[piotrSikora]

From https://github.com/authy/authy-ssh/blob/master/authy-ssh#L11...:

    Default action when api.authy.com cannot be contacted:
    
      1. Disable two factor authentication until api.authy.com is back
      2. Don't allow logins until api.authy.com is back

[ikonst]

What?! This is an online method? Why don't people just use Google Authenticator? It's totally offline, on both ends.