@Edent Years ago, someone claiming to be Sprint fraud protection called me on my new Sprint phone wanting to verify some things. They asked for the first 5 digits of my SSN. They said they would disconnect my phone if I didn't verify the info. Suspicious, I asked I could call them back via their publicly listed phone number to handle the verification, and they said no.

I told them I thought they were scammers. It was obvious. They failed every test.

My phone was then disconnected.