How often should personnel screening be revisited in the DISS framework?

In the DISS (Defense Information System for Security) framework, personnel screening should be revisited regularly as circumstances change. This approach ensures that any new risks or changes in an individual's situation—such as job responsibilities, changes in personal circumstances, or emerging security threats—are taken into account. Regular updates to personnel screening contribute to maintaining a secure environment and adapting to evolving security needs. This continuous evaluation is crucial, as it allows organizations to respond promptly to any factors that may impact the security clearance or eligibility of personnel.

The other options suggest fixed timelines or conditions for revisiting screening, which do not account for the dynamic nature of security threats or changes in personnel that could arise at any time. For example, annual reviews or five-year intervals may not be sufficient if significant changes occur outside those timeframes, and waiting for new security protocols means potentially overlooking immediate risks. In contrast, regular assessment allows for a proactive approach to personnel security management.