UIDAI users can check online whether their mobile number is linked to Aadhaar. The link is required for OTP-based services, ...

Federal immigration officers often use facial recognition technology to identify immigrants in the field. Now, a newly revealed document from the Department of Homeland Security outlines plans to give ...

Scientists in Germany have demonstrated a startling new form of surveillance: identifying people using nothing more than ordinary WiFi signals. By analyzing how radio waves bounce around a room, ...