How confident that the locks on the exterior and interior doors of your business are the best you can have? Even if you limit who has keys to a lock, most common locks can be overcome by a resourceful and motivated thief using anything from a lock pick set (while they are illegal to own, criminals generally do not care about the law or they wouldn’t be criminals) or even a drill.
Even some of the smaller, wireless drilling tools that do not seem like much can be used to great effect on a standard lock. If these last few lines have the wheels in your brain spinning, allow us to help you but on the brakes.