea1n c&oacute; th\u1ec3 t\u0103ng m\u1ee9c \u0111\u1ed9 l\u1ecdc spam tr&ecirc;n d\u1ecbch v\u1ee5 m&igrave;nh \u0111ang s\u1eed d\u1ee5ng l&ecirc;n m\u1ee9c cao nh\u1ea5t, v&agrave; lu&ocirc;n ki\u1ec3m tra k\u1ef9 c&aacute;c \u0111\u01b0\u1eddng d\u1eabn tr\u01b0\u1edbc khi click v&agrave;o \u0111&oacute;.\n<\/p>\n<p>\n\t<strong>4. T\u1ea5n c&ocirc;ng Phi k\u1ef9 thu\u1eadt (Social Engineering)<\/strong>\n<\/p>\n<p>\n\tT\u1ea5n c&ocirc;ng Phi k\u1ef9 thu\u1eadt l&agrave; h&igrave;nh th\u1ee9c t\u01b0\u01a1ng t\u1ef1 Phising nh\u01b0ng di\u1ec5n ra ngo&agrave;i \u0111\u1eddi th\u1ef1c, kh&ocirc;ng c\u1ea7n s\u1eed d\u1ee5ng b\u1ea5t k\u1ef3 bi\u1ec7n ph&aacute;p k\u1ef9 thu\u1eadt n&agrave;o.\n<\/p>\n<p>\n\tM\u1ed9t ph\u1ea7n quan tr\u1ecdng trong c&ocirc;ng vi\u1ec7c c\u1ee7a m\u1ed9t nh&acirc;n vi&ecirc;n ki\u1ec3m to&aacute;n b\u1ea3o m\u1eadt th&ocirc;ng tin l&agrave; ki\u1ec3m tra c&aacute;c th&ocirc;ng tin m&agrave; ng\u01b0\u1eddi d&ugrave;ng c\u1ee7a h\u1ecd n\u1eafm \u0111\u01b0\u1ee3c. \u0110\u1ec3 l&agrave;m nh\u01b0 v\u1eady, c&aacute;c c&ocirc;ng ty an ninh m\u1ea1ng th\u01b0\u1eddng cho nh&acirc;n vi&ecirc;n c\u1ee7a m&igrave;nh g\u1ecdi \u0111i\u1ec7n tho\u1ea1i tr\u1ef1c ti\u1ebfp \u0111\u1ebfn \u0111\u1ed1i t\u01b0\u1ee3ng m&agrave; h\u1ecd \u0111ang th\u1ef1c hi\u1ec7n ki\u1ec3m to&aacute;n. Hacker s\u1ebd g\u1ecdi cho n\u1ea1n nh&acirc;n v&agrave; th&ocirc;ng b&aacute;o r\u1eb1ng h\u1eafn ta l&agrave; nh&acirc;n vi&ecirc;n h\u1ed7 tr\u1ee3 m\u1edbi, v&agrave; h\u1eafn c\u1ea7n m\u1eadt m&atilde; c\u1ee7a h\u1ecd \u0111\u1ec3 ph\u1ee5c v\u1ee5 m\u1ee5c \u0111&iacute;ch ki\u1ec3m to&aacute;n, ki\u1ec3m tra h\u1ec7 th\u1ed1ng&#8230; T\u1ea5t nhi&ecirc;n, n\u1ea1n nh&acirc;n kh&ocirc;ng h\u1ec1 nghi ng\u1edd g&igrave; v&agrave; s\u1ebd l\u1eadp t\u1ee9c trao m\u1eadt m&atilde;.\n<\/p>\n<p>\n\tT\u1ea5n c&ocirc;ng Phi k\u1ef9 thu\u1eadt \u0111&atilde; t\u1ed3n t\u1ea1i t\u1eeb h&agrave;ng th\u1ebf k\u1ef7. Th&ocirc;ng qua th\u1ee7 thu\u1eadt m\u1ea1o danh \u0111\u1ec3 \u0111i v&agrave;o nh\u1eefng khu v\u1ef1c c\u1ea5m l&agrave; m\u1ed9t v&iacute; d\u1ee5 \u0111i\u1ec3n h&igrave;nh, v&agrave; ch\u1ec9 c&oacute; th\u1ec3 b\u1ecb ph&aacute;t hi\u1ec7n n\u1ebfu n\u1ea1n nh&acirc;n c&oacute; m\u1ed9t s\u1ed1 ki\u1ebfn th\u1ee9c c\u1ee5 th\u1ec3. B\u1edfi trong th\u1ee7 thu\u1eadt t\u1ea5n c&ocirc;ng n&agrave;y, hacker kh&ocirc;ng nh\u1ea5t thi\u1ebft ph\u1ea3i