MalwareProfessional ServicesProfessional ServicesRansomwareCapture Stored DataData EncryptedData ExfiltratedEmployee Data InvolvedPIIIdentity (basic)Government IDEmploymentMediumContained

U.S. Electrical Services, Inc.

bd_ed5c5d8ac80c6448 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Mar 19, 2024

Filed

Dec 30, 2024

To disclose

41 weeks

Affected

2state residents only

Confidence

66%

Full breach record for U.S. Electrical Services, Inc. →

U.S. Electrical Services, Inc. dba Wiedenbach Brown experienced a malware incident on March 19, 2024, where an unauthorized actor accessed systems storing employee and business partner information. The malware prevented access to certain files, and files were downloaded. Two New Hampshire residents were notified on December 30, 2024. The company engaged in investigation, notified law enforcement, and is offering credit monitoring.

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Incident timeline

discovery → filing · 41 weeks / 286 days

Mar 19, 2024

Begins

Mar 19, 2024

Discovered

Dec 30, 2024

Filed

vs. sector median

+21 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed2 affectedView incident

Name: U.S. Electrical Services, Inc.
norm: us electrical

Name: U.S. Electrical Services, Inc.
norm: us electrical
Also named: U.S. Electrical Services, Inc.dba oflegal entity
Wiedenbach Browndba oftrade name
Industry: Professional Servicesllm

Discovered: Mar 19, 2024
Breach occurred: Mar 19, 2024
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 30, 2024
Affected individuals: 2state-resident count only
Data types: PIIIdentity (basic)Government IDEmployment
Attack vector: Unknown
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Provided written notice to two New Hampshire residentsProviding written notice of this incident to relevant state regulators, as necessary

During the incident: Launched an investigation
Notified federal law enforcement regarding the event
Confirming the security of our systems
Reviewing the contents of relevant data for sensitive information
Notifying impacted individuals associated with that sensitive information
Offering complimentary access to credit monitoring services through Cyberscout
Changes made: Working to implement additional safeguards and training to its employees
Reviewing our policies, procedures, and processes related to the storage and access of personal information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 41 weeks(286 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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/wiedenbach-brown-20241230.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 30, 2024
Raw hash: 091632a69461797b9146738c08f3e78c35526dd266aac7c6d56626d3bcd5cb8c

Reporting entityU.S. Electrical Services, Inc.

Victim entityU.S. Electrical Services, Inc.

Incidentdiscovered Mar 19, 2024

Stated responseLaunched an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov