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Phone numbers can be remapped to new sim cards: https://nakedsecurity.sophos.com/2016/08/12/sms-or-authenticator-app-which-is-better-for-two-factor-authenticat
by cripblip 9y ago
Phone numbers can be remapped to new sim cards:
https://nakedsecurity.sophos.com/2016/08/12/sms-or-authenticator-app-which-is-better-for-two-factor-authentication/ https://nakedsecurity.sophos.com/2016/08/12/sms-or-authentic...
- throwaway613834 9y agoI'm confused, how is this relevant? I was asking about app-based 2FA.
- cripblip 9y agoThat would require physical access to my phone, and access to the content on it, vs convincing a telephone company to transfer my cell number to a different sim. I'm less concerned about the former. I may be misunderstanding your question?
- throwaway613834 9y agoI think you inserted SMS into this where was none? I was never suggesting he use SMS over this.
- asidiali 9y agoHe said he’s currently using SMS so it’s natural to back-track your question to SMS based 2FA. The reason he wants to use app-based could very well be the one stated above - because the [main] alternative is easy to hack remotely, and that required physical proximity is a feature in this case.
- throwaway613834 9y agoHuh, I see. I didn't get the impression he's using SMS. I thought he was just describing the feature Chase offered, not that he was actually using it. I'm not asking about SMS 2FA at all, I'm asking what app-based 2FA itself would protect against. It seems like an extra step that wouldn't really help anything.