The OSINT Newsletter - Issue #76
Investigating Public Records for OSINT - Companies House
👋 Welcome to the 76nd issue of The OSINT Newsletter. This issue contains OSINT news, community posts, tactics, techniques, and tools to help you become a better investigator. Here’s an overview of what’s in this issue:
Investigating land conflicts in South Asia
Building a lasting OSINT capability
SIGINT vs. OSINT
Instagram monitoring OSINT tool
Open source dataset for IP addresses
Free file search engine
🪃 If you missed the last newsletter, here’s a link to catch up.
⚡ Investigating Public Records for OSINT - United States Patent and Trademark Office (USPTO)
Let’s get started. ⬇️
OSINT News
📰 Guide to Investigating Land Conflicts in South Asia
Land conflicts in South Asia can be investigated using OSINT tools like satellite imagery, cadastral maps, and court records. These sources help uncover land grabs, government misuse, and displacement of vulnerable communities.
"Most governments have now started to digitize land records — ownership deeds, surveys, transaction details — and have started making available the details of land ownership and land transactions online."🎩 H/T: Kumar Sambhav Shrivastava
📰 The Real Work of Building Enduring OSINT Capability
Building lasting OSINT capability isn’t just about tools—it’s about people, tradecraft, and adapting to tech like AI without losing the human edge. The 2025 Australian OSINT Symposium dives deep into how to future-proof your OSINT practice.
“Capability isn’t just what you have. It’s what you continue to develop.”🎩 H/T: Jane van Tienen
📰 Is there SIGINT in OSINT?
Claiming SIGINT exists inside OSINT—like calling social media behavior “behavioral SIGINT”—is wrong and risky. SIGINT is secret signal interception; OSINT is public info only. Mixing them blurs lines, risks legality, and weakens OSINT’s true power.
“Misusing the term SIGINT to describe public signal behavior not only introduces conceptual errors but also risks undermining legal and ethical standards.”🎩 H/T: MJ Banias
OSINT Tools
🔎 instagram_monitor
instagram_monitor is an OSINT tool for real-time tracking of Instagram users’ activities and profile changes. It supports anonymous downloads, email alerts, and saves data for both public and private accounts.
🎩 H/T: misiektoja
🔎 p2pblocklists
This project maps over 2.6 billion public IPv4 addresses to their associated countries, providers, and organizations using OSINT data. The resulting files enable detailed IP filtering and lookup for network security, firewall rules, OSINT, and access control purposes.
🎩 H/T: f1lby
🔎 FilePursuit
FilePursuit is a file search engine that helps users find specific files on web servers by indexing freely accessible resources. It doesn’t host content but offers a user-friendly way to quickly search millions of files across the internet.
⭐ Sockpuppet.io
SockPuppet delivers secure, isolated environments with persistent virtual desktops and phones, real carrier-based SMS for OTPs, and residential IP connectivity—selectable from hundreds of locations. All accessible through a simple web interface that scales as your investigations grow.
✅ That’s it for the free version of The OSINT Newsletter. Consider upgrading to a paid subscription to support this publication and independent research.
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⚡ Investigating Public Records for OSINT - Companies House
Companies House is the UK’s official company register, providing public access to company details, filing history, and key people, making it a valuable tool for OSINT investigations.
👀 All paid posts in the archive. Go back and see what you’ve missed!
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