{"id":14762,"date":"2026-01-19T03:41:43","date_gmt":"2026-01-19T00:41:43","guid":{"rendered":"https:\/\/smspva.com\/blog\/cach-tao-so-ngau-nhien-cho-thu-nghiem-xac-thuc-hai-yeu-to-o-uc-vi\/"},"modified":"2026-01-19T03:41:43","modified_gmt":"2026-01-19T00:41:43","slug":"cach-tao-so-ngau-nhien-cho-thu-nghiem-xac-thuc-hai-yeu-to-o-uc-vi","status":"publish","type":"post","link":"https:\/\/smspva.com\/blog\/vi\/cach-tao-so-ngau-nhien-cho-thu-nghiem-xac-thuc-hai-yeu-to-o-uc-vi\/","title":{"rendered":"Cach tao so ngau nhien cho thu nghiem xac thuc hai yeu to o uc"},"content":{"rendered":"\n<style> :root { --page-max-width: 1100px; font-family: Arial, sans-serif; } body { margin: 0; padding: 0; color: #1a1a1a; } .container { max-width: var(--page-max-width); padding: 20px 16px; margin: 0 auto; } header { padding: 10px 0 20px; border-bottom: 1px solid #eee; } .kicker { font-size: 12px; color: #666; margin-bottom: 8px; } .badge { display: inline-block; padding: 4px 8px; background: #f0f4f8; border-radius: 6px; margin-right: 6px; font-weight: 600; } h1 { font-size: 28px; margin: 6px 0 12px; } p { line-height: 1.65; font-size: 16px; color: #333; } ul, ol { margin: 10px 0 10px 28px; } table { width: 100%; border-collapse: collapse; margin: 16px 0; } th, td { border: 1px solid #ddd; padding: 8px; text-align: left; } .btn { display: inline-block; padding: 12px 18px; border-radius: 6px; text-decoration: none; margin: 6px 6px 0 0; } .btn-primary { background: #1a73e8; color: #fff; } .btn-secondary { background: #e8f0fe; color: #1a73e8; border: 1px solid #1a73e8; } .cta { margin: 14px 0 28px; } blockquote { border-left: 4px solid #ddd; padding-left: 12px; color: #555; } .tl;dr { background: #f7f9fb; border-left: 4px solid #1a73e8; padding: 12px 14px; margin: 10px 0 20px; } @media (max-width: 800px) { .container { padding: 0 12px; } h1 { font-size: 24px; } } <\/style><article class='container' itemscope itemtype='https:\/\/schema.org\/TechArticle'> <header><img decoding=\"async\" src=\"\/storage\/articles\/generate-random-numbers-two-factor-tests-australia.png\" alt=\"C\u00e1ch t\u1ea1o s\u1ed1 ng\u1eabu nhi\u00ean cho th\u1eed nghi\u1ec7m x\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1 \u1edf \u00dac \u2013 M\u00e3 OTP tr\u00ean \u0111i\u1ec7n tho\u1ea1i c\u00f3 qu\u1ed1c k\u1ef3 \u00dac\"> <div class='kicker'>\u00dac \u2022 S\u1ed1 ng\u1eabu nhi\u00ean \u2022 OTP v\u00e0 X\u00e1c th\u1ef1c<\/div> <h1>Cach tao so ngau nhien cho thu nghiem xac thuc hai yeu to o uc<\/h1> <\/header> <p>C\u00e1ch t\u1ea1o s\u1ed1 ng\u1eabu nhi\u00ean cho th\u1eed nghi\u1ec7m x\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1 \u1edf \u00dac l\u00e0 m\u1ed9t k\u1ef9 n\u0103ng th\u1ef1c t\u1ebf cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 \u0111\u1ed9i ng\u0169 QA. Vi\u1ec7c s\u1eed d\u1ee5ng c\u00e1c s\u1ed1 t\u1ea1m th\u1eddi, kh\u00f4ng th\u1ec3 ph\u00e1t l\u1ea1i gi\u00fap ki\u1ec3m tra lu\u1ed3ng OTP m\u00e0 kh\u00f4ng ti\u1ebft l\u1ed9 d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng th\u1ef1c t\u1ebf. H\u01b0\u1edbng d\u1eabn n\u00e0y tr\u00ecnh b\u00e0y c\u00e1c ph\u01b0\u01a1ng ph\u00e1p an to\u00e0n v\u00e0 c\u00e1ch t\u00edch h\u1ee3p ngu\u1ed3n s\u1ed1 ng\u1eabu nhi\u00ean c\u1ee7a SMSPVA cho th\u1eed nghi\u1ec7m \u1edf \u00dac.<\/p> <div class='tl;dr'><strong>TL;DR:<\/strong> S\u1eed d\u1ee5ng c\u00e1c c\u00f4ng c\u1ee5 s\u1ed1 ng\u1eabu nhi\u00ean d\u00e0nh ri\u00eang \u0111\u1ec3 m\u00f4 ph\u1ecfng vi\u1ec7c g\u1eedi OTP, tu\u00e2n th\u1ee7 c\u00e1c nguy\u00ean t\u1eafc an to\u00e0n v\u00e0 ph\u00e1p l\u00fd, v\u00e0 x\u00e1c th\u1ef1c t\u00e0i kho\u1ea3n th\u1eed nghi\u1ec7m v\u1edbi c\u00e1c s\u1ed1 \u1edf \u00dac t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady.<\/div> <section> <h2>T\u1ea1i sao n\u00ean d\u00f9ng s\u1ed1 ng\u1eabu nhi\u00ean cho c\u00e1c th\u1eed nghi\u1ec7m x\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1?<\/h2> <p>X\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1 (2FA) d\u1ef1a tr\u00ean c\u00e1c m\u00e3 t\u1ea1m th\u1eddi \u0111\u01b0\u1ee3c g\u1eedi qua SMS ho\u1eb7c \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1edfi c\u00e1c \u1ee9ng d\u1ee5ng. \u0110\u1ec3 th\u1eed nghi\u1ec7m, vi\u1ec7c s\u1eed d\u1ee5ng s\u1ed1 ng\u1eabu nhi\u00ean s\u1ebd tr\u00e1nh g\u1eedi m\u00e3 th\u1ef1c cho kh\u00e1ch h\u00e0ng v\u00e0 cho ph\u00e9p \u0111\u1ed9i ng\u0169 c\u1ee7a b\u1ea1n t\u00e1i t\u1ea1o c\u00e1c ch\u1ebf \u0111\u1ed9 l\u1ed7i, \u0111\u1ed9 tr\u1ec5 v\u00e0 c\u00e1c v\u1ea5n \u0111\u1ec1 g\u1eedi \u0111i m\u00e0 kh\u00f4ng g\u1eb7p r\u1ee7i ro. \u1ede \u00dac, b\u1ea1n c\u00f3 th\u1ec3 