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  1. How Computer Viruses Work - HowStuffWorks

    In this article, we will discuss viruses -- from "traditional" viruses to e-mail viruses and exploits that could target your mobile phone -- so that you can learn how they work and understand how to …

  2. Computer virus - Wikipedia

    Any virus will by definition make unauthorised changes to a computer, which is undesirable even if no damage is done or intended.

  3. Computer viruses: How they spread and tips to avoid them - Norton

    Feb 29, 2024 · A computer virus is a malicious code or program designed to spread from one computer to another, causing damage to data and system operations. Learn how viruses work, …

  4. What Is a Computer Virus, Really? - PCMag

    May 22, 2025 · Like other programs, it’s defined by what it does, and the big thing a virus does is replicate itself. The virus exists as a collection of computer instructions attached to another …

  5. How Do Computer Viruses Work? [Updated November 2025]

    Nov 30, 2022 · Computer viruses exist as executable code. They can replicate themselves and infect multiple computers without any human interaction. This happens when a computer virus …

  6. How do computer viruses work? - BBC Science Focus Magazine

    How do computer viruses work? There are a range of different computer viruses that work in all sorts of ways to infect your computer. Here we decode the most common techniques.

  7. What Is a Computer Virus? | Computer Virus Definition - Avast

    Aug 31, 2022 · Learn what a computer virus is, how it works, what common types to watch out for, and how to defend against them in this complete guide.

  8. What is a Computer Virus? A Complete 2025 Guide - PrivacySavvy

    Sep 29, 2025 · Learn what a computer virus is, its different types, how it works, the signs of infection, and the crucial steps for protection.

  9. Computer Virus Fact Sheet - University of Houston-Downtown

    What is a Computer Virus? A computer virus is a malicious program that infiltrates your computer and executes unwanted or unauthorized actions. Viruses can damage files, disrupt operations, …

  10. How Computer Viruses Work - UMA Technology

    Dec 30, 2024 · In this article, we will delve into the intricate workings of computer viruses, how they propagate, how they can be detected and eradicated, and what measures can be taken …