Intelligence On Chain
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OSInt & Blockchain Investigations for individuals, communities and organisations

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MOST PEOPLE THINK SCAMS ARE OBVIOUS.
They’re not!

I sat down with Jesse Gossman - an 18-year Detective specialising in economic crime - and what he revealed about crypto-related crime is honestly eye-opening.

We talk about:
🔍 The early days of crypto crime (and how unprepared everyone was)
💰 What really goes on inside $1M+ cases
🧠 The psychology behind social engineering
🚨 Why today’s scammers are more calculated than ever

Coming out this week. Subscribe on YT: https://www.youtube.com/@intelligenceonchain
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GET ACCESS TO SPECTRA BASIC WITH 80% OFF
Use code SPECTRA80, when subscribing to Spectra here - https://spectra.intelligenceonchain.com/

That's access for less than £2 👀

Limited to 20 people only. Learn more here: https://www.youtube.com/watch?v=m1qiavr-FBM

Enjoy
TRACING CRYPTO LAUNDERING NETWORKS: A PRACTICAL CASE STUDY

We’ve just released the latest Crypto Tracing Challenge solution, focused on identifying and deconstructing a laundering network operating through privacy infrastructure.

This case study demonstrates how two seemingly isolated transactions can be used as entry points to uncover a broader laundering ecosystem. By applying structured tracing methodologies, it becomes possible to map flows across multiple layers, including mixers and automated exchange services.

February Crypto Tracing Challenge

The analysis begins with two Ethereum transactions withdrawn from Tornado Cash:

0xddbedd32fbfc469328986d6c2d2aea76d6506a285acf027928a5a1e0020fc6ba
0xfedade8c27e3f0c13464254b174d105a5fd1edd1a6e8e05b5b85cbf493a51385

From these starting points, the objective is to identify the full laundering pathway.

Key Investigative Questions

What is the total volume (in ETH) withdrawn from Tornado Cash across the entire laundering flow?
How many deposit addresses are utilized to move funds through automated, non-custodial instant exchanges?

This challenge is designed to reflect real-world investigative scenarios, requiring a combination of blockchain analytics, pattern recognition, and financial reasoning.

For professionals working in financial crime investigations, litigation, asset recovery, or forensic accounting, this exercise offers a practical opportunity to sharpen tracing techniques in a controlled environment.

Interested in participating in future challenges?

You can join via The Bureau (accessible through our Linktree), complete verification, and assign yourself the challenge role.

If you require assistance, support is available via ticket.
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🔍 MARCH CRYPTO TRACING CHALLENGE – FINAL CALL

The deadline is approaching quickly:
📅 31 March 2026 at 23:59 UK time
Simply, drop a comment 💬 below to join! ⬇️

📝 DETAILS
If you’re looking to sharpen your crypto tracing skills in a practical, hands-on way, this is your last opportunity to take part in this month’s challenge.

This isn’t just about getting the “right answer”.
It’s about:
- Building a defensible tracing methodology
- Practising evidence-based analysis
- Developing confidence in manual tracing (not just tool reliance)

🎥 LIVE SOLUTION SESSION
I’ll be hosting a live teaching session where we walk through the full solution:
📅 Friday, 3 April 2026
🕙 10pm UK | 5pm EST

If you’re serious about improving your crypto investigation skills, this is exactly the kind of practice that makes the difference

See you in the challenge.
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We’re rethinking our entire model - and I’d really value your input.

For a long time, people have come to us for help with serious, often difficult situations. And like many services in this space, we’ve charged for that work.

But the more we’ve done it, the more something hasn’t sat right:

The people who need help the most are often the ones least able to afford it.

So we’re exploring a different approach.

👉 What if investigations were free for victims
👉 And instead funded by the community - through courses, memberships, and shared knowledge?

The idea is simple:
Those who can contribute, make it possible for those who can’t.

But this only works if it’s built with the community - not just for it.

So before we move forward, I want to open this up:

• Would you support a model like this?
• What would make a membership or course genuinely valuable to you?
• What would you want to see in return for supporting real investigations?

And there’s one more thing.

If we do this properly, it feels like more than just a pricing change - it feels like a new chapter.

So I’m considering renaming the business to reflect that shift.

For those who choose to contribute early (whether through feedback, ideas, or early support), I’d love to open up the opportunity for you to help shape that - potentially even naming it.

This isn’t finalised. It’s something I’ve been thinking about for 5 years, and want to get right!

Appreciate any thoughts, ideas, or even challenges to this. 👇

Submit your response: https://docs.google.com/forms/d/e/1FAIpQLSfoalUFtMhzgxft2ELlDQFd-hK3QVJdlh4WGUjmjK_4mubAFA/viewform?usp=header
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Intelligence On Chain pinned «There is a drainer campaign active - Some of the accounts are multiple years old. Please share/comment on the X post: https://x.com/rugpullfinder/status/2050125995835838906?s=20»
It's seems to be a series of seed phrase compromises.

You can see here the connection between all victims form. One victim 'JasonBTC888' (shown in yellow) had up to 16 wallets drained!

Attacker in red in the middle