Trojan horse
Home > Security Definitions - Trojan horse
SearchSecurity.com Definitions (Powered by WhatIs.com)
EMAIL THIS
LOOK UP TECH TERMS Powered by: WhatIs.com
Search listings for thousands of IT terms:
Browse tech terms alphabetically:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Trojan horse



Digg This!    StumbleUpon Toolbar StumbleUpon    Bookmark with Delicious Del.icio.us   

DEFINITION - In computers, a Trojan horse is a program in which malicious or harmful code is contained inside apparently harmless programming or data in such a way that it can get control and do its chosen form of damage, such as ruining the file allocation table on your hard disk. In one celebrated case, a Trojan horse was a program that was supposed to find and destroy computer viruses. A Trojan horse may be widely redistributed as part of a computer virus.

The term comes from Greek mythology about the Trojan War, as told in the Aeneid by Virgil and mentioned in the Odyssey by Homer. According to legend, the Greeks presented the citizens of Troy with a large wooden horse in which they had secretly hidden their warriors. During the night, the warriors emerged from the wooden horse and overran the city.

CONTRIBUTORS: Santichai Dumpprasertkul
LAST UPDATED: 10 Jul 2006

Read more about Trojan horse:
- SearchSecurity.com is a portal to more information about security.
- "Learn IT: Viruses & Other Malware - Detection, Prevention, and Cure" has more information.


Do you have something to add to this definition? Let us know.
Send your comments to techterms@whatis.com


Digg This!    StumbleUpon Toolbar StumbleUpon    Bookmark with Delicious Del.icio.us   


RELATED CONTENT
Verizon UTM service reflects telecom security push
As consumers demand more defenses within their IT infrastructure, telecom companies are pushing deeper into the security market. Verizon's new UTM...
Firewall deployment options increase for enterprises
With a growing number firewall configuration options, companies need to spend more time and put more effort into determining how to design and deploy...
Screencast: How to configure a UTM device
In an on-screen demo, David Strom reviews UTM configuration options and explains how to set up a SonicWall box and interpret its alerts.

RELATED GLOSSARY TERMS
Terms from Whatis.com − the technology online dictionary
Data Encryption Standard  (SearchSecurity.com)
denial of service  (SearchSoftwareQuality.com)
A denial of service (DoS) attack is an incident in which a user or organization is deprived of the services of a resource they would normally expect...


TechTarget Security Media
Information Security View this month\\'s issue and subscribe today.
Information Security Decisions Apply online for free conference admission.
SearchSecurity.com
HomeNewsMagazineWebcastsWhite PapersLearningAdviceTopicsEventsAbout Us

About Us  |  Contact Us  |  For Advertisers  |  For Business Partners  |  Site Index  |  RSS
TechTarget provides enterprise IT professionals with the information they need to perform their jobs - from developing strategy, to making cost-effective IT purchase decisions and managing their organizations' IT projects - with its network of technology-specific Web sites, events and magazines.

TechTarget Corporate Web Site  |  Media Kits  |  Reprints  |  Site Map




All Rights Reserved, Copyright 2003 - 2008, TechTarget | Read our Privacy Policy
  TechTarget - The IT Media ROI Experts