MalwareTechnologyProfessional ServicesInformationRansomwareData ExfiltratedTargetedIdentity (basic)Government IDFinancial accountHealth (basic)MediumContained

Willdan Group, Inc.

bd_2422ed3baec98e33 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 15, 2020

Filed

Jun 11, 2021

To disclose

25 weeks

Affected

2state residents only

Linked

4 filings

Confidence

67%

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

Willdan Group, Inc. notified the NH AG of a cybercriminal attack on Dec 15, 2020, involving malware infection and potential unauthorized access to files. 2 NH residents affected. Data included names, SSNs, driver's licenses, financial accounts, and limited medical info. Willdan engaged forensic specialists, notified law enforcement, and provided 12 months of credit monitoring.

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Incident timeline

discovery → filing · 25 weeks / 178 days

Dec 15, 2020

Discovered

Jun 11, 2021

Filed

vs. sector median

+7 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Massachusetts State AGbd_880d998124a856a82021-06-04 · +7dVerified
Indiana State AGbd_c3a9a8650a89df6f2021-06-04 · +7dVerified
Maine State AGbd_e3646db493073cca2021-06-04 · +7dCandidate

Name: Mullen Coughlin LLC
norm: mullen coughlin

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

Discovered: Dec 15, 2020
Materiality determined: —
Notification sent: Jun 4, 2021
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General Consumer Protection Bureau

During the incident: Took systems offline
Launched an investigation into the nature and scope of the incident
Engaged leading third-party cyber-forensic specialists to assist in our investigation
Conducted a thorough and time-consuming review of its systems
Reported this incident to law enforcement and is cooperating with their investigation
Provided access to credit monitoring services for twelve (12) months
Changes made: Implementing 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: 25 weeks(178 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Massachusetts State AGJun 4 · first

Indiana State AGJun 4 · first

Maine State AGJun 4 · first

New Hampshire State AG+7d · this page

Pattern: first filing Jun 4 (MA), last Jun 11 (NH) — a 7-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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-20210611.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 11, 2021
Raw hash: e1d31e298a69069ba289713c270eea38304d8f61d1036d17fdaf1294a8c0f1cf

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityMullen Coughlin LLC

Victim entityWilldan Group, Inc.

Incidentdiscovered Dec 15, 2020

Stated responseTook systems offline

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov