It's looks it might have been found. Ohio State and Georgia were the primary in-game and video recording scouting targets this season.
https://www.washingtonpost.com/sports/2023/10/25/michigan-computers-sign...
The sign-stealing investigation threatening to disrupt Michigan’s football season began after an outside investigative firm approached the NCAA with documents and videos the firm said it had obtained from computer drives maintained and accessed by multiple Michigan coaches, according to two people familiar with the matter, evidence that suggests the scandal’s impact could broaden beyond the suspension of one low-level assistant.
Among the pieces of evidence the firm presented, these people said, was a detailed schedule of Michigan’s planned sign-stealing travel for the rest of this season, listing opponents’ schedules, which games Michigan scouts would attend, and how much money was budgeted for travel and tickets to scout each team.
The opponents targeted the most on this schedule, these people said, were not surprising. Atop the list was Ohio State, Michigan’s top rival in the Big Ten, and scouts planned to attend as many as eight games, costing more than $3,000 in travel and tickets. Next on the list was Georgia, a potential Michigan opponent in the College Football Playoff, with four or five games scheduled for in-person scouting and video-recording, also costing more than $3,000 in travel and tickets.
In total, these people said, Michigan’s sign-stealing operation expected to spend more than $15,000 this season sending scouts to more than 40 games played by 10 opponents. According to the university’s public salary disclosure records, Stalions, listed as an administrative specialist in the athletics department, made $55,000 in 2022.
MOD EDIT - moved to Colleges sports