Which action is NOT part of establishing communications security (COMSEC)?

Establishing communications security (COMSEC) involves various proactive measures to safeguard communication systems from interception and exploitation. Implementing tactical drills, while beneficial for overall operational readiness and preparedness, does not directly contribute to the core activities associated with COMSEC. Tactical drills focus more on the execution of tactical procedures and readiness of personnel rather than the specific actions required to ensure that communications remain secure.

In contrast, monitoring effective communications practices, identifying vulnerabilities, and implementing countermeasures are all crucial components of COMSEC. Monitoring helps assess the effectiveness of communication protocols; identifying vulnerabilities allows for the recognition of weaknesses in the system; and implementing countermeasures directly addresses those vulnerabilities to enhance security. Each of these steps is essential for maintaining the integrity and confidentiality of communications, making them integral to COMSEC.