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“MI5 investigates threats to national security through the gathering of secret intelligence and by working closely with other organisations and government departments. We do this within a strict framework of legislation and oversight to ensure our investigative powers are only used where it is necessary and proportionate to do so.”
Latest News
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MI5 marks LGBT+ History Month 2021
This February, MI5 is proud to be marking LGBT+ History Month with this year's theme being 'Body, Mind,...

MI5 publishes Gender Pay Gap report 2020
MI5, along with SIS and GCHQ, has published its Gender Pay Gap report for 2020.

MI5 celebrates International Women's Day 2021
MI5 is marking International Women's Day with a series of digital events, talks and blogs for staff on this year...