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The NCSC is a part of GCHQ and acts as a bridge between industry and government, providing a unified source of advice and support on cyber security, including the management of cyber security incidents.
Centre for the Protection of the National Infrastructure aims to protect national security by providing protective security advice. This advice covers physical security, personnel security and cyber security/information assurance.
APWG (Anti-Phishing Working Group) is the international coalition unifying the global response to cybercrime across industry, government and law-enforcement sectors and NGO communities. APWG does this through data exchange, research and public awareness.