Malware
Trackware
Also known as: Tracking software, Stalkerware
Definition
Software that monitors and reports on user activity — sites visited, apps used, keystrokes, or location — typically for advertising, analytics, or stalking.
Examples
- Mobile apps with hidden trackers that collect GPS and SMS metadata.
- "Phone monitoring" products marketed for parental use but commonly abused for stalking.
Related terms
Spyware
Malware that secretly collects information about a user, device, or organization and sends it to an external party.
Adware
Software that automatically displays, injects, or redirects to advertisements, often bundled with free software and frequently tracking user behavior.
Potentially Unwanted Program (PUP)
Software that is not strictly malicious but installs without clear consent, behaves intrusively, or degrades user experience — for example, bundled toolbars, adware, or aggressive optimizers.
Greyware
Software that sits in a grey area between legitimate and malicious — annoying, intrusive, or risky, but not clearly designed to harm the user.
Mobile Malware
Malicious software that targets smartphones and tablets to steal data, intercept communications, mine cryptocurrency, or perform financial fraud.
Browser Hijacker
Software that alters browser settings without user consent to redirect traffic, change the homepage and search engine, or inject unwanted ads.