During college in the mid 2000s I discovered that the network share with all corporate data was accessible (read only) to everyone. The only way it was not imm

During college in the mid 2000s I discovered that the network share with all corporate data was accessible (read only) to everyone. The only way it was not immediately obvious was because only sub folders were assigned a drive letter, and the network share was hidden in the UI. I found a way around that in the Windows open dialog and then was able to trigger Explorer to the top level directory. The share also contained private data of applicants (names, addresses, date of birth, education history) which was most concerning to us. With some friends we wrote a document showing what we found (not explaining how to do it) and posted it to an internal message board. We also sent copies via email to our IT teacher, sysadmin and the principle. Shortly after the sysadmin invited us for a chat and basically told us not to do that again. A couple of hours later we were invited to the principles office. The principle was away at the time, but the vice principle - who wanted to make a name for himself - immediately suspended us all and said he'd discuss it with the principle but said most likely we would be expelled, and they may need to involve the police. Our main concern in the post we made was that personal data was effectively publically accessible (to anyone who connects to ethernet - you didn't even need to log in). Even before GDPR, our country had very strong data protection laws which this would have breached. A few days later a parent sent a letter to the principle, effectively restating what we said, with added threats of reporting them for violating data protection of minors. Strangely after that the issue was dropped and we were allowed back...