KnowraMulti-factor authenticationLinked fromLinked fromThe 6 pages that link to Multi-factor authentication, each with the reason it gives.All 6Broader topic 1Related 2Compared with 3ImpersonationCompared with: A second proof of identity can block access even when an impersonator knows a password.PhishingCompared with: It can limit account takeovers when phishing succeeds in stealing a password.Brute-force attackCompared with: A guessed password alone may not grant access when another factor is required.