Dutch_OsintGuy

Look forward to be hosting the SANS Institute #OSINT summit in #Amsterdam 🇳🇱with Matt Edmondson Steven Harris June 15-16

More info and call for talks will be announced soon!

www.sans.org/cyber-securi...

‘Twitter randos’ are tracking US military flights. Why that creates a security risk U.S. Air Force officials warn that public flight tracking by OSINT analysts poses a direct threat to military operational security worldwide.

‘Twitter randos’ are tracking US military flights. Why that creates a security risk san.com/cc/twitter-r...

ICYMI 👇

Critical Thinking Collapse 2.0: AI’s Impact on OSINT AI isn’t just speeding up OSINT - it’s reshaping what investigators and leaders believe is true. As hallucinations, data poisoning, and AI-generated narratives flood the information space, critical th...

New Blog:
AI isn’t just supporting OSINT — it’s distorting it.
Hallucinations, poisoned data, synthetic narratives… and leadership often can’t see it happening.

My new blog digs into this shift with examples, risks, and what must change.

📘 Read here: www.dutchosintguy.com/post/critica...

New Blog:
More OSINT tools.
More dashboards.
Less actual reasoning.

AI didn’t break OSINT, it revealed a problem that was already there.
OSINT is still a thinking game. Read it here: www.dutchosintguy.com/post/osint-i...

ICYMI 👇

Just followed you back

New Blog:
OSINT isn’t getting harder because investigators lack tools.

It’s getting harder because the internet is becoming adversarial:
disappearing data, closed platforms, AI deception.

The next phase of #OSINT will be about judgment, not dashboards.

www.dutchosintguy.com/post/the-nex...

ICYMI 👇

Thank you !

OSINT - Cities with hundreds of names | How OSINT investigators miss hidden clues You think you know Amsterdam? You don’t. Even if you’re born and raised there. For OSINT investigators, analysts, and journalists, searching only for “Amsterdam” means missing half the signal. The cit...

🚨New blog:

A city is not a word.
It’s a language system.

When people say “020,” “Mokum,” or “Freedom City,”
they’re still talking about Amsterdam
just not in a way your #OSINT investigation understands.

Imagine how many you’re missing.

Read the blog here: www.dutchosintguy.com/post/how-osi...

Discover Expert OSINT Insights and Raw Data Analysis with Dutch Osint Guy Explore raw data analysis solutions with Dutch Osint Guy, offering actionable insights and training for Open-Source Intelligence.

14/14 — Final thought
If 2025 taught me one thing:

Automation amplifies thinking — good or bad.

📚 All blogs: www.dutchosintguy.com/blog

Question:
👉 What’s the bigger risk right now — not enough data, or not enough thinking about it?

What OSINT Really Is - And Why AI Keeps Getting It Wrong OSINT isn’t about collecting public data, AI already does that better than humans. OSINT is about pressure-testing reality. In digital investigations, organisational security, and business risk, OSINT...

13/14 — The synthesis
🧠 What OSINT Really Is — And Why AI Keeps Getting It Wrong
www.dutchosintguy.com/post/what-os...

Truth: OSINT is disciplined curiosity — with consequences.

THE ALGORITHMIC ANXIETY MACHINE | You can expose the social media algorithm dangers with OSINT If you want to know why teens feel broken, watch a fresh account for thirty minutes. It starts with jokes and ends in panic attacks, body shame, and self-diagnosis. Kids aren’t searching for this. The...

12/14 — Algorithms, radicalization & harm

www.dutchosintguy.com/post/the-alg...
www.dutchosintguy.com/post/the-kid...

Risk: Algorithms can accelerate paths toward extremism, terrorism, and crime.
Takeaway: OSINT can spot trajectories before violence starts.

11/14 — OSINT is about people
🧑‍🤝‍🧑 When HUMINT Forgot the Internet
www.dutchosintguy.com/post/when-hu...

Risk: Digital and human intelligence drift apart.
Takeaway: OSINT is human intelligence at scale.

10/14 — Careers & reality checks
🎓 Practical Steps to Secure a Job in OSINT
www.dutchosintguy.com/post/practic...

Risk: We train tool users for thinking roles.
Takeaway: Employers need judgment, not button-pushing.

9/14 — Data isn’t insight
📂 Unlocking the Potential of Raw Data Analysis
www.dutchosintguy.com/post/unlocki...

Risk: Volume replaces reasoning.
Takeaway: Data becomes intelligence only after interpretation.

