I'm excited to announce I'll be speaking at @defcon.bsky.social #ReconVillage this August! My talk, "OSINT Is Still a Thinking Game," explores how AI dependence is eroding our tradecraft - and how to fight back. See you in Vegas. #DEFCON34 #ReconVillage #OSINT #CyberSecurity

Taking the new biscuit pro for a (war)drive. Wifi / BLE sniffing is a highly overlooked technique within #osint research and investigations. Nerds gonna nerd 😎

The @SANSInstitute #OSINT summit #Amsterdam is about to get started and sold out. Day 1 workshops, day 2 talks. I’ll be having a ton of fun chairing this together with Matt Edmondson. Looking forward to see old friends and make a bunch of new friends.

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

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...

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...

🚨 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...

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...

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.

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...

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-...

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

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 san.com/cc/twitter-r...

ICYMI 👇

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 👇

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 👇

🚨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...

🧵 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...

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...

#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...

This is why I love working for @ShadowDragonIO. We build #OSINT capabilities that help uncover real world criminals. This use case started with one FBI Most wanted page: www.fbi.gov/wanted/cyber... Park Jin HYOK is wanted by the FBI for his role as a hacker for #DPRK. 1/3

New blog: Discover the art of report writing in #OSINT. Learn how effective report writing transforms data into actionable insights. Read the blog here: www.dutchosintguy.com/post/osint-a...

New Blog: Fatigue is the invisible corruption of intelligence work. It dulls intuition, erodes skepticism, and makes analysts trust tools more than their own reasoning. #OSINT doesn’t fail when data runs out. It fails when curiosity does. Read: www.dutchosintguy.com/post/black-s...

Tip: Space #OSINT ✨🛰️📡 KeepTrack Space is a free, open-source web tool for visualizing and analysing objects in Earth orbit (satellites, debris, launches & more) app.keeptrack.space

New blog: Beyond Dashboards: OSINT’s Next Two Decades Explore the future of OSINT with AI as I (try to) delve into the next two decades of advancements. Discover how OSINT and AI will redefine tradecraft. www.dutchosintguy.com/post/beyond-... #OSINT #AI #Tradecraft #future

Some people online are claiming that #Kirk was shot up close by a man standing next/close to him. This is not true. After the impact you can clearly see his right hand is empty, NO GUN. #OSINT #CharlieKirk

Morning coffee, skimming the news. This article about the arrest of a serial killer caught my attention : nypost.com/2025/09/08/u... Decided to use our #OSINT enterprise solution @shadowdragonio.bsky.social to see if I could learn about the suspect. Couple of minutes I was able to uncover A LOT !

New Blog: Discover how graffiti serves as modern hieroglyphics in #OSINT. Explore graffiti's role in gang communication and territorial markers today. www.dutchosintguy.com/post/osint-r...

ICYMI ⬇️

New Blog: Most people doing #OSINT aren’t doing OSINT. They’re just Googling with extra steps, screenshotting dashboards, and calling it “intelligence.” That’s not tradecraft. That’s cosplay. Let’s talk about what OSINT is not: www.dutchosintguy.com/post/stop-ca...

Cooking up a new sun and moon shadow-cast calculator for #OSINT investigations. Looking for input for (advanced) features.... anyone? See screenshots of work in progress:

ICYMI: Authentic8 recently invited me on their Needle Stack podcast. We had a great conversation about #OSINT, tradecraft, #AI and more. You can watch/listen here: www.youtube.com/watch?v=BiWU...

Recently a lot of #AI / #LLM models like #ChatGPT 5 #GROK #Claude got updates but after thourough testing my blog is still accurate: shadowdragon.io/blog/the-slo... #OSINT #Intelligence

Tip: Recently I was investigating an old cold case and an old newspaper gave me the breakthrough that helped solved the case. Use newspaperarchive.com (paid) or news.google.com/newspapers (free) for local newspaper #OSINT. Perfect for verifying people, crimes, or old business data.

Great read!

Showcasing the power #OSINT with @shadowdragonio.bsky.social Horizon. Recently a suspect was arrested who has been identified as being the person behind "Intelbroker". 1/2

Quick Note for Media: I’m grateful for the interest DM’s, emails, calls, but I’m not available for comments on #OSINT findings related to conflict zones or war incidents. If I uncover anything important, I’ll share it with the proper authorities — not publicly. Thanks for understanding.

Had a great week teaching the 6 day SANS Institute SEC497 #OSINT course. The teams performed extremely well during the final CTF and one was the clear winner of the challenge coin.

At ShadowDragon we listen to our customers. This is why we have built Horizon Identity. • Simplifies complex identity investigations • Uncovers connections that manual #OSINT can miss • No scraping, no guesswork—just clarity Ask for a demo or learn more here: shadowdragon.io/horizon-iden...

Recently the German Bundeskriminalamt and Europol put Maksim Sergeevich GALOCHKIN on the most wanted list for being part of the #trickbot / #wizardspider malware hacking group. With @shadowdragonio.bsky.social it's #OSINT capabillities I was able to find A LOT if information about him. #OSINT4good

@shadowdragonio.bsky.social will be at ISS World Prague in full force. Come visit us and receive a tailored demonstration of our advanced link-analysis, real-time PAI collection, or #OSINT products. Bonus: We will showcase a BRAND NEW capability exclusive at ISS.

"I like to consider the internet as a emotional battleground. Let’s be honest we live in a very polarised world where people can easily express their opinions and more on numerous platforms." - shadowdragon.io/blog/peer-pr...