the 2/3 rule for multi-factor authentication
multi-factor authentication When you sign into an online service, you’re required to provide a username to identify who you are and a password to prove that you are who you say you are. Anyone can claim that they’re romanhn on GitHub, but only I know my GitHub password. But if a hacker breaches GitHub’s servers and publishes a list of everyone’s password,1 knowing my password is no longer proof of anything....