
Who we are
As a global leader in security risk management principles, UNDSS is responsible for providing leadership, operational support and oversight of the United Nations security management system (UNSMS) worldwide. Present in 131 countries where UN operates, UNDSS enables the safe and effective delivery of United Nations programmes and activities in the most complex and challenging environments, while maximizing resources.
Our Mission
We enable United Nations system operations through trusted security leadership and solutions.
Our Vision
Security for the UN, for a better world.
Understanding UN Security
The United Nations Security Management System (UNSMS) enables the activities of UNSMS organizations within acceptable levels of security risk. The UNSMS unites over 50 member organizations, with a primary objective of facilitating the operations of these entities while maintaining an acceptable level of security. Fifteen of these members serve as key decision-makers within the Inter-Agency Security Management Network (IASMN), which is an integral part of the UNSMS. Within this framework, the UNSMS plays a pivotal role in guiding, supporting, and acting as recipients of the UN Department of Safety and Security (UNDSS) services.
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UNDSS marked a significant milestone in international security cooperation with the successful delivery of the first Revised Close Protection Officer Certification (RCPOC) course hosted by the Internal Security Force (ISF) – Lekhwiya of the State of Qatar...

As more than 70 countries prepare for national elections in 2026 — many in regions where voting day can trigger violence — Myanmar's experience offers a case study in how international organizations can maintain operations when the ground is shifting beneath them. Read more
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Behind Every UN Operation
United Nations Security Explained 2
