Adware is short for advertising-supported malware. It is unwanted software that puts adverts on your computer.
You may hear adware viruses called a PUP (potentially unwanted program). This means it is a program that has installed itself without the computer user saying it was OK to do so.
Adware can be very annoying and can make it difficult to use the internet because of:
- Too many adverts
- Flashing pop-up windows
- Video adverts that open and play automatically
Adware exists solely to make money for its developer and it does this by showing these adverts.