MalwareTechnologyProfessional ServicesInformationRansomwareCapture Stored DataData ExfiltratedData EncryptedTargetedIdentity (basic)Government IDFinancial accountHealth (basic)PHIMediumContained

Willdan Group, Inc.

bd_dafc8c7962bfe52b · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 15, 2020

Filed

Aug 23, 2021

To disclose

36 weeks

Affected

Confidence

67%

Full breach record for Willdan Group, Inc. →3 incidents on file

Willdan Group, Inc. issued a supplemental notice to the New Hampshire AG regarding a December 2020 malware incident. The breach affected 16 individuals (2 in NH, 14 in VA), exposing PII, SSNs, driver's licenses, financial accounts, and PHI. Willdan engaged forensic investigators, notified law enforcement, and provided 12 months of credit monitoring.

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Incident timeline

discovery → filing · 36 weeks / 251 days

Dec 15, 2020

Discovered

Aug 23, 2021

Filed

vs. sector median

+23 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed16 affectedView incident

Name: Willdan Group, Inc.
norm: willdan group

Name: Willdan Group, Inc.
norm: willdan group
Industry: TechnologyllmProfessional Servicesllm

Discovered: Dec 15, 2020
Materiality determined: —
Notification sent: Jun 4, 2021
Affected individuals: 16state + nationwide
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General Consumer Protection BureauCooperating with law enforcement investigation

During the incident: Took systems offline
Engaged leading third-party cyber-forensic specialists to assist in our investigation
Reported this incident to law enforcement and is cooperating with their investigation
Provided access to credit monitoring services for twelve (12) months, through American Identity Group
Changes made: Implemented additional safeguards and training to its employees
Reviewing existing security policies
Implemented additional cybersecurity measures to further protect against similar incidents moving forward
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 36 weeks(251 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/willdan-group-20210823.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 23, 2021
Raw hash: bd0abd9d7f4ed4bd8eaad75eceb4bc5f5329b444e12689f85cea1e89629e83a8

Reporting entityWilldan Group, Inc.

Victim entityWilldan Group, Inc.

Incidentdiscovered Dec 15, 2020

Stated responseTook systems offline

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov