Intelligence Overview
CGC WILLIAM CHADWICK · MMSI 338926450 · 🇺🇸 US · Primary Port: Boston
PERIOD: JAN–DEC 2024
Global Rank
#183
of 69,461 vessels
Composite Score
0.9500
CRITICAL
Total Detections
117
Months Active
11/12
Unique Ports
4
Dark Events
1
AIS blackout
Position Jumps
19
GPS spoofing
Speed Anomalies
19
Max Speed
95.0 kn
Max Jump
4,763km
Monthly Detection Volume
2024 MONTHLY DETECTIONS
Alert Type Distribution
Key Intelligence Findings
AIS Blackout Confirmed — 1 Event
Deliberate AIS transponder deactivation detected. Each event represents a period where CGC WILLIAM CHADWICK was operating outside electronic surveillance. Consistent with covert cargo transfer or evasion operations.
GPS Spoofing — 19 Position Jumps
AIS coordinates fabricated at impossible locations. Maximum jump of 4,763 km confirms the AIS transmitter is broadcasting false positions. Systematic identity concealment is in progress.
Velocity Fraud — 19 Speed Anomaly Events
AIS SOG field manipulated to broadcast physically impossible speeds up to 95.0 knots. Systematic falsification of movement data to corrupt automated tracking algorithms.
Evasion Navigation — 28 Zigzag Events
Erratic course-over-ground patterns up to 142.0° std deviation, far exceeding the 50° anomaly threshold. Pattern consistent with surveillance evasion maneuvers or anchor position AIS noise.
Port Detection Summary
Monthly Alert Log — All Months
| Month | Detections | Severity | Score | Nearest Port | Alert Types |
|---|---|---|---|---|---|
| January 2024 | 6 | HIGH | 0.7979 | Boston | ZIGZAG; DARK_VESSEL |
| February 2024 | 4 | HIGH | 0.8524 | Boston | ZIGZAG; SPEED_ANOMALY |
| March 2024 | 13 | CRITICAL | 0.9500 | Boston | SPEED_ANOMALY; ZIGZAG; POSITION_JUMP |
| April 2024 | 8 | CRITICAL | 0.9334 | Boston | ZIGZAG; SPEED_ANOMALY; POSITION_JUMP |
| June 2024 | 1 | CRITICAL | 0.9000 | Boston | ZIGZAG |
| July 2024 | 21 | CRITICAL | 0.9500 | Cartagena | POSITION_JUMP; SPEED_ANOMALY; ZIGZAG |
| August 2024 | 10 | CRITICAL | 0.9263 | Boston | ZIGZAG; POSITION_JUMP |
| September 2024 | 18 | CRITICAL | 0.9287 | Cartagena | POSITION_JUMP; ZIGZAG; SPEED_ANOMALY; DARK_VESSEL |
| October 2024 | 7 | CRITICAL | 0.9017 | Cartagena | POSITION_JUMP; ZIGZAG; SPEED_ANOMALY |
| November 2024 | 20 | CRITICAL | 0.9440 | Boston | ZIGZAG; POSITION_JUMP; SPEED_ANOMALY |
| December 2024 | 9 | CRITICAL | 0.9500 | Boston | ZIGZAG; SPEED_ANOMALY; POSITION_JUMP |
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 | CONFIRMED | 1 events detected | CRITICAL |
| GPS Spoofing / Position Jump | CONFIRMED | 19 jumps · max 4762.8km | CRITICAL |
| Velocity Fraud / Speed Anomaly | CONFIRMED | 19 events · max 95.0 kn | CRITICAL |
| Evasion Navigation / Zigzag | CONFIRMED | 28 events · max COG std 142.0° | HIGH |
| Ship-to-Ship Rendezvous | NOT DETECTED | — | LOW |
| Multi-Port Operations | CONFIRMED | 4 unique ports | HIGH |
| High-Risk Port Proximity: Cartagena | CONFIRMED | 11 detections | HIGH |
Operational Profile
Primary AO
Boston and surrounding maritime zone
Active Period
11 months of continuous alert activity in 2024
Alert Density
117 detections across 67 individual events (avg 10.6/month)
Active Techniques
⊕ POS JUMP ⟳ ZIGZAG ◐ DARK ⚡ SPEED
Threat Category
High-Confidence AIS Manipulation — Multiple confirmed evasion techniques
TTP Analysis
Tactics, Techniques & Procedures — Maritime ATT&CK Framework
MAR-T003
RTE-ANO-005
Evasion Navigation
Erratic COG changes exceeding 50° threshold (max 142.0°). Consistent with surveillance evasion or at-anchor AIS manipulation. Count: 28 events.
HIGH CONFIDENCE
28 events
28 events
MAR-T001
RTE-ANO-001
Velocity Fraud
AIS SOG field manipulation to broadcast impossible speeds up to 95.0 kn. Corrupts automated tracking algorithms and creates false movement vectors. Count: 19 events.
HIGH CONFIDENCE
19 events
19 events
MAR-T002
AIS-MAN-003
GPS Spoofing
GPS coordinate spoofing — AIS positions fabricated at impossible locations. Max jump: 4762.8km. Implies deliberate identity concealment. Count: 19 events.
