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What you need to know - Viruses
What is a virus?
A virus is a computer program which runs on your computer without your knowledge. Viruses are designed to replicate themselves when they are run, so that every part of your computer becomes infected. Once this happens, you can easily spread the virus to others through files and emails.
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How does that affect my security?
Viruses can be used to track what you do on your computer - and they can give unauthorised access to your security details. They can also make your computer behave strangely, from annoying but ultimately harmless problems like playing music or displaying messages to something far more serious such as changing or deleting files, or even wiping the contents of your hard disk.
What can I do?
First of all, you should make sure you have the latest antivirus software installed on your computer. Then, at all times, you should be careful about what sites you visit and what files you download. You should also treat all spam email with suspicion.
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