OSINT Analysis Intelligence Reporting: Mastering Report Writing Skills Intelligence reports turn raw OSINT data into actionable insight. After two decades in the field, one lesson stands out: collection means nothing without clear communication. The real value lies in an...

8/14 — Analysis only matters if it’s usable
📝 OSINT Analysis: Intelligence Report Writing
www.dutchosintguy.com/post/osint-a...

Risk: Good analysis dies in poor reporting.
Takeaway: If it doesn’t support a decision, it’s not intelligence.

Black Swans in OSINT: Why We Keep Missing the Impossible The biggest threat in OSINT isn’t lack of data. It’s ego. The moment you think you understand the dataset, you stop learning from it. The moment you think you can’t be surprised, you stop being usef...

7/14 — Why we miss what matters
🦢 Black Swans in OSINT
www.dutchosintguy.com/post/black-s...

Risk: Assumptions blind us more than missing data.
Takeaway: Most OSINT failures are cognitive.

6/14 — Dashboards don’t think
📊 Beyond the Dashboard to OSINT
www.dutchosintguy.com/post/beyond-...

Risk: Automation boosts confidence, not understanding.
Takeaway: Intelligence starts after the dashboard.

5/14 — Context is disappearing
🧱 OSINT Is Reading the Walls
www.dutchosintguy.com/post/osint-i...

Risk: Facts without context create confident mistakes.
Takeaway: Data tells you what. Context explains why.

Stop Calling It OSINT A field rant about shortcuts, ego, and other creative ways to waste everyone’s timeLet’s just say the quiet part out loud: most of what’s sold as “OSINT” online is cosplay. It’s people screenshotting ...

4/14 — We’re diluting OSINT
🧭 Stop Calling It OSINT
www.dutchosintguy.com/post/stop-ca...

Risk: Collection + dashboards get mistaken for intelligence.
Takeaway: Intelligence theater convinces… until it fails

Critical Thinking in OSINT due to AI This isn’t a rant against AI. I use it daily, ChatGPT, Copilot, Claude, Gemini. They’re in my workflow like everyone else’s. But the tradecraft is slipping. Analysts are skipping the hard parts. They’...

3/14 — Critical thinking is eroding
🧠 The Slow Collapse of Critical Thinking in OSINT due to AI
www.dutchosintguy.com/post/the-slo...

Risk: AI removes friction — and friction is where thinking happens.
Takeaway: Faster OSINT can quietly become fragile OSINT.

2/14
More dashboards.
More automation.
More “AI-powered OSINT.”

And yet…
👉 stronger confidence
👉 weaker conclusions

That contradiction shaped everything I wrote in 2025.

🧵 1/14
2025 wasn’t a writing exercise for me.
It was a warning.

Across every blog I wrote this year, one pattern kept repeating:

OSINT doesn’t fail because we lack data, tools, or AI.
It fails when we stop thinking.

Happy #OSINT holidays to all my followers and friends !

One more companion blog for the one below. Because it is such an important topic :

www.dutchosintguy.com/post/the-kid...

THE ALGORITHMIC ANXIETY MACHINE | You can expose the social media algorithm dangers with OSINT If you want to know why teens feel broken, watch a fresh account for thirty minutes. It starts with jokes and ends in panic attacks, body shame, and self-diagnosis. Kids aren’t searching for this. The...

New Blog: This will be my last blog of 2025. And since we are close to the Xmas holidays kids will probably spend hours scrolling on their phones.
Read the blog here : THE ALGORITHMIC ANXIETY MACHINE | You can expose the social media algorithm dangers with OSINT www.dutchosintguy.com/post/the-alg...

When HUMINT Forgot the Internet: Why Human Intelligence Needs OSINT More Than Ever Human intelligence is powerful, but incomplete without digital validation. Based on real-world investigations, this blog explores why HUMINT operators, law enforcement, and intelligence agencies must ...

#HUMINT is human truth.
#OSINT is digital truth.
Neither makes sense without the other.

I wrote about this in my latest blog. What I’ve seen work, what I’ve seen fail, and why intelligence today is never one discipline alone. www.dutchosintguy.com/post/when-hu...

In under 30 minutes is was able to find and correlate several artefacts directly tied to him:

4 E-mail addresses
7 Aliases

That led to 337 unique datapoints which included:

3 Locations
4 IP-Adresses
2 Phone Numbers

And multiple social network connections.