www.mi5.gov.uk

• charset: utf-8
• name: description content: MI5's mission is to keep the country safe. For more than a century we have worked to protect the UK from a range of threats, whether it be from terrorism or hostile activity by states.
• name: MobileOptimized content: width
• name: HandheldFriendly content: true
• name: viewport content: width=device-width, initial-scale=1.0
• property: og:title content: Home | MI5 - The Security Service
• property: og:url content: https://www.mi5.gov.uk/home
• property: og:description content: MI5's mission is to keep the country safe. For more than a century we have worked to protect the UK from a range of threats, whether it be from terrorism or hostile activity by states.
• property: og:image content: https://www.mi5.gov.uk/sites/default/files/ta_og_image.png
• property: twitter:card content: summary_large_image
• property: twitter:title content: Home | MI5 - The Security Service
• property: twitter:domain content: https://www.mi5.gov.uk/home
• property: twitter:description content: MI5's mission is to keep the country safe. For more than a century we have worked to protect the UK from a range of threats, whether it be from terrorism or hostile activity by states.
• property: twitter:image content: https://www.mi5.gov.uk/sites/default/files/ta_og_image.png
• name: viewport content: width=device-width, initial-scale=1
• name: referrer content: origin

• Skip to Main Content
• Find out more about terrorism threat levels
• https://www.mi5.gov.uk/
• Open navigation menu
• Close navigation menu
• Centenary History
• http://www.mi5.gov.uk/about-us
• People
• Workforce information
• Director General
• Former Directors General
• Joint Terrorism Analysis Centre
• Joint State Threats Assessment Team
• National Protective Security Authority
• Where we work
• Thames House
• Partnerships
• Cinquefoil Trust
• Purpose and Values
• http://www.mi5.gov.uk/what-we-do
• Countering terrorism
• Countering state threats
• Protective security
• http://www.mi5.gov.uk/how-we-work
• Gathering intelligence
• Interception of communications
• Equipment interference
• Covert surveillance
• Covert Human Intelligence Sources
• Bulk data
• Analysing intelligence
• Law, oversight and ethics
• Evidence and disclosure
• Managing information
• Access to information by members of the public
• Funding
• http://www.mi5.gov.uk/threats-and-advice
• Terrorism threat levels
• Resources and Links
• http://www.mi5.gov.uk/our-history
• MI5's early years
• The establishment of the Secret Service Bureau
• World War I
• Carl Hans Lody
• Between the wars
• The inter-war years
• The Soviet threat between the wars
• World War II
• MI5 in World War II
• The Battle for Gibraltar
• Agent GARBO
• Eddie Chapman - Agent ZIGZAG
• Eric Roberts' undercover work in World War II
• Hitler's last days
• The Cold War
• Bad Nenndorf
• The British Empire and Commonwealth
• Klaus Fuchs
• Portland spy ring
• The 'Wilson Plot'
• The threat of subversion
• The later Cold War
• MI5 in the 1990s and 2000s
• Terrorist threat in the 1980s
• Changes and reforms
• Since the Cold War
• The rise of the Islamist terrorist threat
• MI5 at The National Archives
• Centenary History
• Centenary History Policy on Disclosure
• Is it 'MI5' or the 'Security Service'?
• News
• Careers
• Life at MI5
• School Leavers
• Graduates
• Experienced Hires
• Director General's Statement on Publication of the Kenova Report
• Director General Ken McCallum gives threat update
• Death announced of former MI5 DG Dame Stella Rimington
• Opportunities
• Working At MI5
• FAQs
• Contact
• http://www.mi5.gov.uk/about-mi5
• http://www.mi5.gov.uk/cy/cy-about-mi5
• http://www.mi5.gov.uk/fa/fa-about-mi5
• http://www.mi5.gov.uk/fr/fr-about-mi5
• http://www.mi5.gov.uk/ar/ar-about-mi5
• http://www.mi5.gov.uk/ru/ru-about-mi5
• http://www.mi5.gov.uk/ur/ur-about-mi5
• http://www.mi5.gov.uk/zh-hans/zh-hans-about-mi5
• Cookie Policy
• Accessibility Statement
• Terms and Conditions
• Privacy Notice
• Sitemap
• Cookie Preferences
• http://www.mi5.gov.uk/#mm-3
• http://www.mi5.gov.uk/#mm-13
• http://www.mi5.gov.uk/#mm-15
• http://www.mi5.gov.uk/#mm-21
• History
• http://www.mi5.gov.uk/#mm-23
• http://www.mi5.gov.uk/#mm-1
• http://www.mi5.gov.uk/#mm-5
• http://www.mi5.gov.uk/#mm-7
• http://www.mi5.gov.uk/#mm-9
• http://www.mi5.gov.uk/#mm-11
• http://www.mi5.gov.uk/#mm-17
• http://www.mi5.gov.uk/#mm-19
• http://www.mi5.gov.uk/#mm-25
• http://www.mi5.gov.uk/#mm-27
• http://www.mi5.gov.uk/#mm-29
• http://www.mi5.gov.uk/#mm-31
• http://www.mi5.gov.uk/#mm-33
• http://www.mi5.gov.uk/#mm-35
• http://www.mi5.gov.uk/#mm-36

• National Protective Security Authority
• https://www.sis.gov.uk/index.html
• https://www.gchq.gov.uk

            Domain Name: MI5.GOV.UK
Registrar: Cloud Next Limited
Domain Status: client delete prohibited
Domain Status: client update prohibited
Domain Status: client transfer prohibited
Creation Date: 2001-03-30T11:00:00Z
Updated Date: 2025-09-16T13:44:44Z
Registry Expiry Date: 2027-03-30T11:00:00Z
Name Server: NS-1487.AWSDNS-57.ORG
Name Server: NS-984.AWSDNS-59.NET
Name Server: NS-488.AWSDNS-61.COM
Name Server: NS-1898.AWSDNS-45.CO.UK
REGISTRAR Contact: Cloud Next Limited
REGISTRANT Contact: Security Services
>>> Last update of RDAP database: 2026-05-29T11:26:17Z         

Teknisk SEO

On-Page SEO

Innehåll och UX