Hi tech sign stealing is available which would make the Astros trash can approach seem archaic. Improvements in cameras, artificial intelligence run on a Watson like computer capability, direct electronic real time relaying to the batter. A great deal is at stake in winning the WS so clearly the incentive is there. Harsh punishments can cause most to think twice about implementing such devices and approaches but perhaps the consciences of managers and players are such that any nefarious approaches will be found out eventually. The human element is probably the weakest in keeping things secret.
Makes one wonder what other areas are subject to cheating. Certainly base stealing, hit and run, bunt and other signs might be decoded electronically as well as ball and strike calls were. We've seen steroids and HGH drugs over the recent past, bat corking was once practiced as was substances and marking of the baseball by the pitcher. In a way,Going way back to the Blacksox scandal, players were even paid to throw games. MLBB was cheating on the super live ball put into use. Never heard any admission of that by the commissioner even though it was obvious to the fans.
Be good to rid the game of the cheating spectre.