What type of lock mechanism requires a combination to access high-security areas?

Cipher locks are designed to enhance security by requiring a numerical or alphanumeric combination to unlock them. These locks function through a keypad or a similar interface, where the user must enter the correct sequence to gain access. They are particularly beneficial for high-security areas because they do not rely on physical keys, which can be lost or duplicated.

The use of a combination for access allows for better control over entry, as authorized personnel can be provided with the necessary codes, which can be changed easily if security is compromised. This feature makes cipher locks an effective choice for environments where security is paramount, such as in government buildings, data centers, or secure facilities.

In contrast, other types of locks, while useful for various applications, either depend on physical keys or do not offer the same level of customizable access control that cipher locks provide. This makes cipher locks an ideal solution for protecting sensitive areas.