A program that accesses and displays files and other data available on the Internet and other networks.

a word that means intended to hurt or harm.

An optional software app that adds functionality to a Web browser. Plug-ins enable users to watch movies, listen to music, play online games, and open and read documents.

a small window, usually containing an advertisement, that appears on your computer screen.

A software program that delivers advertising content in a manner that is unexpected and unwanted by the user.

A type of Malware that locates and saves data from users without them knowing about it.

a public promotion of some product or service

Facts and statistics collected together for reference or analysis