Many people browse the Internet without much thought to what is happening behind the scenes. Active contents are common elements that may pose hidden risks when viewed in a browser or email client.
What is active content?
To increase functionality or add design embellishments, web sites often rely on scripts that execute programs within the web browser. This active content can be used to create "splash pages" or options like drop-down menus. Unfortunately, these scripts are often a way for attackers to download or execute malicious code on a user's computer.