What is the purpose of implementing a "lockdown" feature in EAC systems?

Implementing a "lockdown" feature in Electronic Access Control (EAC) systems is crucial for ensuring the safety and security of a facility during a security threat. This feature allows for quick and efficient locking down of all entry and exit points, which can prevent unauthorized access and protect individuals inside the facility. The primary goal is to mitigate risks and respond swiftly to emergencies, such as intrusions or other threats.

By enabling a lockdown, the system can help ensure that all staff and visitors are secure and that the facility can manage the threat effectively, either by alerting the appropriate authorities or by giving time for a controlled response. The feature also enhances overall safety protocols by minimizing potential harm to individuals present at the location. In contrast, the other options do not address the primary intent of enhancing security during critical situations.