Biden to Expand National Security Agency Role in Government Cybersecurity
White House order mandates cybersecurity practices at Defense Department, spy agencies, contractors
[wsj.com]government-cybersecurity-11642604412
. . . alternative source :
[defensenews.com]
National Security Systems, along with other applicable terms used in the National Security Community, are found in CNSSI 4009, "Information Assurance Glossary"