How is unauthorized access to a secured area commonly prevented?

The prevention of unauthorized access to secured areas is primarily achieved through access control mechanisms. Access control encompasses a variety of systems and procedures designed to limit entry to authorized individuals only. This can include physical barriers such as gates and locks, as well as electronic systems like key card entry or biometric scanning. The main objective is to ensure that only those who have the necessary permissions can enter specific secure locations, thereby effectively maintaining security.

While enhanced lighting can improve visibility and deter intruders, it doesn't inherently prevent access. Regular patrols can act as a deterrent and help spot suspicious activity, but they rely on human oversight rather than a systemic approach to controlling access. Security cameras can monitor and record activity but do not physically prevent someone from entering. Access control is distinct in its proactive approach to restricting entry, making it the primary means of preventing unauthorized access to secured areas.