Insider Threat Mitigation
An International Community of Practice
Our international and multi-sector community shares ideas, good practices, and expertise to understand and mitigate insider threat to international nuclear security. In doing so, we provide resources, host events, and gather for an international symposium every three years.
Over 30 nations participate in our community of practice.

Second International Symposium on Insider Threat Mitigation
In March 2024, Belgium and the United States co-hosted the Second International Symposium on Insider Threat Mitigation. Experts from around the world presented on current and emerging issues relevant to nuclear or other radioactive material security and insider threat mitigation and delivered expertise from related industries and active academic research. To advance the core tenants of IAEA INFCIRC/908 and Revision 1, the Advancing INFCIRC/908 “Mitigating Insider Threats” International Working Group aims to build a community of practice to share lessons learned and exchange best practices.
Advancing Nuclear Security
Insiders pose a significant threat to nuclear security because they generally possess access rights which, together with their authority and knowledge, grant them far greater opportunity than outsiders to bypass dedicated nuclear security measures.

Mitigating Insider Threats
At the 2016 Nuclear Security Summit, the U.S. sponsored a Joint Statement on Mitigating Insider Threats, which was also issued as IAEA Information Circular 908 (INFCIRC/908). Since then, dozens of countries have endorsed the Joint Statement and are advancing the state-of-practice of mitigating insider threats for nuclear security.
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