The handbook outlines maritime hybrid threats and offers a legal analysis to assist policymakers and maritime operators in understanding potential scenarios.

Military & Paramilitary OperationsConventional Military PressureNaval intimidation / close approaches

Defense

Summary

Published in November 2019, the 'Handbook on Maritime Hybrid Threats' provides a comprehensive analysis of maritime hybrid threats and their implications for international law. The handbook highlights the economic and political consequences of maritime disruptions and categorizes ten potential scenarios to aid policymakers in understanding the legal context of maritime operations. It emphasizes the necessity of adhering to international legal frameworks to avoid unintended escalations. The handbook is meant to inform and prepare EU and NATO institutions against hybrid maritime threats.

Classification

Confidence: High

The document aims to improve understanding and preparation against hybrid threats in maritime contexts.

Source URL

https://hybridcoe.fi/wp-content/uploads/2020/07/NEW_Handbook-on-maritime-threats_RGB.pdf

Open source

Provenance

Publisher: extension
Submitted: Feb 1, 2026, 00:14 UTC
Last updated: Nov 9, 2026, 06:58 UTC
Event time: Nov 1, 2019, 00:00 UTC

Published as a Defense Preparations signal with a public source and reviewer-approved assessment bands. See the methodology for how records are assessed.

Raw record

{
  "id": "8617859c-f108-4541-a3b7-c5145efef1cd",
  "url": "https://hybridcoe.fi/wp-content/uploads/2020/07/NEW_Handbook-on-maritime-threats_RGB.pdf",
  "source": "extension",
  "status": "approved",
  "category": "Military & Paramilitary Operations",
  "subcategory": "Conventional Military Pressure",
  "incident_type": "Naval intimidation / close approaches",
  "country": "Baltic Sea Region",
  "source_reliability": "C",
  "info_credibility": "3",
  "tags": [
    "Hybrid Threats",
    "Maritime Security",
    "Legal Analysis"
  ],
  "nodes": [],
  "countries": [
    "Baltic Sea Region"
  ],
  "where_text": "Maritime",
  "headline": null,
  "description": "This handbook discusses the potential maritime hybrid threats and the legal frameworks surrounding them, emphasizing the importance of understanding vulnerabilities and resilience in maritime operations.",
  "summary_short": "The handbook outlines maritime hybrid threats and offers a legal analysis to assist policymakers and maritime operators in understanding potential scenarios.",
  "summary_extended": "Published in November 2019, the 'Handbook on Maritime Hybrid Threats' provides a comprehensive analysis of maritime hybrid threats and their implications for international law. The handbook highlights the economic and political consequences of maritime disruptions and categorizes ten potential scenarios to aid policymakers in understanding the legal context of maritime operations. It emphasizes the necessity of adhering to international legal frameworks to avoid unintended escalations. The handbook is meant to inform and prepare EU and NATO institutions against hybrid maritime threats.",
  "actor_primary": "Hybrid CoE",
  "target_primary": null,
  "location_text": "Maritime Domain",
  "location_region": "",
  "location_coordinates_lat": null,
  "location_coordinates_lon": null,
  "location_precision": "Unknown",
  "is_aggressor_signal": false,
  "signal_type": "DEFENSE_PREP_SIGNAL",
  "is_hybrid_war_signal": true,
  "classification_complete": true,
  "hybrid_signal_complete": true,
  "classification_confidence": "High",
  "classification_rationale": "The document aims to improve understanding and preparation against hybrid threats in maritime contexts.",
  "event_time_utc": "2019-11-01T00:00:00.000Z",
  "end_time_utc": null,
  "event_time_confidence": "pm24h",
  "created_at": "2026-02-01T00:14:39.140Z",
  "updated_at": "2026-11-09T06:58:21.434Z",
  "reliability_band": "strong",
  "location_precision_band": "unknown",
  "time_precision_band": "within_24h",
  "severity_band": "moderate",
  "attribution_confidence_band": "high",
  "attribution_basis": "single_source"
}

Public assessmentReliability: StrongSeverity: ModerateAttribution: HighSingle sourceTime: Same dayLocation: Unknown

Source reliability

Info credibility

Event time

Nov 1, 2019, 00:00 UTC

Event time confidence

pm24h

Location

Maritime Domain

Primary actor

Hybrid CoE

Country

Baltic Sea Region

Countries

Baltic Sea Region

Tags

Hybrid Threats, Maritime Security, Legal Analysis

Loading signal...

{ "id": "8617859c-f108-4541-a3b7-c5145efef1cd", "url": "https://hybridcoe.fi/wp-content/uploads/2020/07/NEW_Handbook-on-maritime-threats_RGB.pdf", "source": "extension", "status": "approved", "category": "Military & Paramilitary Operations", "subcategory": "Conventional Military Pressure", "incident_type": "Naval intimidation / close approaches", "country": "Baltic Sea Region", "source_reliability": "C", "info_credibility": "3", "tags": [ "Hybrid Threats", "Maritime Security", "Legal Analysis" ], "nodes": [], "countries": [ "Baltic Sea Region" ], "where_text": "Maritime", "headline": null, "description": "This handbook discusses the potential maritime hybrid threats and the legal frameworks surrounding them, emphasizing the importance of understanding vulnerabilities and resilience in maritime operations.", "summary_short": "The handbook outlines maritime hybrid threats and offers a legal analysis to assist policymakers and maritime operators in understanding potential scenarios.", "summary_extended": "Published in November 2019, the 'Handbook on Maritime Hybrid Threats' provides a comprehensive analysis of maritime hybrid threats and their implications for international law. The handbook highlights the economic and political consequences of maritime disruptions and categorizes ten potential scenarios to aid policymakers in understanding the legal context of maritime operations. It emphasizes the necessity of adhering to international legal frameworks to avoid unintended escalations. The handbook is meant to inform and prepare EU and NATO institutions against hybrid maritime threats.", "actor_primary": "Hybrid CoE", "target_primary": null, "location_text": "Maritime Domain", "location_region": "", "location_coordinates_lat": null, "location_coordinates_lon": null, "location_precision": "Unknown", "is_aggressor_signal": false, "signal_type": "DEFENSE_PREP_SIGNAL", "is_hybrid_war_signal": true, "classification_complete": true, "hybrid_signal_complete": true, "classification_confidence": "High", "classification_rationale": "The document aims to improve understanding and preparation against hybrid threats in maritime contexts.", "event_time_utc": "2019-11-01T00:00:00.000Z", "end_time_utc": null, "event_time_confidence": "pm24h", "created_at": "2026-02-01T00:14:39.140Z", "updated_at": "2026-11-09T06:58:21.434Z", "reliability_band": "strong", "location_precision_band": "unknown", "time_precision_band": "within_24h", "severity_band": "moderate", "attribution_confidence_band": "high", "attribution_basis": "single_source" }