HackingManufacturingManufacturingStolen CredentialsData ExfiltratedIdentity (basic)Government IDHealth (basic)Financial accountMediumContained

Boart Longyear Limited

bd_a8db7dc04c0a3d12 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 31, 2024

Filed

Mar 6, 2025

To disclose

27 weeks

Affected

Not disclosed

Linked

5 filings

Confidence

66%

Full breach record for Boart Longyear Limited →2 incidents on file

Boart Longyear notified consumers of a cybersecurity incident where an unauthorized actor accessed files containing personal information between June 29 and August 31, 2024. Data involved names, SSNs, government IDs, medical info, and financial accounts. Boart Longyear engaged a cybersecurity firm, secured its network, and offered two years of Experian credit monitoring.

J jump to incidentP pin to compareR raw source

Vermont clock✗ VT AG >45 bday27 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 63 days

discovery → filing · 27 weeks / 187 days

Jun 29, 2024

Begins

Aug 31, 2024

Discovered

Mar 6, 2025

Filed

vs. sector median

+16 wks slower

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Maine State AGbd_1dfce352b8e470dc2025-03-07 · +1dCandidate
New Hampshire State AGbd_1e4efe29bb39f3862025-03-07 · +1dVerified
Massachusetts State AGbd_61e703a1bca591d52025-03-07 · +1dVerified
Maryland State AGbd_dab2cdba014b34902025-03-07 · +1dVerified

Name: Boart Longyear Limited
norm: boart longyear-au

Name: Boart Longyear Limited
norm: boart longyear-au
Industry: Manufacturingllm

Discovered: Aug 31, 2024
Breach occurred: Jun 29, 2024 – Aug 31, 2024
Undetected for: 63 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 6, 2025
Affected individuals: Not disclosed
Data types: Identity (basic)Government IDHealth (basic)Financial account
Data elements: Social Security numberMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Initial access: valid_credentials

During the incident: Took steps to secure our network
Commenced an investigation
A cybersecurity firm was engaged to assist
Implemented additional security measures to enhance our existing cybersecurity protocols
Offering you a complimentary two-year subscription to credit and/or identity monitoring services through Experian’s® IdentityWorks Credit 3B
Changes made: Implemented additional security measures to enhance our existing cybersecurity protocols
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 27 weeks(187 days from discovery to filing)
Compliance flags: VT AG >45 bday
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Vermont State AGMar 6 · first · this page

Maine State AG+1d

New Hampshire State AG+1d

Massachusetts State AG+1d

Maryland State AG+1d

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://ago.vermont.gov/document/2025-03-06-boart-longyear-group-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 6, 2025
Raw hash: f76ccbdbefddbeffb8ffea345f54b762e6e62454645488993f6560404ea2a38e

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityBoart Longyear Limited

Victim entityBoart Longyear Limited

Incidentdiscovered Aug 31, 2024

Stated responseTook steps to secure our network

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov