4 ms·

Because you can't trust SMS-based two-factor authentication. http://en.wikipedia.org/wiki/Multi-factor_authentication#SMS_one-time_password http://en.wikipedia

• tedunangst 12y ago
  How does Google Authenticator prevent malware on my phone from approving a login?
  • c22 12y ago
    That's outside the scope of the tool. You're supposed to prevent malware from compromising your phone. At the very least this scheme requires an attacker to implant malware on your phone as opposed to just monitoring/intercepting communications to and from it.