h\u1ecfi tr\u1ef1c ti\u1ebfp m\u1eadt m&atilde;, ch&uacute;ng c&oacute; th\u1ec3 \u0111&oacute;ng vai m\u1ed9t ng\u01b0\u1eddi th\u1ee3 s\u1eeda n\u01b0\u1edbc hay s\u1eeda \u0111i\u1ec7n \u0111\u1ec3 \u0111i v&agrave;o khu v\u1ef1c b\u1ea3o m\u1eadt&#8230;\n<\/p>\n<p>\n\t\u0110o\u1ea1n video d\u01b0\u1edbi \u0111&acirc;y cho ch&uacute;ng ta th\u1ea5y ph\u01b0\u01a1ng th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a T\u1ea5n c&ocirc;ng Phi k\u1ef9 thu\u1eadt:\n<\/p>\n<p>\n\t\u01afu \u0111i\u1ec3m: c&aacute;c hacker chuy&ecirc;n nghi\u1ec7p c&oacute; th\u1ec3 thu th\u1eadp \u0111\u01b0\u1ee3c nhi\u1ec1u th&ocirc;ng tin c&oacute; gi&aacute; tr\u1ecb r\u1ea5t cao t\u1eeb m\u1ed9t nh&oacute;m \u0111\u1ed1i t\u01b0\u1ee3ng ng\u01b0\u1eddi d&ugrave;ng. Th\u1ee7 \u0111o\u1ea1n n&agrave;y c&oacute; th\u1ec3 \u0111\u01b0\u1ee3c &aacute;p d\u1ee5ng v\u1edbi b\u1ea5t k\u1ef3 ai, trong b\u1ea5t k\u1ef3 ho&agrave;n c\u1ea3nh n&agrave;o, v&agrave; c\u1ef1c k\u1ef3 b&iacute; m\u1eadt.\n<\/p>\n<p>\n\tNh\u01b0\u1ee3c \u0111i\u1ec3m: n\u1ebfu b\u1ecb l\u1ed9 s\u1ebd &quot;r&uacute;t d&acirc;y \u0111\u1ed9ng r\u1eebng&quot;, \u0111\u1ed3ng th\u1eddi th&ocirc;ng tin thu \u0111\u01b0\u1ee3c ch\u01b0a ch\u1eafc \u0111&atilde; ho&agrave;n to&agrave;n \u0111&uacute;ng.\n<\/p>\n<p>\n\tC&aacute;ch ph&ograve;ng tr&aacute;nh: r\u1ea5t kh&oacute; \u0111\u1ec3 ph&ograve;ng tr&aacute;nh. H\u1ea7u h\u1ebft n\u1ea1n nh&acirc;n ch\u1ec9 nh\u1eadn ra m&igrave;nh \u0111&atilde; b\u1ecb l\u1eeba sau khi hacker \u0111&atilde; ho&agrave;n th&agrave;nh c&ocirc;ng vi\u1ec7c. B\u1ea1n c\u1ea7n ph\u1ea3i n\u1eafm \u0111\u01b0\u1ee3c nh\u1eefng ki\u1ebfn th\u1ee9c v&agrave; nh\u1eefng l\u01b0u &yacute; v\u1ec1 m\u1eb7t an ninh, v&agrave; h\u1ea1n ch\u1ebf \u0111\u01b0a ra c&aacute;c th&ocirc;ng tin c&aacute; nh&acirc;n c&oacute; th\u1ec3 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m&igrave;nh sau n&agrave;y.\n<\/p>\n<p>\n\t<strong>5. Ph\u01b0\u01a1ng th\u1ee9c B\u1ea3ng c\u1ea7u v\u1ed3ng (Rainbow Table)<\/strong>\n<\/p>\n<p>\n\tB\u1ea3ng c\u1ea7u v&ograve;ng l&agrave; h&igrave;nh th\u1ee9c t\u1ea5n c&ocirc;ng m\u1eadt m&atilde; ngo\u1ea1i tuy\u1ebfn, trong \u0111&oacute; hacker n\u1eafm \u0111\u01b0\u1ee3c m\u1ed9t danh s&aacute;ch username v&agrave; m\u1eadt m&atilde;, nh\u01b0ng \u0111&atilde; b\u1ecb m&atilde; ho&aacute;. M\u1eadt m&atilde; m&atilde; ho&aacute; \u0111&atilde; b\u1ecb b\u0103m (hashed), do \u0111&oacute; n&oacute; s\u1ebd hi\u1ec3n th\u1ecb ra kh&aacute;c ho&agrave;n to&agrave;n v\u1edbi m\u1eadt m&atilde; g\u1ed1c. V&iacute; d\u1ee5: m\u1eadt m&atilde; logmein s\u1ebd b\u1ecb b\u0103m ra th&agrave;nh 8f4047e3233b39e4444e1aef240e80aa.