#352 SEA ADDLED // Vessel Intelligence System

Intelligence Overview

SEA ADDLED · MMSI 338211588 · 🇺🇸 US · Primary Port: Seattle

PERIOD: JAN–DEC 2024

⚠ INTELLIGENCE ASSESSMENT: SEA ADDLED ranks #352 of 69,461 monitored vessels with 56 anomalous detections across 12 months. Composite risk score: 0.9500 (CRITICAL). Active alert types: SPEED_ANOMALY, ZIGZAG, POSITION_JUMP.

Global Rank

#352

of 69,461 vessels

Composite Score

0.9500

CRITICAL

Total Detections

56

Months Active

12/12

Unique Ports

4

Position Jumps

4

GPS spoofing

Speed Anomalies

28

Max Speed

102.2 kn

Max Jump

1,229km

Monthly Detection Volume

1
14

10
2

11
3

12
4

2
4

3
3

4
5

2024 MONTHLY DETECTIONS

Alert Type Distribution

SPEED_ANOMALY

28

POSITION_JUMP

4

ZIGZAG

3

Key Intelligence Findings

GPS Spoofing — 4 Position Jumps

AIS coordinates fabricated at impossible locations. Maximum jump of 1,229 km confirms the AIS transmitter is broadcasting false positions. Systematic identity concealment is in progress.

Velocity Fraud — 28 Speed Anomaly Events

AIS SOG field manipulated to broadcast physically impossible speeds up to 102.2 knots. Systematic falsification of movement data to corrupt automated tracking algorithms.

Evasion Navigation — 3 Zigzag Events

Erratic course-over-ground patterns up to 114.3° std deviation, far exceeding the 50° anomaly threshold. Pattern consistent with surveillance evasion maneuvers.

Port Detection Summary

🇺🇸

Seattle

27

avg 0.685

🇨🇦

Vancouver

4

avg 0.773

🇺🇸

Tacoma

2

avg 0.816

🇺🇸

Long Beach

2

avg 0.755

Monthly Alert Log — All Months

Month	Detections	Severity	Score	Nearest Port	Alert Types
January 2024	14	CRITICAL	0.9021	Seattle	SPEED_ANOMALY; ZIGZAG; POSITION_JUMP
February 2024	4	CRITICAL	0.9500	Seattle	SPEED_ANOMALY
March 2024	3	MEDIUM	0.6845	Seattle	SPEED_ANOMALY
April 2024	5	HIGH	0.8963	Seattle	SPEED_ANOMALY; POSITION_JUMP
May 2024	5	MEDIUM	0.7063	Seattle	SPEED_ANOMALY; POSITION_JUMP
June 2024	6	HIGH	0.7675	Seattle	SPEED_ANOMALY; POSITION_JUMP; ZIGZAG
July 2024	6	HIGH	0.8596	Seattle	SPEED_ANOMALY; ZIGZAG
August 2024	2	MEDIUM	0.5774	Seattle	SPEED_ANOMALY
September 2024	2	HIGH	0.8942	Seattle	SPEED_ANOMALY
October 2024	2	MEDIUM	0.6377	Seattle	SPEED_ANOMALY
November 2024	3	HIGH	0.8609	Seattle	SPEED_ANOMALY
December 2024	4	CRITICAL	0.9500	Vancouver	SPEED_ANOMALY

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	CONFIRMED	4 jumps · max 1228.9km	CRITICAL
Velocity Fraud / Speed Anomaly	CONFIRMED	28 events · max 102.2 kn	CRITICAL
Evasion Navigation / Zigzag	CONFIRMED	3 events · max COG std 114.3°	HIGH
Ship-to-Ship Rendezvous	NOT DETECTED	—	LOW
Multi-Port Operations	CONFIRMED	4 unique ports	HIGH

Operational Profile

Primary AO

Seattle and surrounding maritime zone

Active Period

12 months of continuous alert activity in 2024

Alert Density

56 detections across 35 individual events (avg 4.7/month)

Active Techniques

⚡ SPEED ⟳ ZIGZAG ⊕ POS JUMP

Threat Category

High-Confidence AIS Manipulation — Multiple confirmed evasion techniques

TTP Analysis

Tactics, Techniques & Procedures — Maritime ATT&CK Framework

MAR-T001

RTE-ANO-001

Velocity Fraud

AIS SOG field manipulation to broadcast impossible speeds up to 102.2 kn. Corrupts automated tracking algorithms and creates false movement vectors. Count: 28 events.

HIGH CONFIDENCE
28 events

MAR-T002

AIS-MAN-003

GPS Spoofing

GPS coordinate spoofing — AIS positions fabricated at impossible locations. Max jump: 1228.9km. Implies deliberate identity concealment. Count: 4 events.

HIGH CONFIDENCE
4 events

MAR-T003

RTE-ANO-005

Evasion Navigation

Erratic COG changes exceeding 50° threshold (max 114.3°). Consistent with surveillance evasion or at-anchor AIS manipulation. Count: 3 events.

