Decommissioning in cybersecurity refers to the structured process of safely retiring, removing, or disabling IT assets, systems, or infrastructure that are no longer required or have reached the end of their lifecycle. This process involves securely erasing sensitive data, disconnecting systems from networks, and ensuring that decommissioned assets cannot be exploited by unauthorized users. Proper decommissioning reduces security risks, prevents data breaches, and ensures compliance with legal and regulatory requirements. It may include steps such as inventory assessment, data sanitization, hardware disposal, and documentation. Effective decommissioning is vital for maintaining a secure and efficient IT environment.