Malware is big and malware is bad. Your computer is constantly at risk from infection by malware including viruses, worms, trojans, rootkits, dialers and spyware. Malwarebytes specializes in fighting malware. If viruses are mischief, malware is mayhem. Malware doesn’t just want to disrupt your network, it wants your keystrokes, logins, passwords, address book, data, credit card information, favorite t-shirt and possibly your cat.