#234
STEPHEN DANN
● CRITICAL MMSI: 367686910
Detections
92
Score
0.95
Months
10
// QUANTUS MARITIME INTELLIGENCE // 2024 ANNUAL ASSESSMENT // RANK #234 OF 69,461 VESSELS //
Intelligence Overview
STEPHEN DANN · MMSI 367686910 · 🇺🇸 US · Primary Port: New York
PERIOD: JAN–DEC 2024
⚠ INTELLIGENCE ASSESSMENT: STEPHEN DANN ranks #234 of 69,461 monitored vessels with 92 anomalous detections across 10 months. Composite risk score: 0.9500 (CRITICAL). Active alert types: DARK_VESSEL, POSITION_JUMP, ZIGZAG.
Global Rank
#234
of 69,461 vessels
Composite Score
0.9500
CRITICAL
Total Detections
92
Months Active
10/12
Unique Ports
10
Dark Events
3
AIS blackout
Position Jumps
3
GPS spoofing
Max Jump
352km
Monthly Detection Volume
1
13
10
5
11
4
12
12
2
14
3
10
4
10
2024 MONTHLY DETECTIONS
Alert Type Distribution
ZIGZAG
62
POSITION_JUMP
3
DARK_VESSEL
3
Key Intelligence Findings
AIS Blackout Confirmed — 3 Events
Deliberate AIS transponder deactivation detected. Each event represents a period where STEPHEN DANN was operating outside electronic surveillance. Consistent with covert cargo transfer or evasion operations.
GPS Spoofing — 3 Position Jumps
AIS coordinates fabricated at impossible locations. Maximum jump of 352 km confirms the AIS transmitter is broadcasting false positions. Systematic identity concealment is in progress.
Evasion Navigation — 62 Zigzag Events
Erratic course-over-ground patterns up to 193.6° std deviation, far exceeding the 50° anomaly threshold. Pattern consistent with surveillance evasion maneuvers or anchor position AIS noise.
Port Detection Summary
🇺🇸
New York
47
avg 0.783
🇺🇸
Key West
5
avg 0.675
🇺🇸
Tampa
5
avg 0.695
🇺🇸
Charleston
2
avg 0.736
🇺🇸
Jacksonville
2
avg 0.780
🇺🇸
Wilmington NC
2
avg 0.656
🇺🇸
Norfolk
2
avg 0.686
🇺🇸
Mobile
1
avg 0.696
Monthly Alert Log — All Months
MonthDetectionsSeverityScoreNearest PortAlert Types
January 2024 13 CRITICAL 0.9000 New York ZIGZAG
February 2024 14 CRITICAL 0.9000 New York ZIGZAG
March 2024 10 CRITICAL 0.9000 New York ZIGZAG
April 2024 10 CRITICAL 0.9000 New York ZIGZAG
May 2024 8 CRITICAL 0.9000 New York ZIGZAG
June 2024 10 CRITICAL 0.9500 New York ZIGZAG; SPEED_ANOMALY
July 2024 6 MEDIUM 0.7364 New York ZIGZAG; DARK_VESSEL
October 2024 5 HIGH 0.8078 Charleston ZIGZAG; POSITION_JUMP; DARK_VESSEL
November 2024 4 HIGH 0.8047 Mobile ZIGZAG; DARK_VESSEL
December 2024 12 HIGH 0.7956 Port Canaveral ZIGZAG; POSITION_JUMP; DARK_VESSEL
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
IndicatorStatusEvidenceConfidence
AIS Blackout / Dark VesselCONFIRMED3 events detectedCRITICAL
GPS Spoofing / Position JumpCONFIRMED3 jumps · max 352.4kmCRITICAL
Velocity Fraud / Speed AnomalyNOT DETECTED—LOW
Evasion Navigation / ZigzagCONFIRMED62 events · max COG std 193.6°HIGH
Ship-to-Ship RendezvousNOT DETECTED—LOW
Multi-Port OperationsCONFIRMED10 unique portsHIGH
Operational Profile
Primary AO
New York and surrounding maritime zone
Active Period
10 months of continuous alert activity in 2024
Alert Density
92 detections across 68 individual events (avg 9.2/month)
Active Techniques
◐ DARK ⊕ POS JUMP ⟳ ZIGZAG
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 193.6°). Consistent with surveillance evasion or at-anchor AIS manipulation. Count: 62 events.
