Each day, you leave digital traces of what you did, where you went, who you communicated with, what you bought, what you’re thinking of buying, and much more. This mass of data serves as a library of clues for personalized ads, which are sent to you by a sophisticated network – an automated marketplace of advertisers, publishers and ad brokers that operates at lightning speed.
The ad networks are designed to shield your identity, but companies and governments are able to combine that information with other data, particularly phone location, to identify you and track your movements and online activity. More invasive yet is spyware – malicious software that a government agent, private investigator or criminal installs on someone’s phone or computer without their knowledge or consent. Spyware lets the user see the contents of the target’s device, including calls, texts, email and voicemail. Some forms of spyware can take control of a phone, including turning on its microphone and camera.
