Cybersecurity Glossary: Terms Explained in Plain English | TecnetOne

What Is a Computer Virus? Definition | TecnetOne Glossary

Written by Tecnet One | Oct 7, 2026, 4:37:13 PM

A computer virus is a type of malware that attaches itself to a legitimate file or program and copies itself to other files when someone opens it. Like a biological virus, it needs a host to spread, and it can delete data, damage the system or open the door to other threats.

How TecnetOne handles it: Managed Endpoint Protection

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