The most critical feature for identifying true security incidents and minimizing storage requirements is the integration of analytics for behavior and pattern recognition. This feature can intelligently distinguish between routine maintenance activities and genuine security threats, thereby reducing false alarms and focusing on actual unauthorized access attempts. Motion detection can help reduce storage, but it may still trigger false alarms due to non-security-related movements. Varifocal lenses and PTZ (Pan-Tilt-Zoom) functionalities are useful for surveillance but do not directly address the minimization of false alarms or storage optimization.