The overview

Government Communications Headquarters (GCHQ) is a UK intelligence agency. Part of the national intelligence machinery, GCHQ works alongside organisations such as the Security Service (MI5) and the Secret Intelligence Service (MI6). It began life as the Government Code and Cypher School in 1919 and became GCHQ following the Second World War.

GCHQ employs around 5,500 people. The workforce comprises technologists, language and culture specialists, mathematicians and corporate support. There are around 1,000 engineers and approximately 250 language specialists in the organisation.

Monitoring and protection

GCHQ is charged with protecting the UK’s national interests. Its work falls into two categories:

  • Signals intelligence (SIGINT), which involves monitoring ‘signals’ traffic, ranging from telephone conversations to complex data transmitted via the internet.
  • Information assurance (IA), which is the protection of government data and information. This is administered by the Communications-Electronics Security Group (CESG), an organisation within GCHQ.

SIGINT

Most people are aware that UK intelligence agencies have the capacity to intercept communications, and this forms a significant part of the work of GCHQ. The SIGINT process involves monitoring communications in order to build up intelligence. GCHQ operatives may monitor data that is transferred via the internet, perhaps attempting to decipher the contents of encrypted information. Alternatively, they may provide information to military units that has been intercepted from phone calls made by opposition forces in combat areas.

An initial £63 million has been set aside to combat the growing threat of cyber attack.

Despite the myths and negative Orwellian connotations, accessing the personal e-mails and calls of the UK population is not a major aspect of the work. GCHQ has neither the capacity nor the inclination to monitor everybody’s communications; rather, the emphasis is on a directed approach to information, targeting the most significant threats, with access always backed up by a warrant signed by the secretary of state.

Focusing on the threats

The parliamentary intelligence and security committee report for 2010/2011 highlighted some of the main threats to the UK national interest, which form a focus for the work of GCHQ:

  • International counter-terrorism (ICT). GCHQ’s ICT work has recently focused on Yemen and east Africa, as well as areas in Asia and Pakistan. ICT is not limited to monitoring communications and producing intelligence, however, and has included tasks such as aviation security planning. ICT accounted for around a third of GCHQ’s activity in 2009/10.
  • Non-ICT. Non-ICT tasks have involved supporting the military, particularly in Afghanistan and other locations in Asia, North Africa and the Middle East. In addition, non-ICT activities include actions to combat nuclear and chemical weapons proliferation, hostile foreign activity, electronic attacks and serious criminal activity.
  • Information assurance (IA). CESG is the group responsible for information assurance activities at GCHQ. CESG conducts research and provides IA services to government departments and industry.

Changing threats

Cyber security has been identified as an area of growing importance. Increased funding has been provided (an initial £63 million has been set aside) and a strategy has been devised to help keep up with the rapid pace of innovation in the cyber sphere. This involves:

  • Protection, through the activities of CESG
  • Analysis, by the Network Defence Intelligence and Security team
  • Intelligence gathering
  • Looking at military capability by working with the Ministry of Defence (MoD) and the Defence Science and Technology Laboratory.

The agency also recently announced new partnerships with 8 UK universities including Bristol, Belfast, Imperial College London and Southampton, under which they will become centres of excellence in the field of cyber security research.

Structure, partnerships and collaborations

GCHQ teams collaborate with a variety of other agencies, departments, partners and customers. GCHQ staff may work with the MoD and the Defence Science and Technology Lab on military capabilities regarding cyber security. Their research and development programmes involve collaboration between in-house teams, outside agencies, academic institutions and partners from industry. In order to drive down costs, GCHQ works with intelligence and other government departments when procuring equipment and services from outside contractors.

Why work here?

  • GCHQ staff work with cutting-edge technology – GCHQ operates Europe’s largest local area network (LAN) and one of the world’s largest wide area networks (WAN)
  • The work done by GCHQ has the potential to save lives
  • As a civil service department, GCHQ offers a generous benefits scheme.

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