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2. Meaning A computer virus is much like a flu-virus, which spread from host to host and has the ability to replicate itself. A computer virus is malicious code or program written, which spreads from one device to another. A virus operates by attaching itself to legitimate program. In other words, a virus need files and document to reproduce itself and spread in your system. If a virus reproduce itself and got spread in your system, then it has a capability to corrupt your system software and destroy the data.

3. Causes In today’s connected world, contact with a virus is very easy. Virus can be enter in your system through text messages and emails attachments, internet file download and social media links, shady and download. Virus can be hide behind the social sharable link like funny images, greeting cards and audio or video files. There are lots of unexpected ways that a virus can easily enter in our system.

4. Symptoms Computer virus can be detected through different symptoms: Frequent Pop-up windows. Changes to your homepages. Mass emails being sent from your email account. Frequent crashes. Unusually slow down computer performance. Unknown program start up when you turn on the computer. Unusual activities like password changes. In to prevent virus is download best antivirus software and use it on daily basis.

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