Joseph speaks to Cooper Quintin, a security researcher and senior public interest technologist with the Electronic Frontier Foundation (EFF). Quintin is one of the people behind Rayhunter, an easy to install tool that can detect nearby IMSI-catchers. This tech, sometimes known as Stingrays, poses as a fake cellphone tower to track a phone’s location, intercept calls and texts, and can sometimes even deliver malware.

Rayhunter GitHub: https://github.com/EFForg/rayhunter

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