Dutch_OsintGuy
@dutchosintguy.bsky.social
Dutch guy with Open Source Intelligence & Analysis skills • OSINT • Certified Instructor @SANSInstitute • SVP of Engineering& Chief Innovator @ shadowdragon.io
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...
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...
November 4, 2025 at 10:47 AM
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...
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
October 20, 2025 at 7:32 AM
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
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
September 29, 2025 at 9:52 AM
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
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
This is not true.
After the impact you can clearly see his right hand is empty, NO GUN. #OSINT #CharlieKirk
September 11, 2025 at 9:46 AM
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
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 !
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 !
September 10, 2025 at 9:56 AM
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 !
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...
www.dutchosintguy.com/post/osint-r...
September 5, 2025 at 9:21 AM
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...
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...
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...
August 30, 2025 at 8:09 AM
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...
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...
August 22, 2025 at 9:41 AM
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...
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:
August 18, 2025 at 2:27 PM
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...
Intelligence tradecraft in the digital age | E87
YouTube video by Authentic8
www.youtube.com
August 14, 2025 at 8:34 AM
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
#OSINT #Intelligence
August 10, 2025 at 9:19 AM
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
#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.
Perfect for verifying people, crimes, or old business data.
NewspaperArchive 1700s - 2025 | NewspaperArchive
Search through 16,491 historic newspaper archives to do genealogy and family history. Find obituaries, marriage and birth announcements, and other local and national news for over 9.3 billion people!
newspaperarchive.com
July 6, 2025 at 5:57 PM
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.
Perfect for verifying people, crimes, or old business data.
Great read!
It all started with a Twitter account, some ChatGPT quotes, and someone looking for a good time. This is the breakdown of how a guy convinced Rolling Stone he was the rep for a suddenly popular AI band, Velvet Sundown.
www.bullshithunting.com/p/a-free-osi...
www.bullshithunting.com/p/a-free-osi...
A Free OSINT Lesson: The "Velvet Sundown" Squatter Who Duped the News Media
Andrew Frelon: A fake band manager pretending to manage a band that doesn't exist. How Avant-garde.
www.bullshithunting.com
July 3, 2025 at 4:14 PM
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
June 26, 2025 at 8:10 AM
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.
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.
June 22, 2025 at 3:09 PM
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.
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.
June 21, 2025 at 12:29 PM
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...
• 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...
June 9, 2025 at 9:44 AM
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...
• 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
May 26, 2025 at 12:42 PM
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.
Bonus: We will showcase a BRAND NEW capability exclusive at ISS.
May 23, 2025 at 4:42 PM
@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.
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...
- shadowdragon.io/blog/peer-pr...
Peer Pressure and Heightened Emotional States in OSINT Investigations - ShadowDragon.io
Peer pressure and heightened emotional states play a critical role in OSINT investigations, driving individuals to reveal sensitive information. By analyzing emotional triggers like anger, fear, and e...
shadowdragon.io
May 5, 2025 at 1:48 PM
"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...
- shadowdragon.io/blog/peer-pr...
Monitoring the power #blackouts in Spain and Portugal with ShadowDragon Monitor. Realtime awareness and alerting detect signs of chaos in the cities and huge traffic jams.
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April 28, 2025 at 12:40 PM
Monitoring the power #blackouts in Spain and Portugal with ShadowDragon Monitor. Realtime awareness and alerting detect signs of chaos in the cities and huge traffic jams.
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OSINT techniques for forum and community monitoring involve the systematic collection and analysis of publicly available information from online forums, discussion boards, and digital communities.
Read more here: shadowdragon.io/blog/osint-t...
#OSINT #OSINT4good
Read more here: shadowdragon.io/blog/osint-t...
#OSINT #OSINT4good
April 21, 2025 at 6:20 PM
OSINT techniques for forum and community monitoring involve the systematic collection and analysis of publicly available information from online forums, discussion boards, and digital communities.
Read more here: shadowdragon.io/blog/osint-t...
#OSINT #OSINT4good
Read more here: shadowdragon.io/blog/osint-t...
#OSINT #OSINT4good
ICYMI New blog: The Slow Collapse of Critical Thinking in OSINT due to AI
"OSINT used to be a thinking game. Now it’s becoming a trusting game and that should terrify you."
hashtag#OSINT hashtag#OSINT4good hashtag#AI
Read the blog here: shadowdragon.io/blog/the-slo...
"OSINT used to be a thinking game. Now it’s becoming a trusting game and that should terrify you."
hashtag#OSINT hashtag#OSINT4good hashtag#AI
Read the blog here: shadowdragon.io/blog/the-slo...
April 15, 2025 at 8:58 AM
ICYMI New blog: The Slow Collapse of Critical Thinking in OSINT due to AI
"OSINT used to be a thinking game. Now it’s becoming a trusting game and that should terrify you."
hashtag#OSINT hashtag#OSINT4good hashtag#AI
Read the blog here: shadowdragon.io/blog/the-slo...
"OSINT used to be a thinking game. Now it’s becoming a trusting game and that should terrify you."
hashtag#OSINT hashtag#OSINT4good hashtag#AI
Read the blog here: shadowdragon.io/blog/the-slo...
Tip: Video and audio analysis techniques for #OSINT are methods and processes used to systematically examine and interpret visual and auditory data from publicly available sources.
Read more here: shadowdragon.io/blog/osint-t...
Read more here: shadowdragon.io/blog/osint-t...
April 13, 2025 at 6:36 AM
Tip: Video and audio analysis techniques for #OSINT are methods and processes used to systematically examine and interpret visual and auditory data from publicly available sources.
Read more here: shadowdragon.io/blog/osint-t...
Read more here: shadowdragon.io/blog/osint-t...
Netherlands Secret Service AIVD published a report "A web of hate" - The online hold of extremism and terrorism on minors. Read the PDF report here: english.aivd.nl/publications...
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A web of hate: The online hold of extremism and terrorism on minors
The AIVD sees that minors can increasingly pose a terrorist threat, mainly as part of jihadism and right-wing terrorism.
english.aivd.nl
April 7, 2025 at 4:12 PM
Netherlands Secret Service AIVD published a report "A web of hate" - The online hold of extremism and terrorism on minors. Read the PDF report here: english.aivd.nl/publications...
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