HackingTransportation & LogisticsTransportationData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDPHIHealth (basic)HighContained

Matson Navigation Company

bd_d59e37baa4f5b92d · schema v1 · pii pii-v1

Severity

High

Discovered

Oct 14, 2020

Filed

Dec 1, 2020

To disclose

7 weeks

Affected

2,991state residents only

Linked

9 filings

Confidence

67%

Full breach record for Matson Navigation Company →3 incidents on file

Matson Navigation Company notified Washington AG of a cyberattack discovered on Oct 14, 2020. Attacker accessed network parts. Data exposed: names, DOBs, SSNs, health insurance info. 2,991 WA residents notified. Matson engaged forensic/legal teams, cut access, reported to law enforcement, and provided 1 year of credit monitoring.

J jump to incidentP pin to compareR raw source

Washington clock⏱ WA AG >30d7 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

discovery → filing · 7 weeks / 48 days

Oct 14, 2020

Discovered

Dec 1, 2020

Filed

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

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

New Hampshire State AGbd_23c044499321c07f2020-12-03 · +2dVerified
Maine State AGbd_3ad3ae761c87797b2021-01-02 · +32dVerified
Indiana State AGbd_6eabfd4152dda5682020-10-30 · +32dVerified
Montana State AGbd_958d4765c5a9c5a82020-10-30 · +32dCandidate

Show 4 more filings ↓up to 36d gap

Maine State AGbd_25878eec46c86a8e2021-01-04 · +34dVerified
California State AGbd_6b8c99467add88b12021-01-04 · +34dVerified
Massachusetts State AGbd_7c70cf43623e958b2021-01-04 · +34dVerified
Oregon State AGbd_55f92f0e8b0b2b7b2021-01-06 · +36dVerified

Name: Gibson, Dunn, & Crutcher LLP
norm: gibson dunn crutcher

Name: Matson Navigation Company
norm: matson navigation
Industry: Transportation & Logisticsllm

Discovered: Oct 14, 2020
Materiality determined: —
Notification sent: Oct 30, 2020
Affected individuals: 2,991state-resident count only
Data types: Identity (basic)Government IDPHI
Data elements: NameSocial Security numberDate of birthHealth insurance ID
WA-stated cause: Cyberattack
WA-stated duration: lifecycle Unknowndexposure Unknownd
WA-stated discovery: Found after the fact
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified Office of the Attorney General of Washington
Initial access: exploit_public_facing

During the incident: Hired leading forensics, cyber-recovery first responder, credit reporting, and legal teams
Cut off the attacker's access
Reported the incident to law enforcement and is cooperating with their investigation
Mailed written notification to all impacted individuals
Retained a third-party specialist in identity theft protection
Changes made: Offering one year of identity protection services, including credit monitoring, free of charge
Restoring systems and ensuring that those systems are clean
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(48 days from discovery to filing)
Compliance flags: WA AG >30d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 8 states

View merged incident ↗

Indiana State AGOct 30 · first

Montana State AGOct 30 · first

Washington State AG+32d · this page

New Hampshire State AG+34d

Maine State AG+64d

Maine State AG+66d

California State AG+66d

Massachusetts State AG+66d

Oregon State AG+68d

Pattern: first filing Oct 30 (IN), last Jan 6 (OR) — a 68-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachM10363.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 1, 2020
Raw hash: 3df58b555dae88a8b1b23e9b803f834c99e9a1e1bc3ba24acad16098ae62cb9d

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityGibson, Dunn, & Crutcher LLP

Victim entityMatson Navigation Company

Incidentdiscovered Oct 14, 2020

Stated responseHired leading forensics, cyber-recovery first responder, credit reporting, and legal teams

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com