I have seen many doors open simply by attacking the latch with a credit card or piece of wire. As one pen tester said it. Locks are an effort, but doorframes are easy.
Even when a door is well hung, I have seen guys use a car jack to stretch the frame of the door, so they can pry open the latch.
DRM only affects paying customers. It plays no role in effectively combatting piracy.
Only good service and good pricing is effective against piracy.