Define "Heightened Security Measures."

Heightened security measures refer to increased protective actions implemented in response to specific threats identified during a security assessment. These measures are typically put in place when there is a heightened level of risk or a discernible threat to maritime security. Such actions could include increased surveillance, additional personnel on guard, enhanced screening procedures, or modified operational protocols aimed at mitigating potential risks.

This dynamic approach is crucial in maritime security, as it allows organizations and vessels to respond effectively to evolving threats rather than relying solely on standard security protocols. While standard protocols are important for baseline security, heightened measures represent a proactive response to specific vulnerabilities that may arise due to the rapidly changing security landscape.

On the other hand, options related to increased operational costs, crew welfare improvement, and standard security protocols do not accurately define "heightened security measures," as they focus on different aspects that aren’t inherently linked to the direct response to specific identified threats.