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Webloc ad based tracker watched 500 million devices worldwide

incidentclosedApr 11, 2026 — Apr 13, 2026

According to Citizen Lab, the Webloc surveillance tool tracked up to 500 million devices globally by tapping into advertising data to support law enforcement investigations in the United States, Hungary, and El Salvador. Developed by Cobwebs Technologies and now sold by Penlink, Webloc is used by agencies including ICE, the military, and various police…

Root sourcecitizenlab.ca
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