ZeroAccess, the world’s fastest-growing botnet, infected millions of computers in 2012, using them to commit large-scale click fraud and Bitcoin (a digital currency) mining. Zeus, which is also a banking trojan, causes millions of dollars in loss to its victims by siphoning money from their online bank accounts. F-Secure Antibot disinfects devices that are infected on a network by guiding the users through a simple self-cleaning process, cutting out the need to call the operator helpdesk. “Anywhere from 6% to 20% of people, depending on the study, still don’t use antivirus software,” says Mikko Hypponen, Chief Research Officer at F-Secure.