Scammers use computer viruses to gain access to your computer details, which allows them to steal your identity and money. They may also get into your WIFI network for the same reason.
Viruses are small computer programmes that try and infect other computers, tablets and smartphones. Once they’re in your computer, they spread from one device to another, usually by a dodgy link or download.
They can secretly monitor your computer activity, scan for passwords, and even take control of your computer. It is always wise to have anti-virus installed on your computer (there are plenty of good free ones available), which can protect you from these criminals and weed out any viruses you may already have.