The United States Department of Homeland Security (DHS) is the U.S. federal executive department responsible for public security, roughly comparable to the interior or home ministries of other countries. Its stated missions involve anti-terrorism, border security, immigration and customs, cyber security, and disaster prevention and management.
The Security Service, also known as MI5, is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence machinery alongside the Secret Intelligence Service (MI6), Government Communications Headquarters (GCHQ), and Defence Intelligence (DI). MI5 is directed by the Joint Intelligence Committee (JIC), and the service is bound by the Security Service Act 1989. The service is directed to protect British parliamentary democracy and economic interests and to counter terrorism and espionage within the United Kingdom (UK).
Critical infrastructure, or critical national infrastructure (CNI) in the UK, describes infrastructure considered essential by governments for the functioning of a society and economy and deserving of special protection for national security.
The Joint Terrorism Analysis Centre (JTAC) is an all-source intelligence organisation closely related to the United Kingdom Security Service which provides advice to the British government and firms within the Critical National Infrastructure on terrorist threats.
The United States under secretary of defense for policy (USDP) is a high level civilian official in the United States Department of Defense. The under secretary of defense for policy is the principal staff assistant and adviser to both the secretary of defense and the deputy secretary of defense for all matters concerning the formation of national security and defense policy.
The Australian Intelligence Community (AIC) and the National Intelligence Community (NIC) or National Security Community of the Australian Government are the collectives of statutory intelligence agencies, policy departments, and other government agencies concerned with protecting and advancing the national security and national interests of the Commonwealth of Australia. The intelligence and security agencies of the Australian Government have evolved since the Second World War and the Cold War and saw transformation and expansion during the Global War on Terrorism with military deployments in Afghanistan, Iraq and against ISIS in Syria. Key international and national security issues for the Australian Intelligence Community include terrorism and violent extremism, cybersecurity, transnational crime, the rise of China, and Pacific regional security.
The Federal Office for Information Security is the German upper-level federal agency in charge of managing computer and communication security for the German government. Its areas of expertise and responsibility include the security of computer applications, critical infrastructure protection, Internet security, cryptography, counter eavesdropping, certification of security products and the accreditation of security test laboratories. It is located in Bonn and as of 2024 has about 1,700 employees. Its current president, since 1 July 2023, is former business executive Claudia Plattner, who took over the presidency from Arne Schönbohm.
Jonathan Douglas Evans, Baron Evans of Weardale, is a British life peer who formerly served as the Director General of the British Security Service, the United Kingdom's domestic security and counter-intelligence service. He took over the role on the retirement of his predecessor Dame Eliza Manningham-Buller on 21 April 2007. Evans was succeeded by Andrew Parker on 22 April 2013.
The United Kingdom Terror Threat Levels, often referred to as UK Threat Levels, are the alert states that have been in use since 1 August 2006 by the British government to warn of forms of terrorist activity. In September 2010 the threat levels for Northern Ireland-related terrorism were also made available. In July 2019 changes were made to the terrorism threat level system, to reflect the threat posed by all forms of terrorism, irrespective of ideology. There is now a single national threat level describing the threat to the UK, which includes Islamist, Northern Ireland, left-wing and right-wing terrorism. Before 2006, a colour-based alert scheme known as BIKINI state was used. The response indicates how government departments and agencies and their staffs should react to each threat level.
The counter-terrorism page primarily deals with special police or military organizations that carry out arrest or direct combat with terrorists. This page deals with the other aspects of counter-terrorism:
The National Counter Terrorism Security Office (NaCTSO) is a police unit. It is funded by, and reports to, the Home Office, which advises the British government on its counter-terrorism strategy.
Presidential Decision Directive 62 (PDD-62), titled Combating Terrorism, was a Presidential Decision Directive (PDD), signed on May 22, 1998 by President Bill Clinton. It identified the fight against terrorism a top national security priority.
The United Kingdom has a diverse cyber security community, interconnected in a complex network.
The National Cybersecurity and Critical Infrastructure Protection Act of 2013 is a bill that would amend the Homeland Security Act of 2002 to require the Secretary of the Department of Homeland Security (DHS) to conduct cybersecurity activities on behalf of the federal government and would codify the role of DHS in preventing and responding to cybersecurity incidents involving the Information Technology (IT) systems of federal civilian agencies and critical infrastructure in the United States.
The Government of the United Kingdom maintains several intelligence agencies that deal with secret intelligence. These agencies are responsible for collecting, analysing and exploiting foreign and domestic intelligence, providing military intelligence, and performing espionage and counter-espionage. Their intelligence assessments contribute to the conduct of the foreign relations of the United Kingdom, maintaining the national security of the United Kingdom, military planning, public safety, and law enforcement in the United Kingdom. The four main agencies are the Secret Intelligence Service, the Security Service (MI5), the Government Communications Headquarters (GCHQ) and Defence Intelligence (DI). The agencies are organised under three government departments, the Foreign Office, the Home Office and the Ministry of Defence.
The National Cyber Security Centre (NCSC) is a government computer security organisation in Ireland, an operational arm of the Department of the Environment, Climate and Communications. The NCSC was developed in 2013 and formally established by the Irish government in July 2015. It is responsible for Ireland's cyber security, with a primary focus on securing government networks, protecting critical national infrastructure, and assisting businesses and citizens in protecting their own systems. The NCSC incorporates the Computer Security Incident Response Team (CSIRT-IE).
The National Cyber Security Centre (NCSC) is an organisation of the United Kingdom Government that provides advice and support for the public and private sector in how to avoid computer security threats. It is the UK's National technical authority for cyber threats and Information Assurance Based in London, it became operational in October 2016, and its parent organisation is GCHQ.
National Critical Information Infrastructure Protection Centre (NCIIPC) is an organisation of the Government of India created under Section 70A of the Information Technology Act, 2000 (amended 2008), through a gazette notification on 16 January 2014. Based in New Delhi, India, it is designated as the National Nodal Agency in terms of Critical Information Infrastructure Protection. It is a unit of the National Technical Research Organisation (NTRO) and therefore comes under the Prime Minister's Office (PMO).
Sir Jeremy Ian Fleming was the Director of the Government Communications Headquarters, the UK's intelligence, cyber and security agency. He was appointed in 2017 and was the 16th person to hold the role. He left the post in May 2023.
The Department of Home Affairs is the Australian Government interior ministry with responsibilities for national security, law enforcement, emergency management, border control, immigration, refugees, citizenship, transport security and multicultural affairs. The portfolio also includes federal agencies such as the Australian Border Force and the Australian Security Intelligence Organisation. The Home Affairs portfolio reports to the Minister for Home Affairs, currently held by Clare O'Neil, and was led by the Secretary of the Department of Home Affairs, Mike Pezzullo, until his sacking in November 2023 for breaching the code of conduct. In 2022, the Australian Federal Police, Australian Criminal Intelligence Commission and Australian Transaction and Analysis Center were de-merged from the department and moved to the Attorney General portfolio.
