{"id":4510,"date":"2026-01-17T09:35:58","date_gmt":"2026-01-17T09:35:58","guid":{"rendered":"https:\/\/thorenbook.com\/?p=4510"},"modified":"2026-01-17T09:35:58","modified_gmt":"2026-01-17T09:35:58","slug":"tat-ca-deu-co-the-phan-tich-thanh-nhan-tu","status":"publish","type":"post","link":"https:\/\/thorenbook.com\/ja\/tat-ca-deu-co-the-phan-tich-thanh-nhan-tu\/","title":{"rendered":"T\u1ea5t c\u1ea3 \u0111\u1ec1u c\u00f3 th\u1ec3 ph\u00e2n t\u00edch th\u00e0nh nh\u00e2n t\u1eed"},"content":{"rendered":"

Th\u1ee3 R\u00e8n y\u00eau to\u00e1n.
\nNg\u00e0y x\u01b0a, gi\u1eefa \u0111\u1ee7 th\u1ee9 m\u00f4n h\u1ecdc, to\u00e1n lu\u00f4n \u0111\u01b0\u1ee3c th\u1ee3 r\u00e8n \u01b0u \u00e1i h\u01a1n m\u1ed9t ch\u00fat. Kh\u00f4ng h\u1eb3n v\u00ec l\u00e0m nhanh hay \u0111i\u1ec3m cao, m\u00e0 v\u00ec to\u00e1n cho c\u1ea3m gi\u00e1c r\u1ea5t \u201c\u0111\u00e3\u201d: m\u1ecdi th\u1ee9 r\u1ed1i r\u1eafm \u0111\u1ebfn m\u1ea5y, cu\u1ed1i c\u00f9ng c\u0169ng c\u00f3 th\u1ec3 quy v\u1ec1 v\u00e0i con s\u1ed1 g\u1ecdn g\u00e0ng.<\/p>\n

 <\/p>\n

D\u1ea1o g\u1ea7n \u0111\u00e2y, trong c\u00f4ng vi\u1ec7c, th\u1ee3 r\u00e8n hay c\u00f3 c\u1ea3m gi\u00e1c kh\u00f4ng r\u00f5 r\u00e0ng \u0111\u1ec3 k\u1ebft n\u1ed1i gi\u1eefa \u0111i\u1ec1u m\u00ecnh mong mu\u1ed1n t\u1edbi h\u00e0nh \u0111\u1ed9ng c\u1ea7n l\u00e0m. M\u1ee5c ti\u00eau th\u00ec l\u1edbn, kh\u00e1i ni\u1ec7m th\u00ec m\u01a1 h\u1ed3, c\u00f2n b\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u00e2u th\u00ec ho\u00e0n to\u00e0n kh\u00f4ng r\u00f5. C\u00e0ng ngh\u0129 c\u00e0ng th\u1ea5y n\u1eb7ng \u0111\u1ea7u. Th\u1ebf l\u00e0 th\u1ee3 r\u00e8n th\u1eed l\u00e0m m\u1ed9t vi\u1ec7c r\u1ea5t \u0111\u01a1n gi\u1ea3n: b\u1ebb nh\u1ecf c\u00e1i \u0111\u00edch m\u00ecnh \u0111ang h\u01b0\u1edbng t\u1edbi<\/strong>. Ch\u1ec9 ri\u00eang vi\u1ec7c \u0111\u00f3 th\u00f4i \u0111\u00e3 khi\u1ebfn m\u1ecdi th\u1ee9 tr\u1edf n\u00ean s\u00e1ng t\u1ecf h\u01a1n r\u1ea5t nhi\u1ec1u.<\/p>\n

 <\/p>\n

R\u1ed3i th\u1ee3 r\u00e8n nh\u1eadn ra ch\u1eb3ng ph\u1ea3i vi\u1ec7c n\u00e0y gi\u1ed1ng h\u1ec7t ph\u00e2n t\u00edch \u0111a th\u1ee9c th\u00e0nh nh\u00e2n t\u1eed <\/strong>hay sao?<\/p>\n

 <\/p>\n

Ph\u00e2n t\u00edch \u0111a th<\/strong>\u1ee9c th\u00e0nh nh\u00e2n t\u1eed \u00e1p d\u1ee5ng v\u00e0o <\/strong>cu\u1ed9c s\u1ed1ng<\/strong><\/span><\/h2>\n