HIGH CONFIDENCE
62 events
MAR-T002
AIS-MAN-003
GPS Spoofing
GPS coordinate spoofing — AIS positions fabricated at impossible locations. Max jump: 352.4km. Implies deliberate identity concealment. Count: 3 events.
HIGH CONFIDENCE
3 events
MAR-T004
AIS-MAN-001
AIS Blackout
Deliberate AIS transponder deactivation to create surveillance gaps. Count: 3 events. Each event represents an unmonitored operational window.
HIGH CONFIDENCE
3 events
Risk Analysis
Composite risk scoring · Weighted indicator model · Quantus v2.4
Composite Score
0.9500
CRITICAL
Avg Detection Score
0.8595
Global Rank
#234
of 69,461 vessels
Weighted Indicator Scoring
Formula: (Dark×3) + (Rendezvous×4) + (PosJump×2) + (Speed×1) + (Zigzag×0.5) + (MaxScore×50)
IndicatorCountWeightContribution
DARK_VESSEL3×39.0
RENDEZVOUS0×40.0
POSITION_JUMP3×26.0
SPEED_ANOMALY0×10.0
ZIGZAG62×0.531.0
MaxSingleScore0.9500×5047.5
COMPOSITE TOTALNormalized [0,1]0.9500 CRITICAL
⊕ Position Jump Detections
Indicator: AIS-MAN-003 · 3 events · Max jump: 352 km
GPS SPOOFING
Position jumps confirm GPS coordinate spoofing — AIS positions fabricated at impossible locations. STEPHEN DANN has 3 confirmed position jumps with maximum displacement of 352 km.
Total Events
3
Max Jump Distance
352 km
Indicator ID
AIS-MAN-003
Position Jump Events (Top 50 by distance)
DateJump (km)Implied Speed (kn)ScoreSeveritySpoofed-To PortCoordinates
⟳ Zigzag / Erratic Navigation
Indicator: RTE-ANO-005 · 62 events · Max COG std: 193.6°
EVASION PATTERN
Zigzag events are triggered when course-over-ground (COG) standard deviation exceeds 50°. STEPHEN DANN records COG deviations up to 193.6° — consistent with surveillance evasion maneuvers or at-anchor AIS noise manipulation.
Total Events
62
Max COG Std Dev
193.6°
Threshold
50°
Zigzag Events (Top 50 by COG deviation)
DateCOG Std Dev (°)ScoreSeverityPortCoordinates
◐ Dark Vessel Events
Indicator: AIS-MAN-001 · 3 AIS blackout events detected
AIS BLACKOUT
⚠ HIGH SIGNIFICANCE: Dark vessel events represent deliberate AIS transponder deactivation — a primary indicator of intentional surveillance evasion, covert cargo transfer, or sanctions circumvention.
Dark Vessel Events
3
Indicator
AIS-MAN-001
Risk Level
CRITICAL
◐ DARK EVENT #1 — 2024-10-28T06:42:29
AIS BLACKOUT
Location
25.0738°N, 82.3659°W — Key West
AIS Gap Duration
6.1 hours
Pre-Blackout Speed
3.2 knots SOG
Displacement
44.6 NM from port during gap
Score
0.5230 · LOW
Assessment
AIS gap consistent with deliberate concealment.
◐ DARK EVENT #2 — 2024-11-26T01:52:07
AIS BLACKOUT
Location
27.5961°N, 84.0359°W — Tampa
AIS Gap Duration
13.8 hours
Pre-Blackout Speed
5.0 knots SOG
Displacement
86.4 NM from port during gap
Score
0.7189 · MEDIUM
Assessment
AIS gap consistent with deliberate concealment.
◐ DARK EVENT #3 — 2024-12-28T07:43:44
AIS BLACKOUT
Location
26.6013°N, 82.3407°W — Tampa
AIS Gap Duration
9.4 hours
Pre-Blackout Speed
8.2 knots SOG
Displacement
81.1 NM from port during gap
Score
0.6410 · LOW
Assessment
AIS gap consistent with deliberate concealment.
