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en.wikipedia.org/wiki/Computer_virus

A computer virus is a type of malicious software program ("malware") that, when executed, replicates itself by modifying other computer programs and inserting ...

us.norton.com/internetsecurity-malware-what-is-a-computer-virus.html

A computer virus, much like a flu virus, is designed to spread from host to host and has the ability to replicate itself. Similarly, in the same way that viruses cannot ...

www.webroot.com/us/en/home/resources/articles/pc-security/computer-security-threats-computer-viruses

Designed to relentlessly replicate, computer viruses infect your programs and files, alter the way your computer operates or stop it from working altogether.

searchsecurity.techtarget.com/definition/virus

This technical definition explains the concept of computer viruses and how they work, as well as a brief history and notable examples of viruses.

computer.howstuffworks.com/virus.htm

Strange as it may sound, the computer virus is something of an Information Age marvel. On one hand, viruses show us how vulnerable we are -- a properly ...

www.pctools.com/security-news/what-do-computer-viruses-do

Click here to learn about what computer viruses do at the PC Tools Security News blog. Learn more about web security, how to keep your computer safe, and  ...

www.webopedia.com/TERM/V/virus.html

A computer virus is a program or piece of code that is loaded onto your computer without your knowledge and runs against your wishes.

www.computerhope.com/jargon/v/virus.htm

Oct 30, 2017 ... Computer dictionary definition for what virus means including related links, information, and terms.

blog.productcentral.aol.com/2012/08/14/what-are-computer-viruses

Aug 14, 2012 ... What is a Computer Virus? Computer viruses are destructive programs that delete or corrupt files, interfere with your computer opera...