Dutch guy with Open Source Intelligence & Analysis skills • OSINT • Certified Instructor @SANSInstitute • SVP of Engineering& Chief Innovator @ shadowdragon.io
Dutch_OsintGuy
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OSINT is changing fast: AI, disinfo infrastructure, closed platforms, leaked data, propaganda, and analytical error.
I’ll be hosting the SANS OSINT Amsterdam Summit 2026 with Matt Edmonson.
📍Amsterdam
📅 15–16 June
www.sans.org/cyber-securi...
A horrific #Belfast stabbing shows why responsible OSINT matters.
Starting with one BBC article + basic Google searches, I used ShadowDragon Horizon to map public online signals around the suspect
Not hacking. Not guessing. Just OSINT.
www.bbc.co.uk/news/article...
#OSINT #ShadowDragon
ICYMI ⬇️
I will be presenting the closing keynote at the SANS Amsterdam OSINT Summit, 15–16 June 2026:
OSINT at a Crossroads: Thinking, Judgment, and the Human Edge
This is going to be an awesome event. Full agenda with speakers will be announced soon. www.sans.org/cyber-securi...
🚨 New blog:
The open web is being poisoned by AI slop, synthetic personas, fake context and amplified lies.
Once polluted information becomes searchable, repeated and summarised by AI, it can look like evidence.
Evidence poisoning is the #OSINT is real !
www.dutchosintguy.com/post/evidenc...
AI made it easier to build #OSINT tools.
It did not make them safer to trust.
A tool does not need to crash to mislead you. It only needs to quietly shape what you collect, what you miss, and what you stop questioning.
Read the blog here: www.dutchosintguy.com/post/vibe-co...
My latest blog looks at how people can be spotted online, groomed, moved into closed spaces, and turned into disposable proxies for real-world violence.
From Jewish targets to dissidents, this is about the runway before the fire starts.
www.dutchosintguy.com/post/from-op...
REMINDER ! CFP for the SANS OSINT summit Amsterdam 15-16 june is still open for a few days. I know I have enough folks seeing this that can give awesome talks. Don't be shy and apply 😃 .
If you are hesitant or want help with your CFP feel free to send me a message.
I generated a realistic Amsterdam street with AI.
It does not exist.
Then I asked a new ChatGPT chat to geolocate it.
It confidently named a real street.
Then it found no strong AI tells.
For OSINT, seeing is no longer believing.
Verification is.
Read: www.dutchosintguy.com/post/the-ams...
Shoutout to #networkchuck - his recent video on AI almost making him quit YouTube pushed me to write this.
New blog on #OSINT, cognitive overload, synthetic media, AI dependence, and the slow erosion of human judgment.
Read my blog here: www.dutchosintguy.com/post/ai-may-...
AI can generate a convincing Amsterdam street that never existed, then fail to recognize its own fiction when asked to geolocate it. This experiment shows why visual plausibility is no longer proof. F...
Unlock the full potential of your career with cybersecurity training at SANS OSINT Amsterdam Summit 2026. Guided by world-renowned instructors at the forefront of the field, this event provides exclus...
AI has made it easy for OSINT practitioners to build and install investigative tools. It has not made it safe to trust them. This blog examines the real risk behind vibe coding, viral GitHub apps, and...
www.dutchosintguy.com
Evidence poisoning is the contamination of the open web with synthetic, manipulated or amplified material that later appears useful as investigative evidence. In an age of AI slop, fake personas, recy...
This is not just random extremism. It is a pipeline. From open platforms to closed chats, vulnerable people can be spotted, shaped, tested, and pushed toward real-world violence as disposable proxies....
AI may not replace analysts first. It may break them first. This blog explores how cognitive overload, synthetic media, AI dependence, and algorithmic pressure may erode the human judgment behind OSIN...
This is not just random extremism. It is a pipeline. From open platforms to closed chats, vulnerable people can be spotted, shaped, tested, and pushed toward real-world violence as disposable proxies....
Good news for the OSINT community.
The SANS OSINT Europe Summit 2026 is coming to Amsterdam on 15-16 June 🇳🇱.
And the Call for Papers is now open.
📅 Submit before 23 March 2026
app.smartsheet.com/b/form/019c7...
Let’s push the craft forward.
#OSINT
