Officials at Notre Dame are re-checking their security procedures after a man posted a video on the Internet showing how he sneaked into the stadium to see the Fighting Irish play Georgia Tech.
The six-minute video on YouTube showed the man slipping into the stadium by posing as a Roman Catholic priest with a camera crew.
A university spokesman says ushers made "an honest mistake" in failing to check the man and his companions for credentials.
Usually video crews would have to have a field pass or a media credential to enter the stadium and get that close to the action.
The Notre Dame official says there will be no major changes in security rules, but that current procedures will be reviewed and followed more closely.