{"id":443,"date":"2026-10-26T13:42:51","date_gmt":"2026-10-26T13:42:51","guid":{"rendered":"http:\/\/localhost:8080\/glossary\/two-factor-authentication\/"},"modified":"2026-10-26T13:42:51","modified_gmt":"2026-10-26T13:42:51","slug":"two-factor-authentication","status":"publish","type":"gl_glossary","link":"https:\/\/landing-geelark.huy.lat\/vi\/glossary\/two-factor-authentication\/","title":{"rendered":"Two-factor authentication (2FA)"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Two-factor authentication (2FA) adds a second step to logging in. After the password, you also prove you have something else, usually a code from an authenticator app, a text message or a security key.<\/p><h2 class=\"wp-block-heading\">Common second factors<\/h2><ul class=\"wp-block-list\"><li><strong>Authenticator apps<\/strong> that show a code that changes every 30 seconds.<\/li><li><strong>SMS codes<\/strong> sent to a phone number.<\/li><li><strong>Security keys<\/strong> that you plug in or tap.<\/li><\/ul><h2 class=\"wp-block-heading\">2FA for team accounts<\/h2><p class=\"wp-block-paragraph\">Turn on 2FA for every account a team manages and make sure codes go to a device the team controls, not to one person&#8217;s private phone. Store backup codes somewhere safe, so losing one device does not lock you out.<\/p><h2 class=\"wp-block-heading\">Related terms<\/h2><ul class=\"wp-block-list gl-related-terms\"><li><a href=\"\/vi\/glossary\/cloud-phone\/\">\u0110i\u1ec7n tho\u1ea1i \u0111\u00e1m m\u00e2y<\/a><\/li><li><a href=\"\/vi\/glossary\/device-fingerprint\/\">Device fingerprint<\/a><\/li><li><a href=\"\/vi\/glossary\/proxy-server\/\">Proxy<\/a><\/li><\/ul>","protected":false},"excerpt":{"rendered":"<p>A login check that asks for a second proof, such as a code, as well as the password.<\/p>","protected":false},"template":"","meta":{"_geelark_seo_title":"Two-factor authentication (2FA): definition and meaning","_geelark_seo_description":"A login check that asks for a second proof, such as a code, as well as the password."},"class_list":["post-443","gl_glossary","type-gl_glossary","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/landing-geelark.huy.lat\/vi\/wp-json\/wp\/v2\/gl_glossary\/443","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/landing-geelark.huy.lat\/vi\/wp-json\/wp\/v2\/gl_glossary"}],"about":[{"href":"https:\/\/landing-geelark.huy.lat\/vi\/wp-json\/wp\/v2\/types\/gl_glossary"}],"wp:attachment":[{"href":"https:\/\/landing-geelark.huy.lat\/vi\/wp-json\/wp\/v2\/media?parent=443"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}