#72 MATTHEW // Vessel Intelligence System

Intelligence Overview

MATTHEW · MMSI 367688580 · 🇺🇸 US · Primary Port: Houston

PERIOD: JAN–DEC 2024

⚠ INTELLIGENCE ASSESSMENT: MATTHEW ranks #72 of 69,461 monitored vessels with 200 anomalous detections across 12 months. Composite risk score: 0.9500 (CRITICAL). Active alert types: ZIGZAG, SPEED_ANOMALY.

Global Rank

#72

of 69,461 vessels

Composite Score

0.9500

CRITICAL

Total Detections

200

Months Active

12/12

Unique Ports

2

Speed Anomalies

1

Max Speed

83.7 kn

Monthly Detection Volume

1
17

10
20

11
16

12
19

2
18

3
10

4
16

2024 MONTHLY DETECTIONS

Alert Type Distribution

ZIGZAG

115

SPEED_ANOMALY

1

Key Intelligence Findings

Velocity Fraud — 1 Speed Anomaly Events

AIS SOG field manipulated to broadcast physically impossible speeds up to 83.7 knots. Systematic falsification of movement data to corrupt automated tracking algorithms.

Evasion Navigation — 115 Zigzag Events

Erratic course-over-ground patterns up to 179.6° std deviation, far exceeding the 50° anomaly threshold. Pattern consistent with surveillance evasion maneuvers or anchor position AIS noise.

Port Detection Summary

🇺🇸

Houston

84

avg 0.810

🇺🇸

Galveston

32

avg 0.700

Monthly Alert Log — All Months

Month	Detections	Severity	Score	Nearest Port	Alert Types
January 2024	17	CRITICAL	0.9000	Houston	ZIGZAG
February 2024	18	CRITICAL	0.9000	Galveston	ZIGZAG
March 2024	10	CRITICAL	0.9000	Houston	ZIGZAG
April 2024	16	CRITICAL	0.9000	Houston	ZIGZAG
May 2024	16	CRITICAL	0.9000	Houston	ZIGZAG
June 2024	21	CRITICAL	0.9000	Houston	ZIGZAG
July 2024	14	CRITICAL	0.9000	Houston	ZIGZAG
August 2024	13	CRITICAL	0.9000	Houston	ZIGZAG
September 2024	20	CRITICAL	0.9000	Houston	ZIGZAG
October 2024	20	CRITICAL	0.9000	Houston	ZIGZAG
November 2024	16	CRITICAL	0.9500	Houston	ZIGZAG; SPEED_ANOMALY
December 2024	19	CRITICAL	0.9000	Houston	ZIGZAG

Activity Map

Detection events plotted · Color-coded by alert type · Drag to pan · Scroll to zoom

● Speed Anomaly ● Position Jump ● Zigzag ● Dark Vessel ● Rendezvous

Threat Intelligence

Analytical confidence: HIGH · Multi-indicator assessment

Threat Indicators Matrix

Indicator	Status	Evidence	Confidence
AIS Blackout / Dark Vessel	NOT DETECTED	—	LOW
GPS Spoofing / Position Jump	NOT DETECTED	—	LOW
Velocity Fraud / Speed Anomaly	CONFIRMED	1 events · max 83.7 kn	CRITICAL
Evasion Navigation / Zigzag	CONFIRMED	115 events · max COG std 179.6°	HIGH
Ship-to-Ship Rendezvous	NOT DETECTED	—	LOW
Multi-Port Operations	POSSIBLE	2 unique ports	MEDIUM

Operational Profile

Primary AO

Houston and surrounding maritime zone

Active Period

12 months of continuous alert activity in 2024

Alert Density

200 detections across 116 individual events (avg 16.7/month)

Active Techniques

⟳ ZIGZAG ⚡ SPEED

Threat Category

AIS Anomaly — Single or dual technique pattern

TTP Analysis

Tactics, Techniques & Procedures — Maritime ATT&CK Framework

MAR-T003

RTE-ANO-005

Evasion Navigation

Erratic COG changes exceeding 50° threshold (max 179.6°). Consistent with surveillance evasion or at-anchor AIS manipulation. Count: 115 events.

HIGH CONFIDENCE
115 events

MAR-T001

RTE-ANO-001

Velocity Fraud

AIS SOG field manipulation to broadcast impossible speeds up to 83.7 kn. Corrupts automated tracking algorithms and creates false movement vectors. Count: 1 events.

