A pc virus is a sort of malicious software program that may unfold from one pc to a different, infecting information and applications. Viruses may cause quite a lot of issues, together with knowledge loss, system crashes, and safety breaches.
Viruses are usually created by attackers who exploit vulnerabilities in software program. As soon as a virus has contaminated a pc, it may possibly replicate itself and unfold to different computer systems on the identical community. Viruses can be unfold by way of e-mail attachments, malicious web sites, and USB drives.