The Secret SIMs Used By Criminals to Spoof Any Number

[InfoSec News <alerts () infosecnews org>]

https://www.vice.com/en_us/article/n7w9pw/russian-sims-encrypted

By Joseph Cox
Vice.com
August 12, 2020

The unsolicited call came from France. Or at least that's what my phone 
said. When I picked up, a man asked if I worked with the National Crime 
Agency, the UK's version of the FBI. When I explained, no, as a journalist 
I don't give information to the police, he said why he had contacted me.

"There are these special SIM cards out there," he said, referring to the 
small piece of hardware that slips inside a cell phone. "I'm actually 
ringing from one now," he added, before later explaining he runs an 
underground site that sells these cards.

This SIM card, the caller said, allowed him to spoof any phone number he 
wanted. Want to look like you're calling from a bank in order to scam a 
target? Easy. Want to change it to a random series of digits so that the 
recipient's phone won't record your real number? That just takes a few 
seconds to set up, according to tutorials of how to use the cards 
available online.

[...]



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