The revelation prompted an IT manager from the Supreme Court to request help from the Communications Security Establishment, according to emails released to CBC News through the Access to Information Act. Questions about BlackBerry MessengerIn a statement to CBC News, a spokesperson for the Supreme Court said the court wanted "to better understand any possible implications of this technology for the court." CSE met with officials from the Supreme Court to explain how the technology worked, Remi Samson said. IMSI catchers pretend to be a cellphone tower to attract nearby cell signals. The locations in black are where CBC/Radio-Canada detected IMSI catchers in Ottawa.

Source: CBC News October 20, 2017 09:00 UTC