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Re:CallJoy – A cloud-based phone agent for small businesses by reaperducer on Wednesday May 01, 2019 @04:24PM (#19801250)
Bank of America seems to do this somewhat.

If I call from the phone that's connected to my Bank of America account, I can access my account with just a four-digit number. If I call from another phone, I have to go through the full user verification.

Re:CallJoy – A cloud-based phone agent for small businesses by mcny on Thursday May 02, 2019 @07:20AM (#19806687)
Can it tell the difference between calling from your phone as opposed to calling from your Amazon Alexa device if you have one? I mean how does it handle spoofing?