NPR

'SIM-Swap' Scams Expose Risks Of Using Phones For Secondary I.D.

Security experts say our growing reliance on cell phones to help confirm our identity online is motivating "SIM-swap" scams to highjack our numbers.
After regaining control of his number, Gregg Bennett says he received this automatic text message from the AT&T store in Boston that he believes was used by the SIM-swappers.

Gregg Bennett is an entrepreneur in Bellevue, Wash., and he knows a bit about tech. So when his smart phone started acting funny one day last April, he got a bad feeling.

"I was having trouble getting into my email account. And all of a sudden my phone went dead," he says. "I look at my phone and there's no signal. And I go, 'Oh no, something's happened here.'"

It was a SIM-swap — a "social engineering" trick fraudsters use to take control of somebody else's phone number. There.

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