Here's an experience some of us have had. The phone rings. You pick it up and say "Hello. Hello. Helloooo." But nobody answers.
It turns out there could be someone on the other end of the line: an automated computer system that's calling your number — and tens of thousands of others — to build a list of humans to target for theft.
Build A List
Vijay Balasubramaniyan, CEO of Pindrop Security, a company in Atlanta that detects phone fraud, says that in any number of ways, the criminal ring gets your 10 digits and loads them into an automated system.