HackingEnergy & UtilitiesProfessional ServicesUtilitiesVulnerability ExploitSupply Chain (3P Vendor)Data ExfiltratedIdentity (basic)Government IDMediumContained

Neste USA, Inc

bd_288c64598bacc330 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 30, 2023

Filed

Dec 27, 2023

To disclose

27 days

Affected

1state residents only

Linked

2 filings

Confidence

66%

Full breach record for Neste USA, Inc →

Neste USA, Inc. notified Montana residents that its vendor, Paycor Inc., experienced a data security incident involving the MOVEit file-transfer software. Paycor was attacked via an unknown vulnerability on May 31, 2023. Neste learned of the incident on November 30, 2023. Paycor informed Neste that customers' names, dates of birth, and Social Security numbers may have been accessed. Neste is offering credit monitoring services.

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Incident timeline

undetected · 183 days

discovery → filing · 27 days

May 31, 2023

Begins

Nov 30, 2023

Discovered

Dec 27, 2023

Filed

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_b0af18f2df8ab4432023-12-27Verified

Name: Neste USA, Inc
norm: neste usa

Name: Neste USA, Inc
norm: neste usa
Industry: Energy & UtilitiesllmProfessional Servicesllm

Discovered: Nov 30, 2023
Breach occurred: May 31, 2023
Undetected for: 183 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security numberDate of birth
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: ExternalFinancial
Third party: via Paycor Inc.
Initial access: exploit_public_facing

During the incident: Paycor applied the appropriate patches provided by Progress Software Corporation
Neste has made the decision to move to another vendor
Changes made: Offering 12/24 months credit monitoring and identity protection services at no cost through Cyberscout
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 27 days(27 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Massachusetts State AGDec 27 · first

Montana State AGDec 27 · 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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-980.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 27, 2023
Raw hash: 3a7c2bd709c5f4f4c0dd87a2eceb9edba667b0cac9ad1ed08e58ecb8727550e9

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityNeste USA, Inc

Victim entityNeste USA, Inc

Incidentdiscovered Nov 30, 2023

Stated responsePaycor applied the appropriate patches provided by Progress Software Corporation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov