What is a computer virus? A computer virus is a type of malware created to replicate and spread itself across computers. And, just as a flu virus relies on a host cell for reproduction, a computer virus requires specific programming—often embedded in files or documents—to replicate and spread through digital systems. Next,we will see examples of known viruses and an antivirus to prevent viruses. Types of computer viruses Boot sector virus: - This type of virus can take control when you start—or boot—your computer. It can spread by plugging an infected USB drive into your computer. Web scripting virus: - This type of virus exploits the code of web browsers and web pages. If you access such a web page, the virus can infect your computer. Browser hijacker: - A browser hijacker takes over certain web browser functions that may automatically direct you to a potentially compromised website. Resident virus: ...
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