What occurs when a system is no longer needed by an organization?

When a system is no longer needed by an organization, the appropriate action to take is asset disposal. This process involves the proper disposal or removal of hardware and software assets that are no longer in use. Effective asset disposal is essential for mitigating potential security risks associated with outdated or unused systems, such as unauthorized access to sensitive data.

During asset disposal, organizations must ensure that any data stored on these systems is securely deleted to comply with legal and regulatory requirements, preventing any possibility of data breaches. This could include methods like data wiping or physical destruction of the storage media.

The other options involve different processes that don't specifically address the situation of needing to dispose of a system. System upgrade refers to improving existing systems, data migration involves transferring data to a new system, and system archiving pertains to preserving data from a system that may still be required for future reference.