My freshman year of high school, some seniors got in trouble for changing their grades (I'm almost positive we used Blackboard). Ironically, the kids who did th

My freshman year of high school, some seniors got in trouble for changing their grades (I'm almost positive we used Blackboard). Ironically, the kids who did this were all excellent students and the modifications were things like "A- is now an A". The teachers talked about the kids being hackers and that recording grades in software wasn't safe because it meant hackers could always get an A. Turned out, there was an admin account (u/p: admin/admin or something equally trivial to guess) with superuser access that someone learned.