During an active shooter situation, which action is correct for a security guard to take?

During an active shooter situation, the primary responsibility of a security guard is to ensure the safety of individuals in the vicinity. Keeping others from entering any area where an active shooter may be located is a crucial and proactive measure. This action helps to minimize the risk of additional casualties and prevents further chaos by controlling who can access potentially dangerous areas.

In such a chaotic environment, allowing individuals to unwittingly place themselves in harm's way can lead to greater risk and heightened confusion. By restricting access to dangerous areas, the security guard not only protects individuals but also facilitates a controlled environment in which law enforcement can effectively respond to the situation.

The other choices do not carry the same level of consideration for safety and can be problematic. For instance, forcing all employees to evacuate can lead to panic and disorder rather than a safe and orderly evacuation. Drawing attention to oneself, while seemingly helpful for guiding others, can actually increase risk by making the individual a target or causing distraction during a critical moment. Lastly, leaving the building without ensuring the safety of others conflicts with the guard's role to protect and assist during emergencies.