What are the five modes of COMSEC?

The five modes of COMSEC (Communication Security) are defined to establish the security and integrity of communications. The correct answer includes the modes: PT (Physical Security), CT (Communication Security), Time Delay, Receive Variable, and Zero.

• PT or Physical Security ensures that access to communication systems is controlled, preventing unauthorized physical access.

• CT or Communication Security encompasses the measures and mechanisms that protect information and communication processes from unauthorized access and exploitation.

• Time Delay refers to methods that introduce intentional delays in communication to thwart adversaries from timely interception and response.

• Receive Variable likely pertains to changing amounts of data received or the variability in handling received encrypted information to enhance security.

• Zero typically indicates a state or method of operation that negates or minimizes potential vulnerabilities.

These modes collectively contribute to a comprehensive strategy for securing communications from a variety of threats, ensuring that integrity, confidentiality, and availability are maintained.