Visual data is generated by photons, presenting clear information over longer distances than most other signals. A network of cameras linked to a bunch of monitors in a dark room is one of the first things that … See more

Audio surveillance began to rapidly evolve in the 20th century as scientists developed a greater mastery over electricity and signals. Telephones translated the audio into electric signals, but they couldn’t hear what was g… See more

Although the increasing use and capacity of other surveillance technologies is worrisome, Internet surveillance is a different type of threat. The Internet is a wonderful tool; you’re likely only reading this article r… See more

Smartphones have additional connectivity features that can be used to surveil a person to an extreme degree. While many apps can spy as a form of malware, others intentionally allow someone else to spy on the phone. … See more