Creeper. To be 100% fair to Bob Thomas, the first computer virus, known as Creeper, wasn’t sent with any malicious intent. Instead, it was mostly a case of experimentation in whether or not code ...

On February 13, 2006, a screenshot of Apple's upcoming Mac OS X Leopard leaked through iChat. Those who opened the attached "latestpics.jpg" encountered a worm, nicknamed Leap.A (Oompa Loompa), ...

The first computer virus was named Creeper, created in 1971 by Robert Thomas, a programmer at BBN Technologies (Bolt Beranek and Newman Inc., which later became part of Raytheon).

This early network also spawned the first computer virus. "I'm the creeper, catch me if you can," is the phrase that many users of ARPANET found unexpectedly popping up on their screens in 1971.

Cybersecurity architect and adjunct professor at NC State University Jeff Crume joins WIRED to answer the internet's burning questions about the history of hacking. What was the first computer virus?

'Welcome to the dungeon' was the message that flashed up on computer screens in 1986. This was thought to be the first virus for personal computers and became known as 'Brain'.