t\u1eadn d\u1ee5ng c\u00e1c d\u1ecbch v\u1ee5 nh\u01b0 t\u1ea1i <a href='https:\/\/smspva.com\/random-number\/country\/australia'>d\u1ecbch v\u1ee5 s\u1ed1 ng\u1eabu nhi\u00ean \u1edf \u00dac<\/a> \u0111\u1ec3 m\u00f4 ph\u1ecfng c\u00e1c m\u00e3 v\u00e0 x\u00e1c minh lu\u1ed3ng tr\u00ean c\u00e1c nh\u00e0 m\u1ea1ng v\u00e0 m\u1ea1ng kh\u00e1c nhau.<\/p> <p>Khi th\u1eed nghi\u1ec7m, b\u1ea1n c\u0169ng n\u00ean xem x\u00e9t c\u00e1c nguy\u00ean t\u1eafc b\u1ea3o m\u1eadt t\u1ed1i \u01b0u: s\u1eed d\u1ee5ng m\u00e3 c\u00f3 hi\u1ec7u l\u1ef1c theo th\u1eddi gian, m\u00f4i tr\u01b0\u1eddng sandbox v\u00e0 gi\u00e1m s\u00e1t c\u00e1c m\u1eabu y\u00eau c\u1ea7u b\u1ea5t th\u01b0\u1eddng. \u0110\u1ec3 c\u00f3 b\u1ed1i c\u1ea3nh r\u1ed9ng h\u01a1n v\u1ec1 2FA, b\u1ea1n c\u00f3 th\u1ec3 tham kh\u1ea3o <a href='https:\/\/en.wikipedia.org\/wiki\/Two-factor_authentication' target='_blank' rel=\"noopener\">X\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1 tr\u00ean Wikipedia<\/a> v\u00e0 h\u01b0\u1edbng d\u1eabn c\u1ee7a Google v\u1ec1 X\u00e1c th\u1ef1c \u1edf B\u01b0\u1edbc 2 <a href='https:\/\/support.google.com\/accounts\/answer\/1066447' target='_blank' rel=\"noopener\">B\u1ea3o m\u1eadt Google<\/a>.<\/p> <\/section> <section> <h2>C\u00e1ch sinh s\u1ed1 ng\u1eabu nhi\u00ean \u0111\u1ec3 th\u1eed nghi\u1ec7m (How to &#8230;)<\/h2> <ol> <li>Ch\u1ecdn m\u1ed9t ngu\u1ed3n s\u1ed1 th\u1eed nghi\u1ec7m \u0111\u00e1ng tin c\u1eady. \u0110\u1ed1i v\u1edbi \u00dac, b\u1eaft \u0111\u1ea7u v\u1edbi d\u1ecbch v\u1ee5 s\u1ed1 ng\u1eabu nhi\u00ean ch\u00ednh th\u1ee9c t\u1ea1i <a href='https:\/\/smspva.com\/random-number\/country\/australia'>d\u1ecbch v\u1ee5 s\u1ed1 ng\u1eabu nhi\u00ean \u1edf \u00dac<\/a>.<\/li> <li>Hi\u1ec3u \u0111\u1ecbnh d\u1ea1ng m\u00e3 v\u00e0 k\u00eanh ph\u00e2n ph\u1ed1i (SMS hay tho\u1ea1i) \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong lu\u1ed3ng 2FA c\u1ee7a \u1ee9ng d\u1ee5ng.<\/li> <li>C\u1ea5u h\u00ecnh m\u00f4i tr\u01b0\u1eddng th\u1eed nghi\u1ec7m \u0111\u1ec3 ch\u1ea5p nh\u1eadn m\u00e3 m\u1ed9t l\u1ea7n t\u1eeb h\u1ed3 s\u1ed1 th\u1eed nghi\u1ec7m m\u00e0 kh\u00f4ng ti\u1ebft l\u1ed9 d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng.