The Intercept has today published 200-page documents revealing details about Harris Corp's Stingray surveillance device, which has been one of the closely guarded secrets in law enforcement for more than 15 years. The firm, in collaboration with police clients across the U.S. have "fought" to keep information about the mobile phone-monitoring boxes from the public against which they are used. The publication reports that the surveillance equipment carries a price tag in the "low six figures." From the report:


The San Bernardino Sheriff's Department alone has snooped via Stingray, sans warrant, over 300 times. Richard Tynan, a technologist with Privacy International, told The Intercept that the "manuals released today offer the most up-to-date view on the operation of" Stingrays and similar cellular surveillance devices, with powerful capabilities that threaten civil liberties, communications infrastructure, and potentially national security. He noted that the documents show the "Stingray II" device can impersonate four cellular communications towers at once, monitoring up to four cellular provider networks simultaneously, and with an add-on can operate on so-called 2G, 3G, and 4G networks simultaneously.