Malware An intentionally malicious software or code that is designed to damage your computer or collect information without your knowledge, this also sometimes includes adware and freeware.
Spyware A type of malware that collects information about users without their knowledge, often to track browsing habits and to create pop-up advertisements.
Virus A self replicating software program that is designed to infect a computer by rapidly spreading from one file to another causing great harm.
Trojan Horse A malware that appears to be benign or desirable and thus tricks the user into allowing the program access to their computer.
Pharming A technique used to redirect a legitimate website's traffic to another illegitimate website.
Clickjacking A technique that tricks users into clicking on a malicious link by adding the link to a transparent layer over what appears to be a legitimate web page.
Browser Hijacking Occurs when Malware or Spyware replaces your browser's home page with its own in order to force more hits to a particular website.
Mousetrapping Commonly used by pornographic sites, this technique keeps visitors from leaving a website by locking them into a window, opening multiple windows on the desktop, or re-launching their website in a winder that can't be closed.
Phishing A mail or instant message scam that is disguised to look like official communication from a legitimate website.
SPAM Unsolicited email or junk mail.