Help:Two-factor authentication: Difference between revisions

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make emergency token reference into a numbered step
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[[File:Enroll-Step3.png|thumb|Example of emergency tokens|right]]
When you set up 2FA, you'll be given a number of emergency tokens. You can use one of these if you can't use your smartphone (eg: if it gets broken, stolen or sold). ''You only get shown these tokens when you sign up and never again'', so make a copy of them by selecting/pasting them from your browser and storing them offline (paper printout or memory stick) in a safe place. If you don't keep these tokens and also have a problem using your authentication device, you '''will be locked out of your account'''!
:These* Each token can only be used one time - ever each- and it takes two of them to turn off 2FA (the first to log on without 2FA, and the second to shut off 2FA after logging in).
* You still need to follow [[Wikipedia:SECURITY|good security practices]]. Don't use your name, date of birth or anything obvious as a password that can be guessed in a simple [[dictionary attack]], don't write your password down in a place anyone else can see it, and consider whether or not it's a good idea to log into public terminals including schools, libraries and airports.