Oh man, yeah also adding to the list of people that abused their highschool computer labs with this. We had so much fun, but we eventually drew the ire of the school IT admin. After class one day the teacher took us aside with the admin and asked if we had installed BO on the computers, which we of course denied... they "believed" us, heh, but gave us a stern warning that whoever was doing it should stop. We would ha…
Hex-editing Intergrade at certain points allowed you to bypass authentication and go RIIIIIGHT in. I didn’t know what that meant at the time, but my buddy sure did. He was kicked out of school a few weeks later for editing his grades.
Oh wow, yep, that's exactly what we figured out. Their save file format stored the password hash, but didn't actually encrypt or obfuscate the grade data beyond just whatever serialization they were doing. We were starting on figuring that format out when we noticed that creating a new save file with or without a password changed a byte right before the password off and on... flip it off and the app no longer prompted for the password... edit/save in the app, flip it back on, and that was that. edit: I should add, rather than get expelled we got a ton of extra credit for it since it was at least sort of sanctioned.