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The minnow security model is bad at protecting one fish, it's good at protecting 10000. What would you say is an advantage unique to SMS that would be lost if
by ImAnAmateur 3y ago
The minnow security model is bad at protecting one fish, it's good at protecting 10000.
What would you say is an advantage unique to SMS that would be lost if text messages were switched to another model? I'm asking sincerely. There aren't many people arguing in favor of SMS here, so you seem like the right person to ask.
- patmcc 3y agoIt's pretty simple - there are people who don't have smart phones, plus people who couldn't manage to install/use a TOTP app. Something like ~10% of users probably fit in that category. So either you offer them no protection (if 2FA is optional), no use of the service (if 2FA is mandatory), or ok-but-not-great protection (if you allow SMS). (In reality, some users don't even have SMS (no cell phone) - so automated voice calls can be offered too. Those without any phone at all...will not be considered as valid customers, in most cases.)