\u00a0<\/strong><\/p>\n

Trong to\u00e1n h\u1ecdc:<\/p>\n

    \n
  • Ph\u01b0\u01a1ng tr\u00ecnh b\u1eadc hai, b\u1eadc ba\u2026 \u0111\u1ec1u c\u00f3 th\u1ec3 ph\u00e2n t\u00edch th\u00e0nh c\u00e1c th\u1eeba s\u1ed1 v\u1edbi c\u00e1c nghi\u1ec7m c\u1ee7a ch\u00fang<\/li>\n
  • M\u1ed9t s\u1ed1 t\u1ef1 nhi\u00ean c\u00f3 th\u1ec3 ph\u00e2n t\u00edch th\u00e0nh t\u00edch c\u1ee7a c\u00e1c s\u1ed1 nguy\u00ean t\u1ed1<\/li>\n<\/ul>\n

     <\/p>\n

    N\u1ebfu v\u1eady, nh\u1eefng kh\u00e1i ni\u1ec7m t\u01b0\u1edfng nh\u01b0 r\u1ea5t \u0111\u1ecbnh t\u00ednh trong \u0111\u1eddi s\u1ed1ng \u2013 \u0111\u1ed9ng l\u1ef1c, th\u00e0nh c\u00f4ng, ni\u1ec1m tin, \u1ea5n t\u01b0\u1ee3ng \u2013 bi\u1ebft \u0111\u00e2u c\u0169ng c\u00f3 th\u1ec3 ph\u00e2n t\u00edch th\u00e0nh c\u00e1c nh\u00e2n t\u1ed1 th\u00e0nh ph\u1ea7n<\/strong>?<\/p>\n

     <\/p>\n

    Gi\u1ed1ng nh\u01b0 to\u00e1n h\u1ecdc, ta c\u00f3 th\u1ec3 l\u00e0m theo hai b\u01b0\u1edbc:<\/p>\n

      \n
    1. Ph\u00e2n t\u00e1ch v\u1ea5n \u0111\u1ec1 th\u00e0nh c\u00e1c y\u1ebfu t\u1ed1<\/strong><\/li>\n
    2. D\u00f9ng ph\u00e9p c\u1ed9ng, tr\u1eeb, nh\u00e2n, chia \u0111\u1ec3 bi\u1ec3u \u0111\u1ea1t m\u1ed1i quan h\u1ec7 gi\u1eefa ch\u00fang<\/strong><\/li>\n<\/ol>\n

       <\/p>\n

      Th\u1eed \u201cl\u00e0m to\u00e1n\u201d v\u1edbi cu\u1ed9c s\u1ed1ng<\/strong><\/span><\/h2>\n

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

      \u0110\u1ed9ng l\u1ef1c<\/strong><\/p>\n

      Motivation = Ni\u1ec1m vui c\u1ee7a ph\u1ea7n th\u01b0\u1edfng<\/em> \u2013 S\u1ef1 nh\u00e0m ch\u00e1n c\u1ee7a vi\u1ec7c th\u1ef1c hi\u1ec7n<\/em><\/p>\n

      Th\u00e0nh c\u00f4ng<\/strong><\/p>\n

      Th\u00e0nh c\u00f4ng = \u0110\u1ed9 \u0111\u00fang \u0111\u1eafn c\u1ee7a suy ngh\u0129<\/em> \u00d7 N\u1ed7 l\u1ef1c<\/em> \u00d7 T\u00e0i n\u0103ng<\/em><\/p>\n

      Trong \u0111\u00f3, \u0111\u1ed9 \u0111\u00fang \u0111\u1eafn c\u1ee7a suy ngh\u0129<\/em> c\u00f3 d\u1ea5u \u00e2m ho\u1eb7c d\u01b0\u01a1ng<\/strong>.
      \nN\u1ebfu n\u1ed7 l\u1ef1c v\u00e0 t\u00e0i n\u0103ng \u0111\u1ec1u l\u1edbn, nh\u01b0ng suy ngh\u0129 mang d\u1ea5u \u00e2m, k\u1ebft qu\u1ea3 l\u00e0 th\u00e0nh c\u00f4ng \u00e2m hay ta t\u1ea1m g\u1ecdi l\u00e0 th\u00e0nh c\u00f4ng theo h\u01b0\u1edbng ph\u00e1 ho\u1ea1i. Ki\u1ec3u nh\u01b0 hacker th\u00e0nh c\u00f4ng trong vi\u1ec7c hack d\u1eef li\u1ec7u c\u1ee7a m\u1ed9t h\u1ec7 th\u1ed1ng c\u00f4ng<\/p>\n

       <\/p>\n

      M\u1ee9c \u0111\u1ed9 tin t\u01b0\u1edfng c\u1ee7a c\u1ea5p tr\u00ean<\/strong><\/p>\n