\n<\/p>\n<p>\n\t\u0110\u1ec3 b\u1ebb kho&aacute; m\u1eadt kh\u1ea9u n&agrave;y, hacker s\u1ebd ch\u1ea1y m\u1ed9t thu\u1eadt to&aacute;n b\u0103m, trong \u0111&oacute; b\u0103m m\u1ed9t danh s&aacute;ch c&aacute;c m\u1eadt m&atilde; ph\u1ed5 bi\u1ebfn v&agrave; so s&aacute;nh ch&uacute;ng v\u1edbi c&aacute;c m\u1eadt m&atilde; m&atilde; ho&aacute;. N\u1ebfu m\u1eadt m&atilde; \u0111\u01b0\u1ee3c b\u0103m b\u1eb1ng MD5 th&igrave; c&ograve;n d\u1ec5 d&agrave;ng h\u01a1n, v&igrave; thu\u1eadt to&aacute;n MD5 hi\u1ec7n c&oacute; th\u1ec3 b\u1ecb gi\u1ea3i m&atilde; kh&aacute; d\u1ec5 d&agrave;ng.\n<\/p>\n<p>\n\tT\u1ea5t nhi&ecirc;n, thay v&igrave; ph\u1ea3i x\u1eed l&yacute; h&agrave;ng tr\u0103m ng&agrave;n m\u1eadt m&atilde; v&agrave; sau \u0111&oacute; mang ch&uacute;ng ra so s&aacute;nh, hacker c&oacute; th\u1ec3 s\u1eed d\u1ee5ng m\u1ed9t B\u1ea3ng c\u1ea7u v\u1ed3ng &#8211; v\u1ed1n l&agrave; m\u1ed9t danh s&aacute;ch c&aacute;c gi&aacute; tr\u1ecb \u0111&atilde; \u0111\u01b0\u1ee3c gi\u1ea3i m&atilde; t\u1eeb tr\u01b0\u1edbc, gi&uacute;p gi\u1ea3m th\u1eddi gian b\u1ebb kho&aacute; \u0111i nhi\u1ec1u l\u1ea7n.\n<\/p>\n<p>\n\t\u01afu \u0111i\u1ec3m: c&oacute; th\u1ec3 b\u1ebb kho&aacute; m\u1ed9t l\u01b0\u1ee3ng l\u1edbn m\u1eadt m&atilde; trong th\u1eddi gian ng\u1eafn.\n<\/p>\n<p>\n\tNh\u01b0\u1ee3c \u0111i\u1ec3m: c\u1ea7n \u1ed5 c\u1ee9ng l\u1edbn \u0111\u1ec3 l\u01b0u tr\u1eef c&aacute;c B\u1ea3ng c\u1ea7u v\u1ed3ng, v&agrave; c&aacute;c gi&aacute; tr\u1ecb \u0111\u01b0\u1ee3c l\u01b0u trong B\u1ea3ng c\u1ea7u v\u1ed3ng c\u0169ng h\u1ea1n ch\u1ebf (tr\u1eeb khi c&oacute; b\u1ea3ng kh&aacute;c b\u1ed5 sung)\n<\/p>\n<p>\n\tC&aacute;ch ph&ograve;ng tr&aacute;nh: tr&aacute;nh s\u1eed d\u1ee5ng c&aacute;c trang web b\u0103m m\u1eadt m&atilde; b\u1eb1ng SHA1 hay MD5, ho\u1eb7c c&aacute;c trang web gi\u1edbi h\u1ea1n m\u1eadt m&atilde; c\u1ee7a b\u1ea1n trong m\u1ed9t chu\u1ed7i k&yacute; t\u1ef1 ng\u1eafn, ho\u1eb7c c\u1ea5m s\u1eed d\u1ee5ng m\u1ed9t s\u1ed1 k&yacute; t\u1ef1. Lu&ocirc;n s\u1eed d\u1ee5ng m\u1eadt m&atilde; c&agrave;ng ph\u1ee9c t\u1ea1p c&agrave;ng t\u1ed1t.