MLB and the MLBPA have agreed on rules to allow MLB to police electronic sign stealing, and to suspend players who engage in electronic sign stealing, per Evan Drellich.
Drellich, who, with Ken Rosenthal, broke the initial story on the Astros cheating that included Mike Fiers going on record about the cheating, says that an outside security firm has been hired to monitor access to the video replay rooms in the stadiums during games, and will be implementing a system to edit out signs from the video footage players have access to in-game.