I'm trying to secure all my accounts, changing passwords, ... so I read many threads about password security, 2FA and I remembered these things : passphrase are better, must be different for each services and 2FA must be turn on but never use text message or phone call.

So I have two questions:

  • Is it safe to give a recovery phone number or recovery email address to my Gmail account?
  • What is the best app for 2FA? And what happens if I lost my phone?
  • When you enable 2FA, save that seed phrase or key in a keepass db. That way you could reenable 2fa if you lost phone. – DavChana Mar 23 '19 at 6:16

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