By entering certain strings of numbers and symbols into your phone's dialer, you can gain access to a world of hidden ...

These malicious programs may exploit built-in features and permissions on your iPhone or Android to spy on you. Here's how to identify and remove stalkerware from your device. What is stalkerware?

These surprising apps are firing up enormous server farms miles away, processing data nobody asked for, and quietly killing your phone's battery, says one expert.