What should a captain do if they receive a "security" message?

When a captain receives a "security" message, the appropriate course of action is to first assess the immediate area for safety. This allows the captain to determine whether there is a direct threat to the vessel, crew, or passengers. By evaluating the situation at hand, the captain can ensure that everyone on board is secure and make informed decisions regarding the next steps.

Moreover, assessing the area helps establish whether the security message is credible or if it originates from a false alarm, thus allowing for an effective response. If there are any visible threats or unusual activities, the captain can take immediate preventive measures to protect the vessel and those on it.

While contacting authorities may be a necessary step later on, it is crucial to first evaluate the surrounding environment to ensure that the response is appropriate and based on accurate situational awareness. This approach prioritizes safety and allows for a rational response to the security message, thus promoting a well-organized operational procedure in potentially high-stress situations.