A computer virus is a type of malware that attaches itself to a program or file. A virus can replicate and spread across an infected system and it often propagates to other systems, much like a ...

What if a 'Really Nasty Virus' isn't a virus at all? This month's look at the history of cybersecurity examines early virus hoaxes—and how they interacted with real threats. Credit: JMiks/Shutterstock ...