Active Content

Active content (also known as mobile code) consists of programs that make actions happen automatically on a Web page without your knowledge or consent. Active content includes Java applets, ActiveX controls, Java Scripts, Visual Basic scripts, plug-ins, executable files, animated GIFs, stock tickers, weather maps, and streaming audio and video.

Active content is used on Web sites to create animations and other interactive features. Unfortunately, it can also be used to send and execute malicious code on your computer. Active content can be downloaded onto your computer without your consent, and it can also be delivered in emails and instant messages.

Threats that take advantage of vulnerabilities in active content technologies include:

• Malware
• Phishing
• Spyware
• Adware
• Hacking

See these encyclopedia entries for information on protective measures against these threats.