Anyway I wrote some viruses and dropped them in my high school computer lab. Several ended up getting loose on the local Cincinnati area BBS scene. One ended up in McAfee antivirus pretty quickly so I assume it spread further. There was basically zero security to stop such things back then.
None of my viruses were designed to do real damage. They would print stupid messages or change your color scheme to funky colors, stuff like that.
This was back when hacking (sense 2) and the computer underground was about a mix of pranks and exploration. It’s not like today where it’s all about serious crime and espionage and the penalties are also serious. It’s definitely not fun anymore.