Revision as of 02:00, 27 April 2019 edit 184.160.209.174 (talk) No edit summary Tags: Visual edit Mobile edit Mobile web edit ← Previous edit		Revision as of 05:00, 17 May 2019 edit undo Vikom (talk \| contribs) Extended confirmed users 601 edits ce) "Should ... be stolen" -> "If ... is stolen" ; Please, don't use that ARCHAIC, and illogical construction. Use plain English - readability matters Next edit →
Line 1: A '''transaction authentication number''' ('''TAN''') is used by some [[online banking]] services as a form of ''single use'' [[one-time password]]s (OTPs) to authorize [[financial transaction]]s. TANs are a second layer of security above and beyond the traditional single-password [[Authentication protocol\|authentication]]. TANs provide additional security because they act as a form of ''two-factor authentication'' (2FA). ~~Should~~If the physical document or token containing the TANs beis stolen, it will be of little use without the password; conversely, if the login data are obtained, no transactions can be performed without a valid TAN. ==Classic TAN==

Transaction authentication number: Difference between revisions