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.

Overhead view of a busy indoor public space with numerous people walking across a large tiled floor.
Overhead view of a busy indoor public space with numerous people walking across a large tiled floor.
Man outside house
Man looking at CV with laptop in background

Information For

Academia
CNI & Industry
Emerging Technology
Government & Public Sector
High-Risk Individuals
Leaders & Executives
Security Professionals
Venues, Events & Public Spaces

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
Catalogue of Security Equipment (CSE)
Featured Guidance

The Catalogue of Security Equipment (CSE) is available to help security practitioners to identify appropriate physical security equipment

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

Threat & Risk Management

What is Protective Security?
National Security Threats
Threat Methodology Introduction
Protective Security Risk Management (PSRM)