<\/li> <li>Ghi nh\u1eadn k\u1ebft qu\u1ea3 g\u1eedi \u0111i, bao g\u1ed3m th\u1eddi gian, nh\u00e0 m\u1ea1ng v\u00e0 tr\u1ea1ng th\u00e1i th\u00e0nh c\u00f4ng\/th\u1ea5t b\u1ea1i, \u0111\u1ec3 theo d\u00f5i \u0111\u1ed9 tin c\u1eady.<\/li> <li>X\u00e1c th\u1ef1c c\u00e1c tr\u01b0\u1eddng h\u1ee3p bi\u00ean: m\u00e3 h\u1ebft h\u1ea1n, gi\u1edbi h\u1ea1n t\u1ea7n su\u1ea5t v\u00e0 g\u1eedi l\u1ea1i \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o x\u1eed l\u00fd m\u1ea1nh m\u1ebd.<\/li> <li>Ghi l\u1ea1i th\u1ee7 t\u1ee5c th\u1eed nghi\u1ec7m v\u00e0 \u0111\u1ea3m b\u1ea3o tu\u00e2n th\u1ee7 lu\u1eadt ph\u00e1p \u0111\u1ecba ph\u01b0\u01a1ng v\u00e0 ch\u00ednh s\u00e1ch n\u1ec1n t\u1ea3ng.<\/li> <\/ol> <\/section> <section> <h2>B\u01b0\u1edbc\u2013ti\u1ebfn h\u00e0nh: tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng v\u00e0 th\u1ef1c h\u00e0nh t\u1ed1t nh\u1ea5t<\/h2> <p>D\u01b0\u1edbi \u0111\u00e2y l\u00e0 m\u1ed9t quy tr\u00ecnh l\u00e0m vi\u1ec7c th\u1ef1c t\u1ebf b\u1ea1n c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ec9nh cho m\u00f4i tr\u01b0\u1eddng \u1edf \u00dac:<\/p> <ol> <li>X\u00e1c \u0111\u1ecbnh m\u1ee5c ti\u00eau th\u1eed nghi\u1ec7m: ph\u1ee7 s\u00f3ng c\u00e1c \u0111\u01b0\u1eddng d\u1eabn th\u00e0nh c\u00f4ng, th\u1ea5t b\u1ea1i v\u00e0 \u0111\u1ed9 tr\u1ec5.<\/li> <li>Ch\u1ecdn m\u1ed9t h\u1ed3 s\u1ed1 th\u1eed nghi\u1ec7m \u1edf \u00dac v\u00e0 t\u00edch h\u1ee3p n\u00f3 v\u1edbi m\u00f4i tr\u01b0\u1eddng QA c\u1ee7a b\u1ea1n.<\/li> <li>Ch\u1ea1y c\u00e1c b\u00e0i ki\u1ec3m tra t\u1ef1 \u0111\u1ed9ng y\u00eau c\u1ea7u m\u1ed9t m\u00e3, sau \u0111\u00f3 m\u00f4 ph\u1ecfng ng\u01b0\u1eddi d\u00f9ng nh\u1eadp v\u00e0 x\u00e1c th\u1ef1c trong \u1ee9ng d\u1ee5ng c\u1ee7a b\u1ea1n.<\/li> <li>Ghi nh\u1eadn k\u1ebft qu\u1ea3 v\u00e0 so s\u00e1nh v\u1edbi k\u1ebft qu\u1ea3 mong \u0111\u1ee3i \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c kho\u1ea3ng tr\u1ed1ng.<\/li> <li>XOay v\u00f2ng c\u00e1c s\u1ed1 th\u1eed nghi\u1ec7m \u0111\u1ecbnh k\u1ef3 \u0111\u1ec3 tr\u00e1nh l\u1ea1m d\u1ee5ng b\u1ea5t k\u1ef3 h\u1ed3 s\u1ed1 n\u00e0o.