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NCSC
The National Cyber Security Centre (NCSC) is the United Kingdom's lead technical authority on cyber security. It works to protect the UK's critical services from cyber attacks and provides advice to the public and private sectors on how to stay safe online.

TECHNICAL DEFINITION
The National Cyber Security Centre (NCSC) is the United Kingdom's primary technical authority for cybersecurity, operating as a component of GCHQ to provide incident response, threat intelligence, and guidance for protecting critical national infrastructure (CNI) and public/private sector entities from cyber threats and hostile state actors.
BACKGROUND
Computer security is a subdiscipline within the field of information security. It focuses on protecting computer software, systems, and networks from threats that can lead to unauthorized information disclosure, theft, or damage to hardware, software, or data, as well as to the disruption or misdirection of the services they provide.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- National Cyber Security Centre
- UK NCSC
- GCHQ Cyber
- UK cyber authority
- CERT-UK successor
USAGE NOTE
While other countries have similarly named bodies, 'NCSC' in an international cybersecurity context almost always refers to the UK's organization.
DEVELOPERS
Organizations developing technology related to NCSC.
The UK's lead technical authority on cyber security, which is part of the Government Communications Headquarters (GCHQ). It develops guidance, tools, and services, such as the Active Cyber Defence (ACD) programme, to help protect the UK from cyber threats.
A United States government organization within the Office of the Director of National Intelligence. It leads and supports U.S. counterintelligence and security activities, addressing threats from foreign intelligence entities and insiders.
A British intelligence and security organisation responsible for providing signals intelligence and information assurance to the government and armed forces of the United Kingdom. As the parent agency of the NCSC, it is at the forefront of developing cyber defence and offence technologies.
A U.S. federal agency responsible for cybersecurity and infrastructure protection across all levels of government. CISA develops and shares threat information, tools, and frameworks, often collaborating with partners like the NCSC.
A British multinational defence, security, and aerospace company. Its Applied Intelligence division is a key industry partner for the UK government, developing advanced cybersecurity, threat intelligence, and surveillance technologies.
The security division of BT Group, a major UK telecommunications provider. It develops and operates security platforms to protect its own global network and provides services to corporate and government customers, working closely with the UK NCSC on national infrastructure protection.
Now part of Google Cloud, Mandiant is a leading company in incident response and threat intelligence. It develops technologies and methodologies for detecting and analyzing advanced cyber threats, and frequently collaborates with government agencies like the NCSC on major incident investigations.
A UK-based global cyber security and risk mitigation expert. It provides consulting, testing, and managed services, and is an approved partner in multiple NCSC schemes, contributing to the development and implementation of security best practices and technologies.