      Tin t\u01b0\u1edfng = Th\u00e0nh qu\u1ea3 c\u00f4ng vi\u1ec7c<\/em> \u2013 (Th\u00e1i \u0111\u1ed9 x\u1ea5u<\/em> + Thi\u1ebfu trao \u0111\u1ed5i<\/em>)<\/p>\n

      Th\u1eddi gian t\u0103ng ca<\/strong><\/p>\n

      T\u0103ng ca = Th\u1eddi gian l\u00e0m th\u1ef1c t\u1ebf<\/em> \u2013 Th\u1eddi gian quy \u0111\u1ecbnh<\/em><\/p>\n

      M\u1ed9t b\u1eefa \u0103n \u1edf nh\u00e0 h\u00e0ng Ph\u00e1p<\/strong><\/p>\n

      Tr\u1ea3i nghi\u1ec7m = \u0110\u1ed3 \u0103n<\/em> \u00d7 Kh\u00f4ng kh\u00ed<\/em> \u00d7 Ph\u1ee5c v\u1ee5<\/em><\/p>\n

      Trong \u0111\u00f3:<\/p>\n

      \u0110\u1ed3 \u0103n = Khai v\u1ecb + Soup + M\u00f3n c\u00e1 + M\u00f3n th\u1ecbt + B\u00e1nh m\u00ec + Tr\u00e1ng mi\u1ec7ng + \u0110\u1ed3 u\u1ed1ng sau b\u1eefa<\/em><\/p>\n

      M\u1ee9c \u0111\u1ed9 \u1ea5n t\u01b0\u1ee3ng<\/strong><\/p>\n

      \u1ea4n t\u01b0\u1ee3ng = Th\u1ef1c t\u1ebf<\/em> \u2013 K\u1ef3 v\u1ecdng<\/em><\/p>\n

      Th\u1eddi trang<\/strong><\/p>\n

      Th\u1eddi trang = Trang ph\u1ee5c<\/em> \u00d7 C\u00e1ch ph\u1ed1i \u0111\u1ed3<\/em><\/p>\n

      L\u1eddi bi\u1ec7n minh<\/strong><\/p>\n

      = (L\u1eddi tho\u00e1i th\u00e1c tr\u00e1ch nhi\u1ec7m<\/em> \u00d7 T\u00e2m tr\u1ea1ng t\u1ef1 v\u1ec7<\/em>) \u00a0ho\u1eb7c\u00a0 =(L\u1eddi t\u1ef1 tr\u00e1ch<\/em> \u00d7 Mong mu\u1ed1n \u0111\u01b0\u1ee3c th\u1ea5u hi\u1ec3u<\/em>)<\/p>\n

       <\/p>\n

      B\u1eb1ng c\u00e1ch vi\u1ebft ra nh\u01b0 th\u1ebf n\u00e0y ta s\u1ebd th\u1ea5y m\u1ecdi th\u1ee9 s\u00e1ng t\u1ecf h\u01a1n.<\/p>\n

       <\/p>\n

      V\u00ec sao vi\u1ec7c \u201cph\u00e2n t\u00edch th\u00e0nh nh\u00e2n t\u1eed\u201d l\u1ea1i th\u00fa v\u1ecb?<\/strong><\/span><\/h2>\n

      V\u00ec n\u00f3 gi\u00fap ta:<\/p>\n

        \n
      • Nh\u1eadn ra y\u1ebfu t\u1ed1 c\u1ed1t l\u00f5i<\/strong> \u305d\u3057\u3066 y\u1ebfu t\u1ed1 g\u00e2y nhi\u1ec5u<\/strong><\/li>\n
      • Th\u1ea5y \u0111\u01b0\u1ee3c m\u1ed1i quan h\u1ec7 c\u1ed9ng \u2013 tr\u1eeb \u2013 nh\u00e2n \u2013 chia<\/strong>, \u0111\u00e2u l\u00e0 th\u1ee9 khu\u1ebfch \u0111\u1ea1i, \u0111\u00e2u l\u00e0 th\u1ee9 tri\u1ec7t ti\u00eau<\/li>\n
      • Ph\u00e2n bi\u1ec7t \u0111\u01b0\u1ee3c h\u1eb1ng s\u1ed1<\/strong> \u305d\u3057\u3066 bi\u1ebfn s\u1ed1<\/strong><\/li>\n
      • Bi\u1ebft y\u1ebfu t\u1ed1 n\u00e0o c\u00f3 \u201ctr\u1ecdng l\u01b0\u1ee3ng\u201d l\u1edbn nh\u1ea5t v\u1edbi k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng<\/li>\n<\/ul>\n

