What type of lock is designed for high security in exterior doors?

The cylinder lock is widely recognized for its balance of security and convenience, making it a popular choice for exterior doors. This type of lock features a keyhole and a cylinder that allows the user to insert a key to operate the locking mechanism. High-security cylinder locks often include advanced features such as anti-drill plates, pick-resistant pins, and hardened materials, which significantly enhance their resistance to forced entry and tampering. While other types of locks can provide adequate security in certain situations, cylinder locks are particularly valued for their ability to offer a robust defense against common burglary techniques, making them a reliable option for safeguarding main entrances in residential and commercial buildings.

Mortise locks, while also offering a level of high security, are generally more complex to install and may not be as commonly used as cylinder locks in standard exterior applications. Tubular locks and panic hardware serve different purposes and typically do not meet the high-security standards expected from exterior door locks.