Which action would likely be needed when a visitor does not possess a verified need-to-know status regarding sensitive information?

When a visitor does not possess a verified need-to-know status regarding sensitive information, requiring an escort for the visitor is a prudent security measure. This approach ensures that the visitor is monitored while on the premises, which helps safeguard sensitive areas and information from potential unauthorized access or disclosure.

Having an escort allows for the enforcement of security protocols and ensures that the visitor only accesses areas and information that are appropriate for their level of clearance. This practice is critical in environments where sensitive data or operations are conducted, as it strikes a balance between allowing some level of access while mitigating risk.

In contrast, unrestricted access would compromise security, while denial of entry could hinder legitimate visitors’ activities. Issuing a regular visitor badge may not provide adequate assurance that the visitor will not access sensitive areas, particularly if they don't have the necessary clearance. Therefore, requiring an escort effectively supports security by ensuring adherence to established protocols around sensitive information.