         <\/p>\n

        Quay l\u1ea1i v\u1edbi c\u00f4ng vi\u1ec7c c\u1ee7a Th\u1ee3 R\u00e8n. L\u00fac \u0111\u1eb7t m\u1ee5c ti\u00eau, th\u1ee3 r\u00e8n t\u1eebng vi\u1ebft:<\/p>\n

        \u201cT\u1ef1 \u0111\u1ed9ng h\u00f3a qu\u00e1 tr\u00ecnh chuy\u1ec3n b\u1ea3n v\u1ebd t\u1edbi c\u00e1c ph\u00f2ng ban kh\u00e1c.\u201d<\/p>\n

        Nghe c\u00f3 v\u1ebb l\u00e0 m\u1ee5c ti\u00eau c\u00f3 th\u1ec3 th\u1ef1c hi\u1ec7n, tuy v\u1eady n\u00f3 v\u1eabn ch\u01b0a c\u00f3 \u0111\u1ed9 ph\u00e2n gi\u1ea3i ph\u00f9 h\u1ee3p \u0111\u1ec3 \u0111i t\u1edbi h\u00e0nh \u0111\u1ed9ng.<\/p>\n

        Th\u1ebf l\u00e0 th\u1ee3 r\u00e8n \u0111em t\u01b0 duy ph\u00e2n t\u00edch nh\u00e2n t\u1eed v\u00e0o d\u00f9ng. M\u1ee5c ti\u00eau l\u1edbn \u0111\u01b0\u1ee3c t\u00e1ch th\u00e0nh c\u00e1c \u0111\u1ea7u vi\u1ec7c c\u1ee5 th\u1ec3:<\/p>\n

          \n
        • C\u00f3 danh s\u00e1ch nh\u1eefng ng\u01b0\u1eddi c\u1ea7n g\u1eedi email<\/li>\n
        • C\u00f3 m\u1eabu email chu\u1ea9n<\/li>\n
        • C\u00f3 file macro tr\u00edch xu\u1ea5t th\u00f4ng tin t\u1eeb b\u1ea3n v\u1ebd<\/li>\n
        • K\u1ebft n\u1ed1i \u0111\u01b0\u1ee3c ch\u1ee9c n\u0103ng g\u1eedi mail t\u1ef1 \u0111\u1ed9ng trong Outlook<\/li>\n<\/ul>\n

          Khi m\u1ee5c ti\u00eau \u0111\u01b0\u1ee3c b\u1ebb nh\u1ecf \u0111\u1ebfn m\u1ee9c chuy\u1ec3n \u0111\u01b0\u1ee3c th\u00e0nh h\u00e0nh \u0111\u1ed9ng<\/strong>, c\u00f4ng vi\u1ec7c b\u1ed7ng tr\u1edf n\u00ean c\u1ef1 th\u1ec3 h\u01a1n h\u1eb3n. C\u00e1i kh\u00f3 l\u00fac n\u00e0y c\u00f3 th\u1ec3 \u0111\u00e3 \u0111\u01b0\u1ee3c chuy\u1ec3n qua b\u00e0i to\u00e1n c\u1ee5 th\u1ec3, tuy nhi\u00ean so v\u1edbi vi\u1ec7c m\u01a1 h\u1ed3 trong suy ngh\u0129 th\u00ec tr\u1ea1ng th\u00e1i n\u00e0y c\u00f3 v\u1ebb cho ta \u0111\u01b0\u1ee3c s\u1ef1 tho\u1ea3i m\u00e1i h\u01a1n trong t\u00e2m tr\u1ea1ng.<\/p>\n

           <\/p>\n

          Th\u1ee3 r\u00e8n nh\u1eadn ra, trong r\u1ea5t nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, ch\u01b0a c\u1ea7n t\u1edbi ph\u00e9p nh\u00e2n, ph\u00e9p chia hay l\u0169y th\u1eeba<\/strong>.
          \nCh\u1ec9 c\u1ea7n ph\u00e9p c\u1ed9ng<\/strong> \u305d\u3057\u3066 tr\u1eeb<\/strong>, ta \u0111\u00e3 c\u00f3 th\u1ec3 c\u1ee5 th\u1ec3 h\u00f3a \u0111\u01b0\u1ee3c ph\u1ea7n l\u1edbn c\u00f4ng vi\u1ec7c r\u1ed3i.<\/p>\n

