this post was submitted on 14 Oct 2025
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Sure you can have a unique identifier. That’s not the issue. The issue is that anyone can contact you via your phone number! This is not a problem with chat apps where people need permission to add you to their contact list. Why not have a system like that?
Same goes for credit cards. They should need to ask for permission to charge your credit card. Merely knowing your credit card info should not be enough.
But then you just get spammed with requests for connection. Just like spam email, the call coming through wouldn't be the point anymore it would be the connection request.
For CCs 3DS does exactly this, though not implemented everywhere.