The Centre for the Protection of National Infrastructure (CPNI) has evolved to become the National Protective Security Authority (NPSA).
The NPSA has a broader remit, reflecting the fact that the threats the UK faces today extend far beyond critical national infrastructure. NPSA is a part of the Security Service, MI5.
The NPSA is the UK’s National Technical Authority for physical and personnel protective security, maintaining our expertise in counter terrorism as well as state threats. It works alongside the NCSC and the UK National Authority for Counter Eavesdropping.
It’s purpose is to help organisations understand the range of threats they and the UK face.
Further details are available on the NPSA website at National Protective Security Authority | NPSA