Backstory: My SIL helped set up and take pictures for a friend’s wedding. Afterwards the friend decided to be an absolute asshole, didn’t pay her/feed her, slandered her within their shared community, and is just continuing to be horrible, while still demanding the photos.
The plan: The pictures will be on an SD card, I want to booby trap the card to be a nusiance. Like make pop ups whenever it’s plugged in, or slowly corrupt itself over time. Nothing damaging or illegal to their computer just a little petty payback.
What do I need to do to the card to achieve this? I assume change the firmware to act like a HID and autorun a script. How would I do that?