Static credentials are authentication details such as passwords, API keys, or tokens that remain unchanged over time and are often reused across systems or applications. Unlike dynamic credentials, which are generated and updated regularly, static credentials persist until manually changed. This makes them a common target for cyber attackers, as their compromise can lead to unauthorized access for extended periods. Best practices recommend minimizing the use of static credentials, rotating them frequently, and replacing them with more secure authentication methods like multi-factor authentication or short-lived tokens whenever possible.