Twitter announced Wednesday that it has started supporting two-factor authentication, joining a growing list of major Web services that offer the more secure log-in method.
Two-factor authentication, or 2FA as it's commonly abbreviated, adds an extra step to your basic log-in procedure. Without 2FA, you enter in your username and password, and then you're done. The password is your single factor of authentication. The second factor makes your account more secure, in theory.
"Twitter made the decision to use SMS [to deliver its second factor] because it makes sense from their position," said Jon Oberheide, chief … Read more