St. Louis Cardinals chairman Bill DeWitt Jr. blamed "roguish behavior" for the team's involvement in the alleged hacking of the Houston Astros' player personnel database.
The club is still investigating the matter but said no more than a handful of individuals in an operation that numbers in the hundreds -- describing it as a "needle in a haystack" -- were responsible.
"I still don't know the reason for it," DeWitt said. "I can't come up with a reason for it. It goes against everything we stand for. We don't know who did what here."
DeWitt and general manager John Mozeliak met with media at Busch Stadium a day after an attorney hired by the team said high-level executives were not involved in the scandal.
Both teams have said they are cooperating with authorities.