Spyware applications are pieces of software that stealthily install and monitor users
There is no clear border between spyware applications and Trojans, as such applications usually spread just like Trojans, and many times Trojans spy on the infected computers. Unlike computer viruses and worms, spyware applications do not auto-replicate, but they also exploit computers for commercial advantages. Spyware covers more that monitoring users
what was the first adware ever made and when was it made??