Dutch_OsintGuy
@dutchosintguy.bsky.social
Dutch guy with Open Source Intelligence & Analysis skills • OSINT • Certified Instructor @SANSInstitute • SVP of Engineering& Chief Innovator @ shadowdragon.io
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
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
November 20, 2025 at 1:30 PM
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
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:
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...
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...
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:
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
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
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.
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.
1/2
1/2
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.
1/2
1/2
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
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...
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."
#OSINT #OSINT4good #AI
Read the blog here: www.dutchosintguy.com/post/the-slo...
"OSINT used to be a thinking game. Now it’s becoming a trusting game and that should terrify you."
#OSINT #OSINT4good #AI
Read the blog here: www.dutchosintguy.com/post/the-slo...
April 2, 2025 at 11:44 AM
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."
#OSINT #OSINT4good #AI
Read the blog here: www.dutchosintguy.com/post/the-slo...
"OSINT used to be a thinking game. Now it’s becoming a trusting game and that should terrify you."
#OSINT #OSINT4good #AI
Read the blog here: www.dutchosintguy.com/post/the-slo...
Was great to give a talk at DEX XL conference again this year about #OSINT and AI. Thanks Politie Nederland for having us again.
@shadowdragonio.bsky.social @sansinstitute.bsky.social #OSINT4good
@shadowdragonio.bsky.social @sansinstitute.bsky.social #OSINT4good
March 26, 2025 at 4:07 PM
Was great to give a talk at DEX XL conference again this year about #OSINT and AI. Thanks Politie Nederland for having us again.
@shadowdragonio.bsky.social @sansinstitute.bsky.social #OSINT4good
@shadowdragonio.bsky.social @sansinstitute.bsky.social #OSINT4good
Some of you know I am a #sneakerhead 👟that likes to collect rare and special sneakers.
Horizon Investigate uncovers the identities counterfeiters desperately want to keep hidden—turning anonymous profiles into actionable intelligence.
shadowdragon.io
#ShadowDragon #BrandProtection #OSINT
Horizon Investigate uncovers the identities counterfeiters desperately want to keep hidden—turning anonymous profiles into actionable intelligence.
shadowdragon.io
#ShadowDragon #BrandProtection #OSINT
March 19, 2025 at 1:24 PM
Some of you know I am a #sneakerhead 👟that likes to collect rare and special sneakers.
Horizon Investigate uncovers the identities counterfeiters desperately want to keep hidden—turning anonymous profiles into actionable intelligence.
shadowdragon.io
#ShadowDragon #BrandProtection #OSINT
Horizon Investigate uncovers the identities counterfeiters desperately want to keep hidden—turning anonymous profiles into actionable intelligence.
shadowdragon.io
#ShadowDragon #BrandProtection #OSINT
Enjoying day 2 at the SANS Institute #OSINTsummit. Now live Iris Yuning Ye with her talk about the role of crowdsourced intelligence within #OSINT
February 25, 2025 at 3:33 PM
Enjoying day 2 at the SANS Institute #OSINTsummit. Now live Iris Yuning Ye with her talk about the role of crowdsourced intelligence within #OSINT
Day 1 of the SANS Institute #OSINTsummit is about to start! Excited to see a sold out full house with awesome talks and workshops #OSINT
February 24, 2025 at 1:58 PM
Day 1 of the SANS Institute #OSINTsummit is about to start! Excited to see a sold out full house with awesome talks and workshops #OSINT
Come see the ShadowDragon crew at SANS OSINT Summit 2025 with Nico "Dutch OSINT Guy" Dekens, one of the masters of ceremony, and David Wells who is speaking at the event, February 24-25 in Crystal City.
Reach out for a demo or trial license, here: hubs.la/Q037tXXn0
#OSINTforGood
Reach out for a demo or trial license, here: hubs.la/Q037tXXn0
#OSINTforGood
February 20, 2025 at 1:23 PM
Come see the ShadowDragon crew at SANS OSINT Summit 2025 with Nico "Dutch OSINT Guy" Dekens, one of the masters of ceremony, and David Wells who is speaking at the event, February 24-25 in Crystal City.
Reach out for a demo or trial license, here: hubs.la/Q037tXXn0
#OSINTforGood
Reach out for a demo or trial license, here: hubs.la/Q037tXXn0
#OSINTforGood
Tip: Did you now you can search archived #telegram information in the #waybackmachine ? #OSINT
Try it here: web.archive.org/collection-s...
Try it here: web.archive.org/collection-s...
February 19, 2025 at 12:12 PM
Tip: Did you now you can search archived #telegram information in the #waybackmachine ? #OSINT
Try it here: web.archive.org/collection-s...
Try it here: web.archive.org/collection-s...
