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> What is the "secret stored on device" when SMS is used for 2FA? IMEI number?
by ForHackernews 4y ago
> What is the "secret stored on device" when SMS is used for 2FA?
IMEI number?
- hbn 4y agoWhen you request an SMS 2FA code, they're blindly sending an auth code to your phone number over SMS, that's all they know. That number could be registered to any SIM card which could be in any device. Someone could have socially engineered a rep at your carrier to have that number transferred to their device, which is a real thing that happens.
- elwebmaster 4y agoAnd the solution to that is? Disable SMS/phone number as 2FA? No, drop 2FA altogether for a more secure password...nonsense.