<\/li> <\/ol> <\/section> <section> <h2>B\u1ea3ng: kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 ph\u1ed5 bi\u1ebfn<\/h2> <table> <tr><th>V\u1ea5n \u0111\u1ec1<\/th><th>Nguy\u00ean nh\u00e2n c\u00f3 th\u1ec3<\/th><th>Gi\u1ea3i ph\u00e1p<\/th><\/tr> <tr><td>Kh\u00f4ng nh\u1eadn \u0111\u01b0\u1ee3c m\u00e3<\/td><td>Tr\u00ec ho\u00e3n ho\u1eb7c ch\u1eb7n b\u1edfi nh\u00e0 m\u1ea1ng<\/td><td>Th\u1eed l\u1ea1i sau v\u00e0i gi\u00e2y; x\u00e1c minh ID ng\u01b0\u1eddi g\u1eedi v\u00e0 t\u00ednh h\u1ee3p l\u1ec7 c\u1ee7a s\u1ed1 \u0111i\u1ec7n tho\u1ea1i<\/td><\/tr> <tr><td>M\u00e3 h\u1ebft h\u1ea1n qu\u00e1 nhanh<\/td><td>\u0110\u1ed9 l\u1ec7ch \u0111\u1ed3ng h\u1ed3 ho\u1eb7c l\u1ed7i th\u1eddi gian<\/td><td>\u0110\u1ed3ng b\u1ed9 th\u1eddi gian m\u00e1y ch\u1ee7 v\u00e0 s\u1eed d\u1ee5ng m\u00e3 c\u00f3 hi\u1ec7u l\u1ef1c gi\u1edbi h\u1ea1n th\u1eddi gian<\/td><\/tr> <tr><td>Sai qu\u1ed1c gia\/khu v\u1ef1c<\/td><td>Ch\u1ecdn nh\u00f3m s\u1ed1 sai<\/td><td>\u0110\u1ea3m b\u1ea3o m\u00e3 qu\u1ed1c gia v\u00e0 nh\u00f3m s\u1ed1 kh\u1edbp v\u1edbi \u00dac<\/td><\/tr> <tr><td>R\u00f2 r\u1ec9 d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m<\/td><td>S\u1eed d\u1ee5ng s\u1ed1 th\u1eadt cho s\u1ea3n ph\u1ea9m<\/td><td>Ch\u1ec9 s\u1eed d\u1ee5ng c\u00e1c s\u1ed1 th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c c\u1ea5p ri\u00eang<\/td><\/tr> <\/table> <\/section> <section> <h2>S\u1eed d\u1ee5ng an to\u00e0n v\u00e0 h\u1ee3p ph\u00e1p<\/h2> <p>Lu\u00f4n tu\u00e2n th\u1ee7 c\u00e1c quy \u0111\u1ecbnh \u0111\u1ecba ph\u01b0\u01a1ng v\u00e0 ch\u00ednh s\u00e1ch n\u1ec1n t\u1ea3ng khi th\u1eed nghi\u1ec7m c\u00e1c lu\u1ed3ng 2FA. S\u1eed d\u1ee5ng s\u1ed1 th\u1eed nghi\u1ec7m t\u1eeb c\u00e1c nh\u00e0 cung c\u1ea5p \u0111\u00e1ng tin c\u1eady, tr\u00e1nh truy\u1ec1n d\u1eef li\u1ec7u t\u00e0i kho\u1ea3n th\u1eadt v\u00e0 duy tr\u00ec t\u00e0i li\u1ec7u minh b\u1ea1ch cho c\u00e1c cu\u1ed9c ki\u1ec3m to\u00e1n. \u0110\u1ed1i v\u1edbi c\u00e1c c\u00e2n nh\u1eafc ph\u00e1p l\u00fd, tham kh\u1ea3o c\u00e1c h\u01b0\u1edbng d\u1eabn v\u1ec1 quy\u1ec1n ri\u00eang t\u01b0 v\u00e0 x\u1eed l\u00fd d\u1eef li\u1ec7u v\u00e0 tham kh\u1ea3o c\u00e1c ngu\u1ed3n b\u00ean ngo\u00e0i nh\u01b0 th\u1ef1c h\u00e0nh quy\u1ec1n ri\u00eang t\u01b0 t\u1ed1t nh\u1ea5t.<\/p> <\/section> <section> <h2>FAQ<\/h2> <div id='faq'> <div class='faq-item'> <strong>Q: D\u1ecbch v\u1ee5 s\u1ed1 ng\u1eabu nhi\u00ean \u0111\u1ec3 th\u1eed nghi\u1ec7m l\u00e0 g\u00ec?<\/strong> <p>A: N\u00f3 cung c\u1ea5p c\u00e1c m\u00e3 s\u1ed1 d\u00f9ng m\u1ed9t l\u1ea7n \u0111\u1ec3 m\u00f4 ph\u1ecfng vi\u1ec7c g\u1eedi OTP m\u00e0 kh\u00f4ng s\u1eed d\u1ee5ng d\u1eef li\u1ec7u kh\u00e1ch h\u00e0ng th\u1ef1c.