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Maritime intelligence, explained
Reports, technical guides, regulatory insights, and analysis from the team behind Theia, covering dark fleets, spoofing, sanctions, and what satellites reveal.
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What Is SAR and Why It Matters for Vessel Detection
Synthetic aperture radar images vessels through cloud and darkness. Learn what SAR is, how it detects ships, and how it…
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What Is RF Detection in Maritime Surveillance
Radio frequency detection locates vessels by the signals they emit. Learn what RF detection is, how it complements imagery, and…
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What Is IUU Fishing
IUU fishing is illegal, unreported, and unregulated fishing that drains ocean resources and evades oversight. Learn what it covers and…
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What Are Flags of Convenience and Flag Hopping
A flag of convenience is a foreign registry a vessel adopts for cost or oversight reasons. Learn what it means,…
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What Is a Vessel of Interest
A vessel of interest is a ship flagged for closer examination based on risk indicators. Learn what triggers the designation…
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GNSS Jamming and Spoofing at Sea
GNSS jamming blinds a vessel’s positioning and spoofing feeds it a false fix. Learn how they differ from AIS spoofing…
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What Is the Shadow Fleet (Dark Fleet)
The shadow fleet is a network of tankers used to move sanctioned cargo outside mainstream oversight. Learn what defines it…
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What Is AIS Spoofing
AIS spoofing is the manipulation of a vessel’s broadcast position or identity. Learn how it works, why vessels do it,…
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What Is Maritime Domain Awareness
Maritime domain awareness is the effective understanding of activity at sea. Learn what it covers, how AIS and imagery combine,…
Featured & Latest
Latest from the team.
Regulatory Insight
Sanctions Evasion at Sea
How dark fleets and ship-to-ship transfers move sanctioned crude past enforcement.
Technical Guide
How Satellite Vessel Detection Works
SAR, optical imagery, and where AIS-only tracking falls short.
Analysis
Tracking Naval Activity with OSINT
Satellite ground truth as the foundation for open-source analysis.
Content Feed
Priority reading.
How to Track Vessels Without AIS
Technical Guide
What Is Maritime Domain Awareness
Explainer
What Is AIS Spoofing
Explainer
AIS vs Satellite Tracking
Analysis
How Satellite Vessel Detection Works
Technical Guide
How to Detect Dark Ships
Technical Guide
Understanding Deceptive Shipping Practices
Regulatory Insight
How to Detect Ship-to-Ship Transfers
Technical Guide
Maritime Domain Awareness Explained
Explainer
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