A computer virus is a type of malware that is capable of spreading itself and inserting itself into other computer programs or files. In general, a virus only becomes active when the infected code is executed. Once this happens, the virus can carry out a variety of harmful actions, such as deleting data, destroying programs or stealing personal information.
Computer viruses are often created by hackers or cyber criminals to cause damage or make a profit. Viruses can enter a system via e-mail attachments, infected websites or other methods. The effects of a virus can range from minor malfunctions to serious problems that can lead to a system becoming unusable or important data being lost.
To protect yourself against computer viruses, it is important to use anti-virus software and regularly install updates and security patches for operating systems and programs. Users should also be careful when opening emails or browsing websites and avoid unknown attachments or links.
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