Virus is a type of malicious software (malware) that can self-replicate and spread from one computer to another without the user’s knowledge or permission. Similar to biological viruses, computer viruses infect files or programs and use the resources of the infected device to propagate themselves.
Viruses typically attach themselves to legitimate programs or documents and are activated when these files are opened. They can cause harm by damaging or deleting files, slowing down system performance, or providing unauthorized access to attackers.
To protect against viruses, it is important to use reliable antivirus software, regularly update the system and applications, and avoid opening suspicious attachments or links. User vigilance plays a key role in preventing viral infections.
