During a lockdown situation, what should a security guard do?

In a lockdown situation, the primary responsibility of a security guard is to ensure the safety and security of the individuals within the premises. The correct action is to secure the premises, which involves locking doors, closing windows, and making sure that everyone is safely inside the building. This helps to prevent any potential threat from entering and protects the individuals inside.

Awaiting further instructions is crucial because decisions about evacuation or further actions need to be made based on the unfolding situation and guidance from law enforcement or emergency personnel. Remaining vigilant and calm during this time allows the security guard to respond effectively to any further developments.

The other options suggest actions that could compromise safety: opening exits could allow an intruder in, leaving the premises could leave vulnerable individuals unprotected, and engaging with individuals outside could put the guard at risk and distract from addressing the situation at hand. Thus, securing the area and waiting for further instructions is the most appropriate response.