<\/p> <\/div> <div class='faq-item'> <strong>Q: C\u00f3 an to\u00e0n khi s\u1eed d\u1ee5ng \u1edf \u00dac kh\u00f4ng?<\/strong> <p>A: C\u00f3, khi b\u1ea1n s\u1eed d\u1ee5ng c\u00e1c h\u1ed3 s\u1ed1 th\u1eed nghi\u1ec7m ri\u00eang v\u00e0 tu\u00e2n th\u1ee7 c\u00e1c nguy\u00ean t\u1eafc b\u1ea3o v\u1ec7 d\u1eef li\u1ec7u.<\/p> <\/div> <div class='faq-item'> <strong>Q: L\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 t\u00edch h\u1ee3p v\u1edbi \u1ee9ng d\u1ee5ng c\u1ee7a t\u00f4i?<\/strong> <p>A: S\u1eed d\u1ee5ng API ho\u1eb7c quy tr\u00ecnh l\u00e0m vi\u1ec7c \u0111\u01b0\u1ee3c nh\u00e0 cung c\u1ea5p \u0111\u1ec1 xu\u1ea5t v\u00e0 \u0111\u1ea3m b\u1ea3o m\u00f4i tr\u01b0\u1eddng QA \u0111\u01b0\u1ee3c c\u00f4 l\u1eadp.<\/p> <\/div> <div class='faq-item'> <strong>Q: T\u00f4i c\u00f3 th\u1ec3 d\u00f9ng nh\u1eefng s\u1ed1 n\u00e0y cho x\u00e1c th\u1ef1c s\u1ea3n ph\u1ea9m kh\u00f4ng?<\/strong> <p>A: Kh\u00f4ng. Ch\u00fang \u0111\u01b0\u1ee3c d\u00e0nh cho th\u1eed nghi\u1ec7m; kh\u00f4ng g\u1eedi th\u1eed nghi\u1ec7m t\u1edbi ng\u01b0\u1eddi d\u00f9ng th\u1ef1c.<\/p> <\/div> <div class='faq-item'> <strong>Q: M\u00e3 th\u1eed nghi\u1ec7m c\u00f3 hi\u1ec7u l\u1ef1c trong bao l\u00e2u?<\/strong> <p>A: Th\u00f4ng th\u01b0\u1eddng v\u00e0i ph\u00fat; kh\u1edbp v\u1edbi c\u1eeda s\u1ed5 hi\u1ec7u l\u1ef1c OTP c\u1ee7a \u1ee9ng d\u1ee5ng.<\/p> <\/div> <div class='faq-item'> <strong>Q: T\u00f4i c\u00f3 th\u1ec3 \u0111\u1ecdc th\u00eam v\u1ec1 2FA \u1edf \u0111\u00e2u?<\/strong> <p>A: Xem trang X\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1 tr\u00ean Wikipedia v\u00e0 H\u01b0\u1edbng d\u1eabn c\u1ee7a Google v\u1ec1 X\u00e1c th\u1ef1c 2 B\u01b0\u1edbc.<\/p> <\/div> <\/div> <\/section> <section class='cta'> <a class='btn btn-primary' href='https:\/\/smspva.com\/random-number\/country\/australia' target='_blank' rel=\"noopener\">Nh\u1eadn s\u1ed1 ng\u1eabu nhi\u00ean \u1edf \u00dac ngay b\u00e2y gi\u1edd<\/a> <a class='btn btn-secondary' href='https:\/\/smspva.com\/service\/random-number\/country\/australia\/virtual-phone-number' target='_blank' rel=\"noopener\">s\u1ed1 \u0111i\u1ec7n tho\u1ea1i \u1ea3o cho s\u1ed1 ng\u1eabu nhi\u00ean \u1edf \u00dac<\/a> <\/section> <section> <h2>Ngu\u1ed3n l\u1ef1c