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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 city hides behind slang, symbols, codes, and multilingual aliases. This post shows how language masks location, why alias awareness matters, and how Boolean and regex uncover Amsterdam’s hidden digital footprint across the open web, social media, and the dark web.

Nico Dekens | dutch_osintguy
3 days ago10 min read


OSINT Analysis Intelligence Report Writing
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 analysis, connecting patterns, interpreting meaning, and shaping evidence into a coherent narrative. Effective reports guide decision-makers with clarity, structure, and purpose, tailored to the audience’s needs.

Nico Dekens | dutch_osintguy
Nov 17, 202511 min read


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 useful.
Black Swans don’t hide, they just look irrelevant until they change everything.
Your dashboard doesn’t need more data.
It needs more doubt.

Nico Dekens | dutch_osintguy
Nov 4, 202513 min read


Beyond Dashboards: OSINT’s Next Two Decades
Explore the future of OSINT with AI as we delve into the next two decades of advancements. Discover how OSINT and AI will redefine tradecraft.

Nico Dekens | dutch_osintguy
Sep 29, 20259 min read


The Slow Collapse of 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’re trusting GenAI to do the heavy cognitive lifting, and it’s changing how we operate at a foundational level.

Nico Dekens | dutch_osintguy
Apr 2, 202510 min read


Using AI for extracting Usernames, Emails, Phone Numbers, and Personal Names from large datasets
Extracting relevant information from large blobs of text, such as text files, PDFs, Excel spreadsheets, JSON files, can be a...

Nico Dekens | dutch_osintguy
Sep 13, 20236 min read
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