What we know right now is the computer system did get hacked and the school and police are looking for who's responsible. IT specialists tell us this can happen to any school system.
At the De Pere school district..
"Computers were hacked and students can't find out what their grades are," says Ed Tarrence of De Pere.
There's an ongoing investigation. For computer expert Ed Tarrence it's a unique situation.
"I haven't heard of it involving the school system."
However, this is nothing new to UW Green Bay IT security expert Dave Kieper. He says schools are an easy target.
"It's just a matter of whether they find a way through the door to try to get in and attack the system."
Some IT Specialists say that school systems will sometimes use the same operating system for eight years and that can make them very susceptible to hackers.
Kieper monitors UWGB computer system and while it may be tougher to hack a university system, school districts may not have the funding to keep up.
"If they're not kept up to date then they're going to become vulnerable. There's thousands of vulnerabilities that come up that are discovered every month."
"It would help if they could get a little better funding I would say," says Tarrence.
Both the school district and the De Pere Police Department would not comment on the situation.
De Pere Police are now taking the lead on this investigation. They plan to hold a news conference once their work is complete.