\n<\/p>\n<p>\n\t<strong>6. Malware\/Keylogger<\/strong>\n<\/p>\n<p>\n\t\u0110&acirc;y l&agrave; th\u1ee7 \u0111o\u1ea1n qu&aacute; ph\u1ed5 bi\u1ebfn v&agrave; nhi\u1ec1u ng\u01b0\u1eddi g\u1eb7p ph\u1ea3i.\n<\/p>\n<p>\n\t&nbsp;\n<\/p>\n<p>\n\t<img decoding=\"async\" alt=\"7 th\u1ee7 \u0111o\u1ea1n \u0111\u00e1nh c\u1eafp m\u1eadt m\u00e3 ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi - \u1ea2nh 5.\" data-original=\"http:\/\/vnreview.vn\/image\/17\/21\/54\/1721540.jpg?t=1508654589237\" height=\"\" rel=\"lightbox\" src=\"http:\/\/vnreview.vn\/image\/17\/21\/54\/1721540.jpg?t=1508654589237\" title=\"7 th\u1ee7 \u0111o\u1ea1n \u0111\u00e1nh c\u1eafp m\u1eadt m\u00e3 ph\u1ed5 bi\u1ebfn nh\u1ea5t th\u1ebf gi\u1edbi - \u1ea2nh 5.\" width=\"\" \/>\n<\/p>\n<p data-placeholder=\"[nh\u1eadp ch\u00fa th\u00edch]\">\n\t&nbsp;\n<\/p>\n<p>\n\tC&aacute;c malware c&oacute; th\u1ec3 nh\u1eafm v&agrave;o c&aacute;c d\u1eef li\u1ec7u c&aacute; nh&acirc;n, ho\u1eb7c th\u1ea3 m\u1ed9t con Trojan \u0111i\u1ec1u khi\u1ec3n t\u1eeb xa \u0111\u1ec3 \u0103n c\u1eafp th&ocirc;ng tin ng\u01b0\u1eddi d&ugrave;ng.\n<\/p>\n<p>\n\t\u01afu \u0111i\u1ec3m: c&oacute; qu&aacute; nhi\u1ec1u malware v\u1edbi nhi\u1ec1u ph\u01b0\u01a1ng th\u1ee9c ho\u1ea1t \u0111\u1ed9ng kh&aacute;c nhau, r\u1ea5t kh&oacute; b\u1ecb ph&aacute;t hi\u1ec7n\n<\/p>\n<p>\n\tNh\u01b0\u1ee3c \u0111i\u1ec3m: c&oacute; th\u1ec3 b\u1ecb c&aacute;c ph\u1ea7n m\u1ec1m b\u1ea3o v\u1ec7 ng\u0103n ch\u1eb7n.\n<\/p>\n<p>\n\tC&aacute;ch ph&ograve;ng tr&aacute;nh: c&agrave;i \u0111\u1eb7t c&aacute;c ph\u1ea7n m\u1ec1m antivirus ho\u1eb7c antimalware, h\u1ea1n ch\u1ebf download t\u1eeb c&aacute;c ngu\u1ed3n ch\u01b0a x&aacute;c \u0111\u1ecbnh, ch&uacute; &yacute; trong kh&acirc;u c&agrave;i \u0111\u1eb7t ph\u1ea7n m\u1ec1m, tr&aacute;nh xa c&aacute;c trang web c&oacute; n\u1ed9i dung nguy hi\u1ec3m (nh\u01b0 trang web cung c\u1ea5p crack, keygen&#8230;), c&agrave;i c&aacute;c ph\u1ea7n m\u1edf r\u1ed9ng ch\u1eb7n m&atilde; tr&ecirc;n c&aacute;c tr&igrave;nh duy\u1ec7t.\n<\/p>\n<p>\n\t<strong>7. Ph\u01b0\u01a1ng th\u1ee9c Spidering<\/strong>\n<\/p>\n<p>\n\tPh\u01b0\u01a1ng th\u1ee9c n&agrave;y li&ecirc;n k\u1ebft v\u1edbi ph\u01b0\u01a1ng th\u1ee9c &quot;T\u1eeb \u0111i\u1ec3n&quot; \u1edf \u0111\u1ea7u b&agrave;i. N\u1ebfu m\u1ed9t hacker t&igrave;m c&aacute;ch x&acirc;m nh\u1eadp m\u1ed9t t\u1ed5 ch\u1ee9c hay c&ocirc;ng ty nh\u1ea5t \u0111\u1ecbnh, ch&uacute;ng s\u1ebd th\u1eed m\u1ed9t lo\u1ea1t c&aacute;c m\u1eadt m&atilde; c&oacute; li&ecirc;n quan t\u1edbi c&ocirc;ng ty \u0111&oacute; &#8211; c&oacute; th\u1ec3 l&agrave; c&aacute;c c\u1ee5m t\u1eeb \u0111\u01b0\u1ee3c thu th\u1eadp th&ocirc;ng qua m\u1ed9t con nh\u1ec7n t&igrave;m ki\u1ebfm.