Quote from: Jupiter2030 on May 21, 2019, 02:49:22 PM

So I noticed that many Bitcoin sites utilize 2 Factor Verification for new registrations. This requires you to provide your cell # and they send you a code which you type in to verify.

I'm always hesitant to provide my cell # because I want to maintain my anonymity as much as possible. Does anyone know if the phone # data is stored for 2 Factor Verification? Of course I know it is for 2 Factor Authentication but I'm specifically referring to 'Verification".

So you are afraid to someone is going to send you spam SMS texts or call you?
I've been using 2 factor authentication ever since I started using crypto wallets and exchange platforms and I have never received any spam SMS or any phone call from an unknown number.
Trust me,your phone number isn't such a sensitive and valuable private information.