Another computer breach, this one at Oklahoma State Universitiy, has potentially exposed the names, addresses and Social Security numbers of some 70,000 students, faculty and staff who bought parking and transit services permits in the past six years, a newspaper reports.

The Oklahoman notes that the university didn’t let students know until this week, even though the breach was discovered in March. “Officials said they first wanted to do an investigation to see if any Social Securities numbers had been accessed. They were not able to make a determination,” the newspaper says.