\n<\/p>\n<p>\n\t&quot;Con nh\u1ec7n t&igrave;m ki\u1ebfm&quot; s\u1ebd &quot;b&ograve;&quot; quanh Internet, len l\u1ecfi v&agrave;o c&aacute;c b\u1ed9 m&aacute;y t&igrave;m ki\u1ebfm, c&aacute;c trang web \u0111\u1ec3 thu th\u1eadp th&ocirc;ng tin v&agrave; l\u1eadp th&agrave;nh m\u1ed9t danh s&aacute;ch &#8211; t\u1ee9c l&agrave; t\u1eadp tin &quot;T\u1eeb \u0111i\u1ec3n&quot;.\n<\/p>\n<p>\n\t\u01afu \u0111i\u1ec3m: c&oacute; th\u1ec3 b\u1ebb kho&aacute; c&aacute;c m\u1eadt m&atilde; c\u1ee7a c&aacute;c c&aacute; nh&acirc;n c\u1ea5p cao trong c&ocirc;ng ty, k\u1ebft h\u1ee3p v\u1edbi t\u1ea5n c&ocirc;ng &quot;T\u1eeb \u0111i\u1ec3n&quot; t\u1ea1o th&agrave;nh m\u1ed9t c\u1eb7p \u0111&ocirc;i nguy hi\u1ec3m\n<\/p>\n<p>\n\tNh\u01b0\u1ee3c \u0111i\u1ec3m: v&ocirc; hi\u1ec7u v\u1edbi c&aacute;c m\u1ea1ng l\u01b0\u01a1&iacute; b\u1ea3o m\u1eadt ph\u1ee9c t\u1ea1p\n<\/p>\n<p>\n\tC&aacute;ch ph&ograve;ng tr&aacute;nh: s\u1eed d\u1ee5ng m\u1eadt kh\u1ea9u ph\u1ee9c t\u1ea1p kh&ocirc;ng li&ecirc;n quan \u0111\u1ebfn c&aacute; nh&acirc;n, c&ocirc;ng vi\u1ec7c, c\u01a1 quan&#8230;\n<\/p>\n<p>\n\tT&oacute;m l\u1ea1i, h&atilde;y nh\u1edb \u0111i\u1ec1u n&agrave;y \u0111\u1ec3 gi\u1eef m\u1eadt m&atilde; c\u1ee7a b\u1ea1n lu&ocirc;n an to&agrave;n: s\u1eed d\u1ee5ng m\u1ed9t m\u1eadt kh\u1ea9u duy nh\u1ea5t cho t\u1eebng t&agrave;i kho\u1ea3n kh&aacute;c nhau, m\u1eadt kh\u1ea9u n&agrave;y c\u1ea7n d&agrave;i, v\u1edbi nhi\u1ec1u k&yacute; t\u1ef1 \u0111\u1eb7c bi\u1ec7t, kh&ocirc;ng li&ecirc;n quan \u0111\u1ebfn c&aacute; nh&acirc;n b\u1ea1n hay b\u1ea5t k\u1ef3 ai b\u1ea1n bi\u1ebft.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Theo&nbsp;MakeUseOf, th\u1ef1c t\u1ebf v\u1ec1 c\u1ee5m t\u1eeb &quot;b\u1ebb kho&aacute; b\u1ea3o m\u1eadt&quot; kh&ocirc;ng h\u1ec1 ph\u1ee9c t\u1ea1p v&agrave; b&iacute; hi\u1ec3m nh\u01b0 b\u1ea1n ngh\u0129,<\/p>\n","protected":false},"author":12,"featured_media":5966,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[67,11,8,73,74],"tags":[128,180,181,380,317,316],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.2.1 - 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