The Institute of Information Security Professionals (IISP) is a not-for-profit organisation, owned by its members and dedicated to raising the standard of professionalism in information security and the industry as a whole. The IISP does this through accrediting skills and competence, by sharing best practice and by providing a network of support and guidance on individual skill development. It speaks with an authoritative voice and its competency-based memberships are widely recognised in the information security industry.

The IISP has a growing membership across private and government sectors. At the heart of the Institute is the IISP Skills Framework©2015 which is widely accepted as the de facto standard for measuring competency of Information Security Professionals. It is widely used by IISP Corporate members to benchmark and develop security information capability with their organisations. CESG have taken this Framework to underpin their Certified Professional Scheme (CCP), for which the IISP is the leading certifying body.