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    Find out more about MI5’s mission and core values; our people who work to keep the country safe; and our rich and varied history.

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    Our headquarters, Thames House, in central London is a Grade II listed building in Westminster, not far from the Houses of Parliament.

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    Find out about the core threats to national security that MI5 exists to protect against. 

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    The National Protective Security Authority (NPSA) is part of MI5 and offers advice to businesses and organisations to help keep them and their customers safe from a range of national security threats.

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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 national security threats.

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Security advice

The National Protective Security Authority (NPSA) is part of MI5 and offers advice to businesses and organisations to help keep them and their customers safe from a range of national security threats.

Find out more about the NPSA

 

Latest News

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MI5 publishes pay gap report for 2023

MI5, SIS and GCHQ publish pay gap reports. Source link

Mull of Kintyre 30th anniversary

Yesterday marked 30 years since the Mull of Kintyre helicopter crash, in which 29 people lost their lives including four members of MI5. Source link

Director General Ken McCallum gives threat update

MI5 Director General Ken McCallum gave his annual threat update at our headquarters in Thames House, London today. Source link

Director General Ken McCallum gives latest threat update

MI5 Director General Ken McCallum has delivered his latest update on the current national security threats facing the UK. Source link

Five Eyes launch shared security advice campaign for tech startups

Members of the Five Eyes intelligence partnership have launched shared security guidance to help protect emerging technology companies from a range of threats, particularly those

New MI5 Badge for His Majesty the King

MI5 has made a small change to its Badge to reflect the symbols of state chosen by His Majesty King Charles. Source link

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