Arno’s OSINT Methodology is an outline of a systematic, planned and structured methodology to do open source research and produce actionable intelligence using the RIS OSINT Intelligence cycle. Simply starting up Google and hammering in one or two randomly chosen keywords is a very common search strategy by many OSINTians. Real OSINT research however is a very tedious process that can only be done when following a strict procedure of structure, planning and working systematically. The RIS OSINT Intelligence Cycle is a graphical display of the entire OSINT production process and will be used as the umbrella process to explain the Delphi OSINT Wheel. Each logical step in the OSINT process will be explained in context with the other steps.

Learning Objectives

  • Grasp concepts of The RIS OSINT Intelligence Cycle and Delphi OSINT Wheel
  • Integrate structure and process into OSINT investigations
  • Explore new investigation methodologies for stronger and more efficient investigations and analysis 


Arno H.P. Reuser is an information professional, founder, manager (ret.) of the Open Source Intelligence (OSINT) branch of the Defence Intelligence and Security Service of The Netherlands, and founder and owner of Reuser’s Information Services (2008-present). From 1990 onwards, Arno from the ground up designed and managed the OSINT capability by designing and developing what came to be known as Arno’s OSINT Methodology of systematic, planned and structured research in open sources. It was one of the very first OSINT branches in Europe.

In 2008, Arno founded Reuser’s Information Services to meet the increasing demand for worldwide talks, presentations, consultancy, workshops and training programmes on OSINT, cybersecurity, and SOCMINT. In 2013, Arno resigned from the service to devote his time to his company.

Today, Arno teaches OSINT to a wide variety of customers home and abroad, universities, EU/UN/NATO missions, law enforcement, private sector, (semi) government and academia. Arno speaks at conferences, lectures, writes articles, book chapters, participates in radio interviews, runs several websites, podcasts and conducts OSINT research. Arno was awarded a Golden Candle Award and a Lifetime Award for his work.

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