Nico Dekens
Certified InstructorOwner at Dutch Osint Guy Intelligence Services
Specialities
Open-Source Intelligence

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Nico Dekens—known worldwide as Dutch OsintGuy—is one of the most recognized practitioners and educators in open-source intelligence, thanks to his contributions to the global OSINT community through training, mentorship, and investigative innovation. Nico Dekens, known worldwide as Dutch OsintGuy, is one of the most recognized practitioners and educators in open-source intelligence, thanks to his contributions to the global OSINT community through training, mentorship, and investigative innovation.
Nico’s career began with the Dutch National Police, where he spent more than 20 years as an intelligence analyst and detective investigating homicide, organized crime, and online extremist networks. These cases revealed the importance of open-source information long before OSINT became mainstream and sparked his lifelong commitment to using data for good. Later, as Senior Project Manager at Bellingcat, he applied those lessons to international investigations that combined public data, verification, and digital forensics. Today, as Senior Vice President of Engineering and Chief Innovator at ShadowDragon, he leads research and innovation that help global organizations and governments identify and counter emerging threats.
Nico holds the GIAC Open-Source Intelligence (GOSI) certification and serves as a faculty member of the SANS Technology Institute, an NSA Center of Academic Excellence in Cyber Defense and multi-year winner of the National Cyber League competition. He also serves on the Advisory Committee for FORESIGHT Reports, supporting research into intelligence, technology, and ethics. As Co-Founder and Vice President of The OSINT Curious Project, he helped build one of the most influential educational platforms in the OSINT community.
In the classroom, Nico emphasizes process over tools, encouraging learners to question, verify, and interpret information with precision and responsibility. His clarity, humor, and practical approach make complex concepts accessible and relevant to professionals at every level. Outside of work, he explores emerging technology, collects sneakers, and enjoys time with family, reminders that curiosity and balance are essential to building not just skilled analysts, but resilient ones.
Nico is one of the best. His pacing and presentation skills are eclipsed only by his incredible knowledge of the tradecraft.
Nico Dekens is awesome and very knowledgeable.
[Nico] is very knowledgeable and presents the information very well.
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Join us for an exclusive webcast as we reveal the brand-new SANS OSINT Poster, hosted by SANS Senior Instructor and OSINT expert Matt Edmondson.

Step into a world where cutting-edge defense meets practicality in cybersecurity! "SANS Secure Your Fortress" will teach you how to master the latest and most effective defense techniques. Whether you're a seasoned expert or just beginning your cyber journey, this event is for you.

ในการบรรยายนี้ Nico Dekens จะแนะนำขั้นตอนการตรวจสอบข้อมูล online ที่บิดเบือน และเทคนิคการตรวจสอบและยืนยันข้อมูลใน OSINT (Open-Source Intelligence)

In this talk Nico Dekens will step through the prolific disinformation propagating online and develop techniques for validation & verification in the OSINT environment.

Review relevant educational resources made with contribution from this instructor.