HIGH CONFIDENCE
3 events

Risk Analysis

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

Composite Score

0.9500

CRITICAL

Avg Detection Score

0.8072

Global Rank

#352

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	4	×2	8.0
SPEED_ANOMALY	28	×1	28.0
ZIGZAG	3	×0.5	1.5
MaxSingleScore	0.9500	×50	47.5
COMPOSITE TOTAL	Normalized [0,1]		0.9500 CRITICAL

⚡ Speed Anomaly Detections

Indicator: RTE-ANO-001 · 28 events · Max: 102.2 kn

AIS SOG FRAUD

Speed anomaly events are triggered when AIS Speed Over Ground (SOG) exceeds the 30-knot detection threshold. SEA ADDLED reports speeds up to 102.2 kn — consistent with deliberate AIS SOG field manipulation to corrupt tracking algorithms.

Total Events

28

Max Reported SOG

102.2 kn

Indicator ID

RTE-ANO-001

Speed Anomaly Events (Top 50 by score)

Date	Max SOG (kn)	Score	Severity	Port	Coordinates

⊕ Position Jump Detections

Indicator: AIS-MAN-003 · 4 events · Max jump: 1,229 km

GPS SPOOFING

Position jumps confirm GPS coordinate spoofing — AIS positions fabricated at impossible locations. SEA ADDLED has 4 confirmed position jumps with maximum displacement of 1,229 km.

Total Events

4

Max Jump Distance

1,229 km

Indicator ID

AIS-MAN-003

Position Jump Events (Top 50 by distance)

Date	Jump (km)	Implied Speed (kn)	Score	Severity	Spoofed-To Port	Coordinates

⟳ Zigzag / Erratic Navigation

Indicator: RTE-ANO-005 · 3 events · Max COG std: 114.3°

EVASION PATTERN

Zigzag events are triggered when course-over-ground (COG) standard deviation exceeds 50°. SEA ADDLED records COG deviations up to 114.3° — consistent with surveillance evasion maneuvers or at-anchor AIS noise manipulation.

Total Events

3

Max COG Std Dev

114.3°

Threshold

50°

Zigzag Events (Top 50 by COG deviation)

Date	COG Std Dev (°)	Score	Severity	Port	Coordinates

Port History

4 distinct port areas · US primary flag state

Complete Port Detection Summary

Port	Country	Detections	Avg Score	Avg Dist NM	Risk
Seattle	🇺🇸	27	0.6854	7.9	STANDARD
Vancouver	🇨🇦	4	0.7727	79.0	STANDARD
Tacoma	🇺🇸	2	0.8155	23.7	STANDARD
Long Beach	🇺🇸	2	0.7547	412.3	STANDARD

🇺🇸 Seattle — Port Profile

27 detections · Avg score 0.6854 · Avg distance 7.9 NM

LOW RISK

Total Detections

27

Primary port of operation

Avg Alert Score

0.6854

Avg Distance NM

7.9

Port proximity zone

Detection Types at Seattle

SPEED_ANOMALY

23

ZIGZAG

3

POSITION_JUMP

1

Coordinates: 47.601°N, 122.334°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

27 of 35 total detections (77.1%)

Avg Distance from Port

7.9 NM — consistent with port proximity operations

🇨🇦 Vancouver — Port Profile

4 detections · Avg score 0.7727 · Avg distance 79.0 NM

LOW RISK

Total Detections

4

Secondary port

Avg Alert Score

0.7727

Avg Distance NM

79.0

Port proximity zone

Detection Types at Vancouver

POSITION_JUMP

2

SPEED_ANOMALY

2

Coordinates: 49.283°N, 123.120°W

Port Intelligence Notes

Port Country

🇨🇦 CA

Risk Classification

LOW — Standard port monitoring applies

Detection Share

4 of 35 total detections (11.4%)

Avg Distance from Port

79.0 NM — consistent with port proximity operations

🇺🇸 Tacoma — Port Profile

2 detections · Avg score 0.8155 · Avg distance 23.7 NM

LOW RISK

Total Detections

2

Secondary port

Avg Alert Score

0.8155

Avg Distance NM

23.7

Port proximity zone

Detection Types at Tacoma

SPEED_ANOMALY

2

Coordinates: 47.254°N, 122.411°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

2 of 35 total detections (5.7%)

Avg Distance from Port

23.7 NM — consistent with port proximity operations

🇺🇸 Long Beach — Port Profile

2 detections · Avg score 0.7547 · Avg distance 412.3 NM

LOW RISK

Total Detections

2

Secondary port

Avg Alert Score

0.7547

Avg Distance NM

412.3

Possible spoofed coords

Detection Types at Long Beach

POSITION_JUMP

1

SPEED_ANOMALY

1

Coordinates: 33.754°N, 118.216°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

2 of 35 total detections (5.7%)

Avg Distance from Port

412.3 NM — anomalously high, suggests spoofed coordinates

Ownership Intelligence

MMSI registry · Flag state analysis · Beneficial ownership investigation

Vessel Name

SEA ADDLED

MMSI

338211588

Flag State (MMSI-derived)

🇺🇸 US

MID Code

338 → 🇺🇸 US

Primary Port

Seattle

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

Requires investigation

Speed Capability

Reported 102.2 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)