When people imagine a hacker, they often picture someone in a black hoodie and a V for Vendetta mask — a mysterious figure who might call with a robotic voice or lock you out of your social media accounts, demanding ransom via an OTP, but hackers have evolved. They no longer hide behind clichés; instead, they conceal themselves in routers and the apps you trust.

An application reads the mood of a person by scanning the retina and facial features. PICS Courtesy/Priyank Gada