In the realm of physical security, 'obstacles' refer to what?

In the context of physical security, 'obstacles' specifically refer to physical barriers that are designed to prevent unauthorized access to restricted areas or sensitive assets. These obstacles can take various forms, such as fences, walls, locks, gates, and other structural elements that help deter or impede intruders.

By implementing physical barriers, organizations enhance their security posture by creating tangible deterrents against unauthorized entry. These obstacles serve not only to block physical access but also to signal to potential intruders that an area is secured and monitored. The presence of these security measures can also facilitate the monitoring of traffic through secured areas, further reinforcing the overall security strategy.

Other options, while relevant to different aspects of security management, do not accurately define what 'obstacles' are in the physical security context. Surveillance mechanisms, for example, are tools for monitoring and detecting unauthorized access, while incident logging tools and communication systems serve administrative and operational functions rather than providing direct barriers to access.