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The Signal
The Signal index, latest dispatches
Shadow Analysis
Forensic dossiers and OSINT investigations
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Methods, tools, and workflows by domain
Methods
OSINT methodology and frameworks
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AI techniques for OSINT investigations
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Step-by-step OSINT guides
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All Posts
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Jul 1, 2026
The eight-step workflow for classifying AIS gaps, testing for spoofing, and documenting findings to evidentiary standard
Geospatial & Satellite
Inventory visual features, query satellite and street-level imagery, and triangulate a confirmed coordinate using Google Earth Pro, SunCalc and Mapillary
A structured self-audit before someone else does it for you. Map your exposed footprint, build the remediation list, set the six-month re-run cadence
The psychological disciplines that keep your judgement sharp and your practice intact across months of difficult material
How to apply Article 6 lawful basis logic to OSINT collection, use the journalism exemption correctly, and know when to stop
Reconstruct a collision, grounding, or sinking from IMO casualty filings, AIS replay, port state records, and meteorological archives
How to build, visualise and interrogate relationship graphs for OSINT investigations using open-source and community transforms
Apply a substitution table, confidence tiers and attribution rules to every draft before it goes out. Standards hold up in legal and editorial review
OPSEC
Configure Signal, Mullvad and ProtonMail, separate investigative hardware, and document sessions to chain-of-custody standard
