Computer virus

A computer virus is a malicious code or program that is written to alter the way a computer operates. Much like the flu, it is designed to spread from one computer to another. A virus operates by inserting or attaching itself to a legitimate program or document that supports macros in order to execute its code. In the process, a virus has the potential to cause unexpected or damaging effects, such as harming the system software by corrupting or destroying data. 

How do computer viruses spread?

Viruses can be spread through email and text message attachments, Internet file downloads, social media scam links, and even your mobile devices and smartphones can become infected with mobile viruses through App downloads.

How to protect against computer viruses?

Always keep your software up to date. This includes operating systems, to make any bug fixes are installed, and your anti-virus protection. A good rule of thumb is don't click on links within an email unless you are guaranteed who the sender is. Microsoft says 44.8 percent of Windows virus infections happen because the computer user clicked on something. Minimising downloads, using a firewall (different to anti-virus software) and a pop-up blocker as well, will all improve your chances of keeping a clean computer.

 

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