Communications Electronics Security Group. CESG is the Information Assurance arm of GCHQ which provides advice and assistance on the security of communications and electronic data. It works with Government departments and agencies and the Armed Forces, as well as public and private sector companies.
Found on http://www.encyclo.co.uk/local/20790
Communications Electronic Security Group
Found on http://www.met.police.uk/foi/glossary.htm
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