HackingTransportation & LogisticsTransportationData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Keystone Shipping

bd_dcd977c2ac04ab21 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Jul 22, 2025

To disclose

—

Affected

4state residents only

Linked

6 filings

Confidence

66%

Full breach record for Keystone Shipping →

Keystone Shipping Co. notified the NH Attorney General of unauthorized access to its computer network on June 3, 2025. The company confirmed on June 20, 2025, that the incident affected four New Hampshire residents, exposing their names and Social Security numbers. Notification letters were sent on July 21, 2025. The company engaged external cybersecurity firms, reported to law enforcement, and is offering one year of credit monitoring.

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Leak gap clock⏱ Leak >30d

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

Incident timeline

Jun 3, 2025

Begins

Jul 22, 2025

Filed

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Siteakirabd_689cba8dfad9bdc92025-06-03 · +49dVerified by operator
Leak Siteakirabd_5e4fb852925299342025-06-02 · +50dVerified

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_0d940d48fec3e4a82025-07-22Verified by operator
Maine State AGbd_283c7580fdfecbe12025-07-22Verified
Indiana State AGbd_072c1e4c8bf85c422025-07-21 · +1dVerified

Name: Keystone Shipping
norm: keystone shipping
Domain: keyship.com

Name: Keystone Shipping
norm: keystone shipping
Domain: keyship.com
Industry: Transportation & Logisticsllm

Discovered: —
Breach occurred: Jun 3, 2025
Materiality determined: —
Notification sent: Jul 21, 2025
Affected individuals: 4state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unknown
MITRE ATT&CK: T1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified Attorney General John Formella, Office of the Attorney General, NH

During the incident: Took measures to secure its network
Commenced an investigation with assistance from external cybersecurity firms
Reported the incident to law enforcement
Sent notification letters via U.S. First-Class mail to the New Hampshire residents
Offering the notice recipients one year of complimentary credit monitoring and identity theft restoration services through IDX
Established a toll-free call center to answer any questions notified individuals may have
Changes made: Taken steps to enhance its existing security protocols
Source: Quoted from the filing itself, not independently verified.

Compliance flags: Leak >30d
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 · 4 filings · 4 states

View merged incident ↗

Indiana State AGJul 21 · first

Massachusetts State AG+1d

Maine State AG+1d

New Hampshire State AG+1d · 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://mm.nh.gov/files/uploads/doj/remote-docs/keystone-shipping-20250722.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 22, 2025
Raw hash: 60586d0d9d28b728ba520117c5122de7b8867d63394372567971dd500b6d4365

Linked disclosures

Ransomware claims (2)

Regulatory filings (3) · sorted by filing gap

Reporting entityKeystone Shipping

Victim entityKeystone Shipping

IncidentUnknown

Stated responseTook measures to secure its network

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov