HackingTransportation & LogisticsTransportationCapture Stored DataData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedPIIIdentity (basic)Government IDMediumContained

Overseas Shipholding Group, Inc.

bd_700f147321d34c86 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Dec 2, 2024

To disclose

—

Affected

Not disclosed

Linked

9 filings

Confidence

67%

Full breach record for Overseas Shipholding Group, Inc. →

Overseas Shipholding Group, Inc. (OSG) experienced unauthorized access to certain computer systems on August 5, 2024. An unauthorized actor accessed and/or took files containing names, Social Security numbers, passport numbers, Merchant Mariner credential numbers, and/or Transportation Worker identification credential information. OSG secured involved systems, conducted an investigation concluding October 28, 2024, and offered one year of Equifax credit monitoring to affected individuals.

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Leak gap clock⏱ Leak >90d

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Incident timeline

Aug 5, 2024

Begins

Dec 2, 2024

Filed

This filing is one of 9 about the same incident.View merged incident

A leak claim by ransomhub about this victim predates this filing by 104 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteransomhubbd_a666c19b8e023ed12024-08-19 · +104dVerified by operator

Regulatory filings (7) · sorted by filing gap

Maine State AGbd_0e1d268849e71eef2024-12-02Verified by operator
Vermont State AGbd_4572f9d6af857ada2024-12-02Verified by operator
Massachusetts State AGbd_517c65309ffc4f472024-12-02Verified by operator
Montana State AGbd_6a3b10a50aac26542024-12-02Verified

Show 3 more filings ↓

Washington State AGbd_ab04de904f82bc8a2024-12-02Verified by operator
Indiana State AGbd_c0ea9d11d663ec592024-12-02Verified by operator
New Hampshire State AGbd_f56f78da8d95bfa42024-12-02Verified by operator

Name: Overseas Shipholding Group, Inc.
norm: overseas shipholding
Domain: osg.com

Name: Overseas Shipholding Group, Inc.
norm: overseas shipholding
Domain: osg.com
Industry: Transportation & Logisticsllm

Discovered: —
Breach occurred: Aug 5, 2024
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated CollectionT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial

During the incident: Immediately secured the involved systems and launched an investigation
Reviewed the files to determine what personal information was contained
Arranged for affected individuals to receive a complimentary one-year membership to credit monitoring services
Changes made: Implemented additional security measures to enhance the security of our network
Source: Quoted from the filing itself, not independently verified.

Compliance flags: Leak >90d
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 8 states

View merged incident ↗

Maine State AGDec 2 · first

Vermont State AGDec 2 · first

Massachusetts State AGDec 2 · first

Montana State AGDec 2 · first

Washington State AGDec 2 · first

Indiana State AGDec 2 · first

New Hampshire State AGDec 2 · first

California State AGDec 2 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://oag.ca.gov/ecrime/databreach/reports/sb24-595514
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 2, 2024
Raw hash: c72ebe0818e996ae8522eb2732b8980cb2529c3fd9b441a1a55f09080a8cb13c

Linked disclosures

Ransomware claims (1)

Regulatory filings (7) · sorted by filing gap

Reporting entityOverseas Shipholding Group, Inc.

Victim entityOverseas Shipholding Group, Inc.

IncidentUnauthorized Access

Stated responseImmediately secured the involved systems and launched an investigation

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov