Hardware locks are physical devices used to secure equipment or data. They can be found in various forms, such as key locks, combination locks, or electronic locks. These locks prevent unauthorized access to computers, servers, or other sensitive hardware, ensuring that only authorized users can operate or access the equipment. In addition to protecting physical devices, hardware locks can also safeguard software applications. For example, some software programs require a hardware key to function, which is a small device that must be connected to the computer. This method helps prevent piracy and ensures that only legitimate users can access the software.