HIGH CONFIDENCE
19 events
19 events
MAR-T004
AIS-MAN-001
AIS Blackout
Deliberate AIS transponder deactivation to create surveillance gaps. Count: 1 events. Each event represents an unmonitored operational window.
HIGH CONFIDENCE
1 events
1 events
Risk Analysis
Composite risk scoring · Weighted indicator model · Quantus v2.4
Composite Score
0.9500
CRITICAL
Avg Detection Score
0.9122
Global Rank
#183
of 69,461 vessels
Weighted Indicator Scoring
| Indicator | Count | Weight | Contribution |
|---|---|---|---|
| DARK_VESSEL | 1 | ×3 | 3.0 |
| RENDEZVOUS | 0 | ×4 | 0.0 |
| POSITION_JUMP | 19 | ×2 | 38.0 |
| SPEED_ANOMALY | 19 | ×1 | 19.0 |
| ZIGZAG | 28 | ×0.5 | 14.0 |
| MaxSingleScore | 0.9500 | ×50 | 47.5 |
| COMPOSITE TOTAL | Normalized [0,1] | 0.9500 CRITICAL | |
⚡ Speed Anomaly Detections
Indicator: RTE-ANO-001 · 19 events · Max: 95.0 kn
Total Events
19
Max Reported SOG
95.0 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 · 19 events · Max jump: 4,763 km
Total Events
19
Max Jump Distance
4,763 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 · 28 events · Max COG std: 142.0°
Total Events
28
Max COG Std Dev
142.0°
Threshold
50°
Zigzag Events (Top 50 by COG deviation)
| Date | COG Std Dev (°) | Score | Severity | Port | Coordinates |
|---|
◐ Dark Vessel Events
Indicator: AIS-MAN-001 · 1 AIS blackout events detected
Dark Vessel Events
1
Indicator
AIS-MAN-001
Risk Level
CRITICAL
◐ DARK EVENT #1 — 2024-01-24T04:10:19
AIS BLACKOUT
Location
41.2506°N, 71.1839°W — Boston
AIS Gap Duration
15.7 hours
Pre-Blackout Speed
6.2 knots SOG
Displacement
66.5 NM from port during gap
Score
0.7061 · MEDIUM
Assessment
AIS gap consistent with deliberate concealment.
Port History
4 distinct port areas · US primary flag state
Complete Port Detection Summary
| Port | Country | Detections | Avg Score | Avg Dist NM | Risk |
|---|---|---|---|---|---|
| Boston | 🇺🇸 | 45 | 0.7625 | 26.0 | STANDARD |
| Cartagena | 🇨🇴 | 11 | 0.9500 | 513.8 | HIGH |
| Portland ME | 🇺🇸 | 10 | 0.7455 | 20.7 | STANDARD |
| New York | 🇺🇸 | 1 | 0.6122 | 6.5 | STANDARD |
🇺🇸 Boston — Port Profile
45 detections · Avg score 0.7625 · Avg distance 26.0 NM
Total Detections
45
Primary port of operation
Avg Alert Score
0.7625
Avg Distance NM
26.0
Port proximity zone
Detection Types at Boston
Coordinates: 42.358°N, 71.051°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
45 of 67 total detections (67.2%)
Avg Distance from Port
26.0 NM — consistent with port proximity operations
🇨🇴 Cartagena — Port Profile
11 detections · Avg score 0.9500 · Avg distance 513.8 NM
Total Detections
11
Secondary port
Avg Alert Score
0.9500
Avg Distance NM
513.8
Possible spoofed coords
Detection Types at Cartagena
Coordinates: 10.399°N, 75.514°W
Port Intelligence Notes
Port Country
🇨🇴 CO
Risk Classification
HIGH — HIGH
Detection Share
11 of 67 total detections (16.4%)
Avg Distance from Port
513.8 NM — anomalously high, suggests spoofed coordinates
🇺🇸 Portland ME — Port Profile
10 detections · Avg score 0.7455 · Avg distance 20.7 NM
Total Detections
10
Secondary port
Avg Alert Score
0.7455
Avg Distance NM
20.7
Port proximity zone
Detection Types at Portland ME
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
10 of 67 total detections (14.9%)
Avg Distance from Port
20.7 NM — consistent with port proximity operations
🇺🇸 New York — Port Profile
1 detections · Avg score 0.6122 · Avg distance 6.5 NM
Total Detections
1
Secondary port
Avg Alert Score
0.6122
Avg Distance NM
6.5
Port proximity zone
Detection Types at New York
Coordinates: 40.661°N, 74.044°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
1 of 67 total detections (1.5%)
Avg Distance from Port
6.5 NM — consistent with port proximity operations
Ownership Intelligence
MMSI registry · Flag state analysis · Beneficial ownership investigation
Vessel Name
CGC WILLIAM CHADWICK
MMSI
338926450
Flag State (MMSI-derived)
🇺🇸 US
MID Code
338 → 🇺🇸 US
Primary Port
Boston
Detection Period
11 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 117 anomalous events are not consistent with pleasure craft use
Speed Capability
Reported 95.0 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)