The National Protective Security Authority (NPSA) is the UK’s National Technical Authority for physical and personnel protective security, maintaining expertise in counter terrorism as well as state threats. NPSA is the protective security arm of MI5. It’s a distinct entity, but benefits from access to MI5’s expertise and understanding of the threat.2 NPSA helps organisations understand the range of threats they and the UK face, for example from terrorism, espionage, and state actors, and importantly what they can do to minimise their risk through how they operate day to day. NPSA provide and develop content and guidance that is more accessible to those with no or limited security background, alongside advice for security professionals and technical experts. More information...
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