The day of the technopath

The Christmas Tree worm - only affected IBM 360 mainframes. We got hit by that - must have been '86?

It was an accident as well - it picked up your mailbox contacts and forwarded it itself, but it still had a debug flag set so you got a notification email from every forwarding hop. 10,000 emails each, thank you very much...

Jeezo, fair takes ye back!