Electronic Frontier Foundation on Nostr: Cell-site simulators (CSS, also known as Stingrays or IMSI catchers) are devices that ...

Cell-site simulators (CSS, also known as Stingrays or IMSI catchers) are devices that masquerade as legitimate cell-phone towers, tricking phones within a certain radius into connecting to the device rather than a tower. Our new tool, Rayhunter, can help you find them. https://www.eff.org/deeplinks/2025/03/meet-rayhunter-new-open-source-tool-eff-detect-cellular-spying