HIGH CONFIDENCE
1 events

Risk Analysis

Composite risk scoring · Weighted indicator model · Quantus v2.4

Composite Score

0.9500

CRITICAL

Avg Detection Score

0.9042

Global Rank

#72

of 69,461 vessels

Weighted Indicator Scoring

Formula: (Dark×3) + (Rendezvous×4) + (PosJump×2) + (Speed×1) + (Zigzag×0.5) + (MaxScore×50)

Indicator	Count	Weight	Contribution
DARK_VESSEL	0	×3	0.0
RENDEZVOUS	0	×4	0.0
POSITION_JUMP	0	×2	0.0
SPEED_ANOMALY	1	×1	1.0
ZIGZAG	115	×0.5	57.5
MaxSingleScore	0.9500	×50	47.5
COMPOSITE TOTAL	Normalized [0,1]		0.9500 CRITICAL

⚡ Speed Anomaly Detections

Indicator: RTE-ANO-001 · 1 events · Max: 83.7 kn

AIS SOG FRAUD

Speed anomaly events are triggered when AIS Speed Over Ground (SOG) exceeds the 30-knot detection threshold. MATTHEW reports speeds up to 83.7 kn — consistent with deliberate AIS SOG field manipulation to corrupt tracking algorithms.

Total Events

1

Max Reported SOG

83.7 kn

Indicator ID

RTE-ANO-001

Speed Anomaly Events (Top 50 by score)

Date	Max SOG (kn)	Score	Severity	Port	Coordinates

⟳ Zigzag / Erratic Navigation

Indicator: RTE-ANO-005 · 115 events · Max COG std: 179.6°

EVASION PATTERN

Zigzag events are triggered when course-over-ground (COG) standard deviation exceeds 50°. MATTHEW records COG deviations up to 179.6° — consistent with surveillance evasion maneuvers or at-anchor AIS noise manipulation.

Total Events

115

Max COG Std Dev

179.6°

Threshold

50°

Zigzag Events (Top 50 by COG deviation)

Date	COG Std Dev (°)	Score	Severity	Port	Coordinates

Port History

2 distinct port areas · US primary flag state

Complete Port Detection Summary

Port	Country	Detections	Avg Score	Avg Dist NM	Risk
Houston	🇺🇸	84	0.8104	15.7	STANDARD
Galveston	🇺🇸	32	0.7002	11.7	STANDARD

🇺🇸 Houston — Port Profile

84 detections · Avg score 0.8104 · Avg distance 15.7 NM

LOW RISK

Total Detections

84

Primary port of operation

Avg Alert Score

0.8104

Avg Distance NM

15.7

Port proximity zone

Detection Types at Houston

ZIGZAG

84

Coordinates: 29.749°N, 95.362°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

84 of 116 total detections (72.4%)

Avg Distance from Port

15.7 NM — consistent with port proximity operations

🇺🇸 Galveston — Port Profile

32 detections · Avg score 0.7002 · Avg distance 11.7 NM

LOW RISK

Total Detections

32

Secondary port

Avg Alert Score

0.7002

Avg Distance NM

11.7

Port proximity zone

Detection Types at Galveston

ZIGZAG

31

SPEED_ANOMALY

1

Coordinates: 29.301°N, 94.798°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

32 of 116 total detections (27.6%)

Avg Distance from Port

11.7 NM — consistent with port proximity operations

Ownership Intelligence

MMSI registry · Flag state analysis · Beneficial ownership investigation

Vessel Name

MATTHEW

MMSI

367688580

Flag State (MMSI-derived)

🇺🇸 US

MID Code

367 → 🇺🇸 US

Primary Port

Houston

Detection Period

12 months (2024)

Registered Owner

Pending registry lookup

Beneficial Owner

Requires FinCEN CDD query

OFAC SDN Status

Pending cross-reference

Recommended Action

Physical inspection + full registry query

Vessel Type Analysis

AIS declared type · Physical capability vs. observed behavior

Type Mismatch Assessment

AIS Declared Type

vessel_type=37 (Pleasure Craft)

Behavior Consistency

INCONSISTENT — year-round multi-port operations with 200 anomalous events are not consistent with pleasure craft use

Speed Capability

Reported 83.7 kn — physically impossible for Type 37 (max ~45 kn high-performance)

Inspection Priority

HIGH — Recommend USCG/CBSA physical boarding and documentation review

Applicable Statutes

47 C.F.R. § 80.953 (AIS falsification) · 33 C.F.R. § 164.46 (AIS carriage) · 21 U.S.C. § 955 (maritime drug law)