Spies more free to use cellphone surveillance tech without warrant, under court ruling | CBC

by Faiz Ahmed last modified 2017-11-29T14:10:00-04:00
"The devices are perhaps better known as IMSI Catchers or Stingrays, and pretend to be legitimate cellphone towers in order to collect information. Privacy advocates have long criticized the technology for how it indiscriminately gathers data, not merely on the subject of an investigation, but on all of the cellular devices in its operating radius. ... But after mounting questions from federal court judges, who only learned the devices were being used by CSIS last year, a recent top-secret warrant application was used to weigh in on the lawfulness of the technique's use. CSIS said previously it sometimes applies for warrants to use such devices and sometimes, for reasons that remain unclear, it has not."
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