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@FinchHaven @Fascinatorfun

No, the 2FA app has no knowledge of whether you've used it or not. It just passively displays codes related to a particular timestamp and encryption key. It's essentially an elaborate clock.

If you open the 2FA app, its codes will keep changing as the clock ticks, regardless of whether you've used them.

SMS on the other hand DOES give a trail every time it is used. It is also insecure and much easier for hackers to spy on.

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@FinchHaven @Fascinatorfun

The app doesn't need your phone number either. I use a 2FA app that collects no data at all, you just enter a code to begin with and it will then spit out the correct codes later on when it is needed.

SMS does require your phone number though, which is another potential security weakness.

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