Open-source tool 'Rayhunter' helps users detect Stingray attacks

The Electronic Frontier Foundation (EFF) has released a free, open-source tool named Rayhunter that is designed to detect cell-site simulators (CSS), also known as IMSI catchers or Stingrays. Stingray devices mimic legitimate cell towers to trick phones into connecting, allowing them to capture sensitive data, accurately geolocate users, and potentially intercept communications. With the release of the Rayhunter, EFF seeks to give users the power to detect these instances, allowing them to protect themselves and also help draw a clearer picture of the exact deployment scale of Stingrays. How Rayhunter works Rayhunter is an open-source tool designed to detect Stingrays by capturing control traffic (signaling data) between the mobile hotspot and the cell tower it is connected to, but without monitoring user activity. "Rayhunter works by intercepting, storing, and analyzing the control traffic (but not user traffic, such as web requests) between the mobile hotspot Rayhunter runs on a ... Read full article.