Port History
10 distinct port areas · US primary flag state
Complete Port Detection Summary
PortCountryDetectionsAvg ScoreAvg Dist NMRisk
New York🇺🇸470.783218.6STANDARD
Key West🇺🇸50.675429.2STANDARD
Tampa🇺🇸50.695058.7STANDARD
Charleston🇺🇸20.73629.4STANDARD
Jacksonville🇺🇸20.780263.0STANDARD
Wilmington NC🇺🇸20.656467.8STANDARD
Norfolk🇺🇸20.68659.6STANDARD
Mobile🇺🇸10.695940.6STANDARD
🇺🇸 New York — Port Profile
47 detections · Avg score 0.7832 · Avg distance 18.6 NM
LOW RISK
Total Detections
47
Primary port of operation
Avg Alert Score
0.7832
Avg Distance NM
18.6
Port proximity zone
Detection Types at New York
ZIGZAG
47
Coordinates: 40.661°N, 74.044°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
47 of 68 total detections (69.1%)
Avg Distance from Port
18.6 NM — consistent with port proximity operations
🇺🇸 Key West — Port Profile
5 detections · Avg score 0.6754 · Avg distance 29.2 NM
LOW RISK
Total Detections
5
Secondary port
Avg Alert Score
0.6754
Avg Distance NM
29.2
Port proximity zone
Detection Types at Key West
POSITION_JUMP
3
DARK_VESSEL
1
ZIGZAG
1
Coordinates: 24.559°N, 81.800°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
5 of 68 total detections (7.4%)
Avg Distance from Port
29.2 NM — consistent with port proximity operations
🇺🇸 Tampa — Port Profile
5 detections · Avg score 0.6950 · Avg distance 58.7 NM
LOW RISK
Total Detections
5
Secondary port
Avg Alert Score
0.6950
Avg Distance NM
58.7
Port proximity zone
Detection Types at Tampa
ZIGZAG
3
DARK_VESSEL
2
Coordinates: 27.946°N, 82.457°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
5 of 68 total detections (7.4%)
Avg Distance from Port
58.7 NM — consistent with port proximity operations
🇺🇸 Charleston — Port Profile
2 detections · Avg score 0.7362 · Avg distance 9.4 NM
LOW RISK
Total Detections
2
Secondary port
Avg Alert Score
0.7362
Avg Distance NM
9.4
Port proximity zone
Detection Types at Charleston
ZIGZAG
2
Coordinates: 32.776°N, 79.931°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
2 of 68 total detections (2.9%)
Avg Distance from Port
9.4 NM — consistent with port proximity operations
🇺🇸 Jacksonville — Port Profile
2 detections · Avg score 0.7802 · Avg distance 63.0 NM
LOW RISK
Total Detections
2
Secondary port
Avg Alert Score
0.7802
Avg Distance NM
63.0
Port proximity zone
Detection Types at Jacksonville
ZIGZAG
2
Coordinates: 30.332°N, 81.660°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
2 of 68 total detections (2.9%)
Avg Distance from Port
63.0 NM — consistent with port proximity operations
🇺🇸 Wilmington NC — Port Profile
2 detections · Avg score 0.6564 · Avg distance 67.8 NM
LOW RISK
Total Detections
2
Secondary port
Avg Alert Score
0.6564
Avg Distance NM
67.8
Port proximity zone
Detection Types at Wilmington NC
ZIGZAG
2
Coordinates: 34.235°N, 77.948°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
2 of 68 total detections (2.9%)
Avg Distance from Port
67.8 NM — consistent with port proximity operations
🇺🇸 Norfolk — Port Profile
2 detections · Avg score 0.6865 · Avg distance 9.6 NM
LOW RISK
Total Detections
2
Secondary port
Avg Alert Score
0.6865
Avg Distance NM
9.6
Port proximity zone
Detection Types at Norfolk
ZIGZAG
2
Coordinates: 36.847°N, 76.293°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
2 of 68 total detections (2.9%)
Avg Distance from Port
9.6 NM — consistent with port proximity operations
🇺🇸 Mobile — Port Profile
1 detections · Avg score 0.6959 · Avg distance 40.6 NM
LOW RISK
Total Detections
1
Secondary port
Avg Alert Score
0.6959
Avg Distance NM
40.6
Port proximity zone
Detection Types at Mobile
ZIGZAG
1
Coordinates: 30.694°N, 88.044°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
1 of 68 total detections (1.5%)
Avg Distance from Port
40.6 NM — consistent with port proximity operations
Ownership Intelligence
MMSI registry · Flag state analysis · Beneficial ownership investigation
Vessel Name
STEPHEN DANN
MMSI
367686910
Flag State (MMSI-derived)
🇺🇸 US
MID Code
367 → 🇺🇸 US
Primary Port
New York
Detection Period
10 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
Within or near physical limits for vessel type
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)