HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)LowContained

Tolin Mechanical Systems Company LLC

bd_ddd6bf7e3a7c93c0 · schema v1 · pii pii-v2

Severity

Low

Discovered

Dec 3, 2024

Filed

Apr 25, 2025

To disclose

—

Affected

Not disclosed

Linked

2 filings

Confidence

66%

Full breach record for Tolin Mechanical Systems Company LLC →

Tolin Mechanical Systems Company, LLC experienced a security incident resulting in unauthorized access to personnel records. The breach occurred between March 16, 2024, and December 3, 2024. Affected data includes names and contact information of current and former employees, dependents, and beneficiaries. Tolin notified law enforcement, secured systems, and offered one year of Equifax credit monitoring.

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Incident timeline

undetected · 262 days

Mar 16, 2024

Begins

Dec 3, 2024

Discovered

Apr 25, 2025

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

Indiana State AGbd_e99c8e76c39ee1f62025-04-25Candidate

Name: Tolin Mechanical Systems Company LLC
norm: tolin mechanical

Name: Tolin Mechanical Systems Company LLC
norm: tolin mechanical
Industry: Professional Servicesllm

Discovered: Dec 3, 2024
Breach occurred: Mar 16, 2024 – Dec 3, 2024
Undetected for: 262 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: notify law enforcement
Initial access: valid_credentials

During the incident: Mobilized resources to investigate the situation
Notify law enforcement
Secure our systems
Conducting an in-depth review of these records
Completed this review earlier this month
Offering a complimentary one-year membership to Equifax CompleteTM Premier
Changes made: Offering a complimentary one-year membership to Equifax CompleteTM Premier
Source: Quoted from the filing itself, not independently verified.

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 ↗

Indiana State AGApr 25 · first

Nebraska State AGApr 25 · 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://nebraska.gov/ago/data-breach/documents/82a37377-2c59-430f-9ec3-2200abc898f3.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 25, 2025
Raw hash: 684dded5fe2807fff8f41afa806d6704d8823fa35abe119e1878a921ca6c82ab

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityTolin Mechanical Systems Company LLC

Victim entityTolin Mechanical Systems Company LLC

Incidentdiscovered Dec 3, 2024

Stated responseMobilized resources to investigate the situation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov