RayHunter: Detect Suspicious Cell Activity #shorts

Our Take

Credit where it's due: STS Technologies LLC is putting a spotlight on RayHunter, the Electronic Frontier Foundation's open-source tool that flags suspicious cellular activity consistent with IMSI catchers and Stingray devices. Cell-site simulators are the invisible cousins of the license plate readers we track every day here — both are dragnet tools that sweep up data on everyone in range, not just suspects, and both tend to arrive in communities with zero public debate.

The catch with this particular video is that it's really a storefront pitch: buy their pre-flashed Orbic RC400L and you've got a 'ready-to-use' Stingray detector. That's fine if you want convenience, but it's worth remembering RayHunter is free and open-source — EFF publishes the code and flashing instructions themselves, so anyone with a compatible device and some patience can build one without paying a markup. Mass surveillance tools keep getting cheaper and easier to deploy quietly; the tools to detect them shouldn't come with an unnecessary price tag.

Whether it's a Stingray sniffing your phone's IMSI or a Flock camera logging your plate on every drive to work, the pattern is the same: infrastructure installed with little oversight, collecting data on people who've done nothing wrong. If you want to see what's already watching your block, check the map, and if you're ready to push back on unaccountable surveillance in your town, our take-action page has next steps.