           <\/p>\n

          C\u00f3 l\u1ebd, to\u00e1n h\u1ecdc ch\u01b0a bao gi\u1edd r\u1eddi xa cu\u1ed9c s\u1ed1ng. Ch\u1ec9 l\u00e0 ta qu\u00ean m\u1ea5t c\u00e1ch d\u00f9ng n\u00f3.<\/p>\n

          V\u00e0 \u0111\u00f4i khi, \u0111\u1ec3 tho\u00e1t kh\u1ecfi c\u1ea3m gi\u00e1c m\u01a1 h\u1ed3, vi\u1ec7c c\u1ea7n l\u00e0m kh\u00f4ng ph\u1ea3i l\u00e0 c\u1ed1 g\u1eafng h\u01a1n \u2013 m\u00e0 l\u00e0 ph\u00e2n t\u00edch l\u1ea1i v\u1ea5n \u0111\u1ec1 th\u00e0nh nh\u1eefng nh\u00e2n t\u1eed \u0111\u1ee7 nh\u1ecf \u0111\u1ec3 b\u1eaft \u0111\u1ea7u<\/strong>.<\/p>\n

           <\/p>","protected":false},"excerpt":{"rendered":"

          Th\u1ee3 R\u00e8n y\u00eau to\u00e1n. Ng\u00e0y x\u01b0a, gi\u1eefa \u0111\u1ee7 th\u1ee9 m\u00f4n h\u1ecdc, to\u00e1n lu\u00f4n \u0111\u01b0\u1ee3c th\u1ee3 r\u00e8n \u01b0u \u00e1i h\u01a1n m\u1ed9t ch\u00fat. Kh\u00f4ng h\u1eb3n v\u00ec l\u00e0m nhanh hay \u0111i\u1ec3m cao, m\u00e0 v\u00ec to\u00e1n cho c\u1ea3m gi\u00e1c r\u1ea5t \u201c\u0111\u00e3\u201d: m\u1ecdi th\u1ee9 r\u1ed1i r\u1eafm \u0111\u1ebfn m\u1ea5y, cu\u1ed1i c\u00f9ng c\u0169ng c\u00f3 th\u1ec3 quy v\u1ec1 v\u00e0i con s\u1ed1 g\u1ecdn g\u00e0ng.   D\u1ea1o g\u1ea7n \u0111\u00e2y, trong c\u00f4ng vi\u1ec7c, th\u1ee3 r\u00e8n hay c\u00f3 c\u1ea3m gi\u00e1c kh\u00f4ng r\u00f5 r\u00e0ng \u0111\u1ec3 k\u1ebft n\u1ed1i gi\u1eefa \u0111i\u1ec1u m\u00ecnh mong mu\u1ed1n t\u1edbi h\u00e0nh \u0111\u1ed9ng c\u1ea7n l\u00e0m. M\u1ee5c ti\u00eau th\u00ec l\u1edbn, kh\u00e1i ni\u1ec7m th\u00ec m\u01a1 h\u1ed3, c\u00f2n b\u1eaft \u0111\u1ea7u t\u1eeb \u0111\u00e2u th\u00ec ho\u00e0n to\u00e0n kh\u00f4ng r\u00f5. C\u00e0ng ngh\u0129 c\u00e0ng th\u1ea5y n\u1eb7ng \u0111\u1ea7u. Th\u1ebf […]<\/p>","protected":false},"author":18,"featured_media":4511,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[40],"tags":[],"class_list":["post-4510","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized-vi"],"acf":[],"_links":{"self":[{"href":"https:\/\/thorenbook.com\/ja\/wp-json\/wp\/v2\/posts\/4510","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/thorenbook.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/thorenbook.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/thorenbook.com\/ja\/wp-json\/wp\/v2\/users\/18"}],"replies":[{"embeddable":true,"href":"https:\/\/thorenbook.com\/ja\/wp-json\/wp\/v2\/comments?post=4510"}],"version-history":[{"count":1,"href":"https:\/\/thorenbook.com\/ja\/wp-json\/wp\/v2\/posts\/4510\/revisions"}],"predecessor-version":[{"id":4512,"href":"https:\/\/thorenbook.com\/ja\/wp-json\/wp\/v2\/posts\/4510\/revisions\/4512"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/thorenbook.com\/ja\/wp-json\/wp\/v2\/media\/4511"}],"wp:attachment":[{"href":"https:\/\/thorenbook.com\/ja\/wp-json\/wp\/v2\/media?parent=4510"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/thorenbook.com\/ja\/wp-json\/wp\/v2\/categories?post=4510"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/thorenbook.com\/ja\/wp-json\/wp\/v2\/tags?post=4510"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}