According to security best practices, what should be done if a gate is not needed?

Keeping a gate locked when it is not needed aligns with security best practices that aim to prevent unauthorized access. A locked gate serves as a physical barrier that deters intruders, even if the area is not intended for regular access. This action enhances overall security by reducing vulnerabilities associated with open or unsecured points of entry.

While other options may seem plausible in different contexts, they do not prioritize security in the same way. Leaving the gate open would allow free access, thereby increasing the risk of unauthorized entry. Installing a security camera could be beneficial, but it does not physically restrict access, which is a primary goal of security measures. Removing the gate entirely may eliminate a potential point of vulnerability, but it also removes a layer of security that is already in place, which could be counterproductive if the need for security arises in the future. Keeping the gate locked supports the principle of minimizing access to sensitive areas and helps maintain a secure environment.