Two factors of 2FA means any two of what you know, what you have, or what you are. The idea is that one factor is not enough, because a password can be compromi

Two factors of 2FA means any two of what you know, what you have, or what you are. The idea is that one factor is not enough, because a password can be compromised and then you are fucked. Somebody has successfully compromised my GitHub password in the past 2FA prevented them from gaining access even with my password.