During a patrol, what major concern should a security guard always remain vigilant for?

A major concern that a security guard should always remain vigilant for is potential security risks or incidents. This focus is critical because the primary role of a security guard is to ensure the safety and security of the premises they are assigned to protect. By being alert to possible security threats, such as unauthorized access, suspicious behavior, or any other activities that could compromise the safety of people or property, guards can effectively prevent incidents before they escalate.

Vigilance in spotting and addressing potential security risks allows a security guard to act swiftly, potentially avoiding harm, theft, or damage. This proactive approach is essential in maintaining a secure environment and protecting clients, patrons, and staff. While other aspects like social interactions with patrons, staff productivity, and client feedback are relevant, they fall secondary to the fundamental responsibility of identifying and mitigating security threats.