The FBI is conducting a criminal investigation of the St. Louis Cardinals front office on allegations that they hacked into the database(s) of the Houston Astros.
http://www.nytimes.com/2015/06/17/sp...=top-news&_r=0
http://espn.go.com/mlb/story/_/id/13...stros-database
http://www.si.com/mlb/2015/06/16/st-...houston-astros
Essentially, the current GM of the Astros came from the Cardinals organization. Someone figured that he might be using the same passwords with his new team that he used with the old one, and tried them... and they worked.
The articles assert that one of the reasons that the hack was attempted was that members of the Cardinals front office appear to have been concerned that when the (now) Astros GM left their organization, he may have taken sensitive information with him.
If these allegations are true... and they appear to be... this is much worse than Deflategate. There's a huge difference between breaking a League rule (be it the NFL or MLB) and breaking the law.