Symantec 10744983 Administration Guide - Page 242

242 Glossary computer to execute its code. Some viruses are playful in intent and effect, but some can be harmful, erasing data or causing your hard disk to require reformatting. virus attack A series of virus-infected emails from a specific domain. Symantec Mail Security allows you to choose an action to perform on these messages; by default messages received from violating senders are deferred. Web browser A client program that uses the Hypertext Transfer Protocol (HTTP) to make requests of Web servers throughout the Internet on behalf of the browser user. worm A special type of virus. A worm does not attach itself to other programs like a traditional virus, but creates copies of itself, which create even more copies. WWW (World Wide Web) An application on the Internet that allows for the exchange of documents formatted in Hypertext Markup Language (HTML), which facilitates text, graphics, and layout. As the World Wide Web has grown in popularity, its capabilities have expanded to include the exchange of video, audio, animation, and other specialized documents. The World Wide Web is also a system of Internet servers that support specially formatted documents. Another important aspect of the World Wide Web is the inclusion of hypertext links that allow users to click links and quickly navigate to other related sites. XML (eXtensible Markup The common language of the Web that is used to exchange information. Language)