With other key systems, employees would have keys for their specific offices, rooms or spaces. In contrast, the other keys can access particular doors depending on their authorisation level. The key with the highest level of access will open all the doors in a specific facility. The Master Lock System, also known as a Master Key System, is a special locking system that provides a specific level of access for each set of keys. A Master Lock System can simplify the process for you and your business. While you cannot necessarily foil all potential criminals, you can take steps to reduce the risk with a secure lock-and-key system. According to a survey, burglars reported that they looked for minimal security, open doors and windows, poor security systems, and detectable keys were all top reasons for break-in attempts. Your locks can be one of the best lines of defence for your home or business.