New Project Aims to Detect When Police are Using a Stingray
Mar 8, 2025, 4:18 PM by Rich Brome @rbrome.bsky.social

The Electronic Frontier Foundation (EFF) has released a new software tool that it hopes can alert people (such as protesters) when someone (such as police) may be operating an IMSI catcher (commonly known by the brand name Stingray) nearby. An IMSI catcher pretends to be a cell phone base station (tower) and records the unique identifiers of phones nearby that automatically attempt to connect to it. This new tool from the EFF — called Rayhunter — is designed to run on a specific Orbic Speed mobile hotspot device that can be found used online for as little as $10. The interface for using the software is web-based, and needs to be accessed from a different device, either via Wi-Fi or USB.
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