A configuration change refers to any modification made to the settings, parameters, or setup of a computer system, network, or application. These changes can include updates to software, hardware adjustments, network settings, or security policies. Configuration changes are essential for maintaining, optimizing, or securing IT environments, but if not managed properly, they can lead to system failures, security vulnerabilities, or service disruptions. Organizations often use change management processes to track and control configuration changes, minimizing risks and ensuring stability.