Editing Password (section)

===Multi-factor authentication===
{{Main|Multi-factor authentication}}
Multi-factor authentication schemes combine passwords (as "knowledge factors") with one or more other means of authentication, to make authentication more secure and less vulnerable to compromised passwords. For example, a simple two-factor login might send a text message, e-mail, automated phone call, or similar alert whenever a login attempt is made, possibly supplying a code that must be entered in addition to a password.<ref>[https://www.yahoo.com/tech/two-factor-authentication-security-000000679.html Two-factor authentication] {{webarchive|url=https://web.archive.org/web/20160618142745/https://www.yahoo.com/tech/two-factor-authentication-security-000000679.html |date=18 June 2016 }}</ref> More sophisticated factors include such things as hardware tokens and biometric security.