About one in five home computers and one in 10 work computers have been taken over and used to conduct illegal activity, according to a University of Sydney cyber security expert.

Computers which coordinate NSW’s ambulances all finally returned to normal Monday afternoon after a virus forced staff to shut them down for more than 24 hours.

Common sense and vigilance are all it takes to have a safe internet experience. We all have heard about the thousands viruses affecting computers. This is no new news for everyone. Viruses have existed since the start of the computer era. Here are some effective tips that may be of help when it comes to avoiding computer viruses.