From protesters to civilians, everyone is being surveilled. Today, we speak with EFF's Cooper Quintin about IMSI catchers, or stingrays, which mimic cell towers and are used by law enforcement to track phones. 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. Find 404 Med