Oct. 18: The NCAA notifies the Big Ten and Michigan that it had received allegations the Wolverines were involved in a sign-stealing scheme and had allegedly sent representatives to games to scout future opponents, which has been prohibited by NCAA rules since 1994. The Big Ten said it had notified Michigan's future opponents of the allegations.
"The Big Ten Conference considers the integrity of competition to be of utmost importance and will continue to monitor the investigation," the conference said in a statement.
In a statement, Harbaugh denied being involved or having knowledge of the scheme.
"I do not have any knowledge or information regarding the University of Michigan football program illegally stealing signals, nor have I directed any staff member or others to participate in an off-campus scouting assignment," Harbaugh said.
Oct. 19: ESPN reports that Connor Stalions, a Wolverines off-field analyst and retired captain in the U.S. Marine Corps, is at the center of the NCAA's investigation into alleged sign stealing. Sources told ESPN that NCAA enforcement staff sought access to Stalions' computer.
A source told ESPN that the Wolverines have used an "elaborate" scouting system to steal signals from future opponents since at least 2021.
Michigan announced the next day that it had suspended Stalions with pay pending the conclusion of the investigation.