Keys stamped with “Do Not Duplicate” are designed to restrict unauthorized copies. These markings are intended to provide an extra layer of security for key holders, theoretically ensuring that only authorized individuals can obtain duplicates. However, the effectiveness of this marking is often debated, as its legal enforceability varies and the ability to copy such keys often depends on the policies and capabilities of the key-cutting service.
The significance of this type of key lies in its perceived ability to control access. Historically, property managers and security-conscious individuals have utilized these keys to minimize the risk of unauthorized entry. The benefit is a sense of increased security, although it does not guarantee complete prevention of duplication. The marking acts more as a deterrent, relying on the ethical considerations of the key cutter.
