3 ms·
I'm not talking about SMS. What you need is U2F not 2FA.
by thefounder 7y ago
I'm not talking about SMS. What you need is U2F not 2FA.
- latchkey 7y agoDoing a bit more reading and now I can clarify terminology... 2FA is a general term. U2F is a type of 2FA. The other type, which is what I was referring to, is TOTP (Time-based one time password). You are right that U2F is more secure. The primary security advantage is that there is no longer a shared secret that needs to be stored on each end. But saying 2FA is useless would be like also saying that U2F is useless since 2FA is a general term. That said, in this case, TOTP would have likely prevented anyone from accessing the OP's partners account. Therefore, TOTP is not useless per your original comment.
- thefounder 7y agoCheck this[] starting at 18:55. It explains the issue and the fix for OTP/TOTP. What you need is a u2f device/key/app and web auth. It takes the responsibility to identify if the website is fake or not from you which is really the core issue. The secret is negotiated directly with the u2F device/sec key. https://m.youtube.com/watch?v=kGGMgEfSzMw&time_continue=1271 https://m.youtube.com/watch?v=kGGMgEfSzMw&time_continue=1271