The PDCA cycle-Plan, Do, Check, Act-is a repeating method for improving a process. Teams plan a change, put it into practice, measure the results, and use what they learn to adjust the next step. Because the loop repeats, decisions can be reviewed as conditions or evidence change.
In cybersecurity, PDCA can help organizations manage security processes such as incident response, access reviews, and risk treatment. For example, a team can plan a control change, deploy it, check whether it reduces the identified risk, and refine it if gaps remain. PDCA is a management approach, not a security control by itself; its value is in making responsibilities, results, and corrective actions visible and repeatable. In the article context, it describes how innovation governance can adapt to changing pressures through structured review rather than one-time decisions.