Does that mean that other apps like signal for example have back doors?

Do criminals have a knowledge of exploits in the recommended messaging apps?

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[–] 7 points 2 years ago (1 child)

I thought I heard so, too, but when I tried to research it, all that came up is that you can publicly hide your phone number and instead give people your username, but you still need the phone number for sign-up. I really do not know, though, if search engines are failing me again...

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  • [–] 6 points 2 years ago

    That's correct, you still need a phone number for sign up. between contacts you can use usernames.

    So Signal has your phone number, your contacts only have it if you use your number instead ofgiving them a username.

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