New warnings from researchers highlight how Wi-Fi technology could turn everyday routers into surveillance tools capable of identifying individuals.
Researchers have issued alerts about the potential for Wi-Fi signals to track and identify people even without carrying a phone.
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The US Supreme Court ruled Monday that law enforcement must obtain a search warrant based on probable cause before accessing cellphone location data through geofence searches. The 6-3 decision in Chatrie v. United States strengthens Fourth Amendment protections for users' digital location history.
A new hands-on project shows how to build a simple radio transmitter and receiver using common household items like aluminum foil.
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A letter from the Pentagon, exposed this week, confirms that US adversaries have used location data from soldiers' phones to target them in war zones.