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What is malicious code or malware?

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Article SummaryMalicious code or malware is viruses, worms, time bombs, Trojan horses found in any computer code, files, scripts, agents, programs, or applications.
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Malicious Code, sometimes called malware, is defined as any computer code, files, scripts, agents, programs, or applications that perform unwanted actions on your computer. Unwanted actions can include but are not limited to:
  • installing software without your permission or knowledge,
  • redirecting your web browser to infected websites,
  • logging your keystrokes,
  • using your computer to send illegal content or files, or
  • using your computer as part of a Distributed denial of service (DDoS) attack.
The category of malicious code includes viruses, worms, time bombs, Trojan horses and other harmful  code. Anti-spam software typically also detects and removes these types of malicious code.

For more information, see What is the difference between malware, a virus, a trojan, adware, spyware, and phishing? and How can students protect their computers from viruses?
 
For more information, see the Algonquin College Information Security website.
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