National Protective Security Authority

We are the National Technical Authority for physical and personnel security. As part of the Security Service, MI5, we make the UK more resilient to terrorism and state threats.

Security camera
Security camera
office
Man attacking home
calculator and graphs on table

Information For

CNI & Industry
Government & Public Sector
Leaders & Executives
High-Risk Individuals
Security Professionals
Venues, Events & Public Spaces
Trusted Research
Featured Guidance
Learn more about the risks associated with international collaboration and how to protect your research.

Protection From

NPSA's risk based guidance, covering: vehicles & drones, insider risk, sabotage, unauthorised entry, hostile reconnaissance, digital risk, explosives & weapons, intellectual property, fire & arson, democratic interference and CBRN

Protection From

Threat & Risk Management

What is Protective Security?
National Security Threats
Protective Security Risk Management (PSRM)
Passport to Good Security
Secure Innovation
Featured Guidance

Secure Innovation, navigating the emerging technology landscape securely. This is a joint campaign between NPSA and NCSC.

Explore all guidance

NPSA’s advice and guidance covers a broad range of protective security topics. By using the filters on the All Guidance Articles page, you can tailor what articles you see for your specific security requirements.

Explore all guidance