b\u1ed5 sung<\/h2> <p>Khai th\u00e1c trang d\u1ecbch v\u1ee5 \u0111\u1ec3 xem th\u00eam t\u00f9y ch\u1ecdn, ho\u1eb7c xem c\u00e1c ch\u1ee7 \u0111\u1ec1 li\u00ean quan: <a href='https:\/\/smspva.com\/service\/random-number\/country\/australia' target='_blank' rel=\"noopener\">s\u1ed1 ng\u1eabu nhi\u00ean \u1edf \u00dac<\/a> ho\u1eb7c <a href='https:\/\/smspva.com\/service\/random-number' target='_blank' rel=\"noopener\">d\u1ecbch v\u1ee5 s\u1ed1 ng\u1eabu nhi\u00ean<\/a>. B\u1ea1n c\u0169ng c\u00f3 th\u1ec3 \u0111\u1ecdc v\u1ec1 c\u00e1ch tu\u00e2n th\u1ee7 x\u00e1c minh k\u1ef9 thu\u1eadt s\u1ed1 tr\u00ean <a href='https:\/\/www.wikipedia.org' target='_blank' rel=\"noopener\">Wikipedia<\/a>.<\/p> <\/section> <p>Note: \u0110\u1ec3 truy c\u1eadp nhanh, xem trang m\u00f4 ph\u1ecfng ch\u00ednh: s\u1ed1 ng\u1eabu nhi\u00ean \u1edf \u00dac.<\/p> <footer> <p style='font-size:12px; color:#777;'>\u00a9 2026 SMSPVA. T\u1ea5t c\u1ea3 c\u00e1c s\u1ed1 ch\u1ec9 d\u00e0nh cho m\u1ee5c \u0111\u00edch th\u1eed nghi\u1ec7m. Lu\u00f4n tu\u00e2n th\u1ee7 c\u00e1c lu\u1eadt v\u00e0 \u0111i\u1ec1u kho\u1ea3n d\u1ecbch v\u1ee5 \u00e1p d\u1ee5ng.<\/p> <\/footer> <\/article>\n","protected":false},"excerpt":{"rendered":"<p>\u00dac \u2022 S\u1ed1 ng\u1eabu nhi\u00ean \u2022 OTP v\u00e0 X\u00e1c th\u1ef1c Cach tao so ngau nhien cho thu nghiem xac thuc hai yeu to o uc C\u00e1ch t\u1ea1o s\u1ed1 ng\u1eabu nhi\u00ean cho th\u1eed nghi\u1ec7m x\u00e1c th\u1ef1c hai y\u1ebfu t\u1ed1 \u1edf \u00dac l\u00e0 m\u1ed9t k\u1ef9 n\u0103ng th\u1ef1c t\u1ebf cho c\u00e1c nh\u00e0 ph\u00e1t tri\u1ec3n v\u00e0 \u0111\u1ed9i ng\u0169 QA&#8230;.<\/p>\n","protected":false},"author":5,"featured_media":14751,"comment_status":"","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[229],"tags":[],"lang":"vi","translations":{"vi":14762,"en":14750,"es":14753,"zh":14754,"ar":14755,"fr":14756,"de":14757,"tr":14758,"it":14759,"pl":14760,"ja":14763,"pt":14764},"featured":{"id":14751,"url":"https:\/\/smspva.com\/blog\/wp-content\/uploads\/2026\/01\/generate-random-numbers-two-factor-tests-australia.png","alt":"How to generate random numbers for two-factor tests in Australia \u2013 OTP code on phone with Australian flag"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.8 - 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