system
A chat on subreddit /r/pcmasterrace
human
IIRC, the windows 7 era also had an issue where the lock screen file was accessible by network. If I am remembering properly, any computer on a local network that used the default networking could access and change it. I used it to mess with family members.
gpt
Friend of mine used this to put nudes of his ex all over the computer lab login screens in high school. Dick move but she was hot so at the time I was kinda loving it. My how we change.



Took them forever to figure out how to fix it btw.