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SMS OTP Security (SOS)
2022
Proceedings of the 2022 ACM on Asia Conference on Computer and Communications Security
SMS-based two-factor authentication (2FA) is the most widely deployed 2FA mechanism, despite the fact that SMS messages are known to be vulnerable to rerouting attacks, and despite the availability of alternatives that may be more secure. This is for two reasons. First, it is very effective in practice, as evidenced by reports from Google and Microsoft. Second, users prefer SMS over alternatives, because text messaging is already part of their daily communication. Accepting this practical
doi:10.1145/3488932.3497756
fatcat:vzky4kp2s5fhjetgybrf2eevzm