Comment by lxgr
7 days ago
The same thing exists for phone numbers. About 90% of my calls with US banks go like this:
"Ok, first, to verify you, what's your phone number?" (oh no, it's one of those, because why do they need to ask...) "<my phone number>" "Ok, you'll receive a te— oh. Oh no. This is not a real phone number. What's your REAL phone number?"
Is that because it's VOIP or a landline?
VoIP, in my case. Probably much more secure than the average big three carrier plan from a SIM swapping perspective, but try convincing banks or their “security” service providers.