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Computer Security Resource Center

Computer Security Resource Center

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    Glossary
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optional modification

Definition(s):

  National Security Agency (NSA)-approved modification not required for universal implementation by all holders of a COMSEC end-item. This class of modification requires all of the engineering/doctrinal control of mandatory modification but is usually not related to security, safety, TEMPEST, or reliability. See mandatory modification (MAN).
Source(s):
CNSSI 4009-2015 [Superseded]