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mattblaze@federate.social ("Matt Blaze") wrote:
IMSI catchers, on the other hand, have to be set up in advance, often require a probable cause warrant, can disrupt legitimate service, and can (sometimes) be detected by targets. They're designed to be used (along with highly directional antennas) to identify and locate specific individuals as part of targeted surveillance, or for intelligence gathering without the cooperation of the local telco.