Yeah, me and my friends did that too, a decade later. We used something like shutdown -s -t [time] though.

We used to put this file into the shared folder everyone could access, made it hidden, created a shortcut, changed the shortcut’s image to a folder and renamed it to something along the lines of “maths test solutions”.

We also made some other .bat files which looked like this:

powerpoint
powerpoint
powerpoint
powerpoint
⋮

It’s blatantly illegal and Facebook/Meta has probably had enough of EU fines already.

Also, see this article from 2 days ago

Tl;dr:

The case centred on a challenge by Meta after the German cartel office in 2019 ordered the social media giant to stop collecting users’ data without their consent, calling the practice an abuse of market power.