What is a computer virus?

Cyber Security
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#1

A virus is a malicious software that is executed without the user’s consent. Viruses can consume computer resources, such as CPU time and memory. Sometimes, the virus makes changes in other computer programs and insert its own code to harm the computer system.

A computer virus may be used to:

  • Access private data like user id and passwords
  • Display annoying messages to the user
  • Corrupt data in your computer
  • Log the user’s keystrokes