A change approval workflow is the review process used to authorize network policy edits before they are pushed into production. It usually records who requested the change, what was modified, why it is needed, and who approved it. In firewall and routing environments, this control helps prevent accidental exposure, conflicting rules, and undocumented exceptions.
In cyber security, the workflow matters because many incidents start with a legitimate-looking change that was rushed, poorly reviewed, or never removed. Strong approval steps can catch risky any-any rules, shadowed policies, and permission creep before deployment. Defenders use the workflow to enforce least privilege, preserve audit evidence, and make changes reversible. Attackers may try to bypass it through compromised admin accounts, social engineering, or emergency exceptions, which is why review, logging, and separation of duties are critical.