Sentences with phrase «emulating cell phone towers»

Acting head of Immigrations and Customs Enforcement Thomas Homan told Sen. Ron Wyden the agency does not use cell - site simulators — a type of surveillance gear often referred to as a «Stingray» that can track down a specific mobile device by emulating cell phone towers — to locate undocumented immigrants.

Not exact matches

Cell - site simulators (also known as «IMSI catchers» and «Stingrays») are devices that emulate cell towers in order to gain information from a caller's phone, such as locational informatCell - site simulators (also known as «IMSI catchers» and «Stingrays») are devices that emulate cell towers in order to gain information from a caller's phone, such as locational informatcell towers in order to gain information from a caller's phone, such as locational information.