What physical security activity focuses on detecting and alerting to potential security breaches?

The focus of surveillance and notification is to detect and alert to potential security breaches. This activity is fundamental in physical security as it involves monitoring environments to identify unauthorized access or unusual behavior that may indicate security threats. With the integration of technology such as cameras, motion detectors, and alarm systems, organizations can maintain constant vigilance over their physical assets.

Surveillance provides ongoing observation, while notification systems ensure that any suspicious activity is promptly reported to security personnel or relevant authorities. Such proactive measures can significantly enhance an organization's ability to respond effectively to potential threats, thereby protecting assets and personnel.

In contrast, obstacles and prevention mainly address measures to deter unauthorized access, while access control refers to systems that limit entry to secured areas based on specific permissions. Threat assessment involves identifying and evaluating potential risks but does not specifically focus on the immediate detection and alerting of incidents, which is the primary emphasis of surveillance and notification.