Overview
While some adware is legitimate (e.g., supported by free software), malicious adware can be intrusive, track user behavior, and even redirect browsers to fraudulent websites.
Characteristics
- Frequent, unwanted pop-up ads.
- Changes to browser homepages or search engines.
- Slowed system performance and internet speeds.
Prevention
- Use ad-blocking software.
- Be careful when installing free software (read the fine print).
- Use reputable antivirus/antimalware tools.