MalwareConstructionConstructionRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedAuthenticationBiometricCredentialsFinancial accountHealth (basic)Identity (basic)Government IDPHIHighContained

Lydig Construction

bd_4639a1ce0b0054cf · schema v1 · pii pii-v1

Severity

High

Discovered

Jun 23, 2025

Filed

Dec 12, 2025

To disclose

25 weeks

Affected

2,397state residents only

Linked

3 filings

Confidence

70%

Full breach record for Lydig Construction →

Lydig Construction, Inc. reported a ransomware incident affecting 2,397 Washington residents. Unauthorized access occurred June 21-23, 2025. Data included names, SSNs, driver's licenses, financial accounts, biometrics, and PHI. Lydig notified law enforcement and offered 12 months of credit monitoring.

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Washington clock✗ WA AG >90d25 weeks discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 2 days

discovery → filing · 25 weeks / 172 days

Jun 21, 2025

Begins

Jun 23, 2025

Discovered

Dec 12, 2025

Filed

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteplaybd_3717433e9ef6b0f52025-07-03 · +161dVerified

Regulatory filings (1) · sorted by filing gap

Montana State AGbd_ad32f3aaabbc73f12025-12-12Verified

Name: Lydig Construction
norm: lydig construction
Domain: lydig.com
Industry: Construction

Name: Lydig Construction
norm: lydig construction
Domain: lydig.com
Industry: Construction
Industry: Constructionllm

Discovered: Jun 23, 2025
Breach occurred: Jun 21, 2025 – Jun 23, 2025
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Dec 12, 2025
Affected individuals: 2,397state-resident count only
Data types: Identity (basic)Government IDFinancial accountCredentialsBiometricHealth (basic)PHI
Data elements: NameSocial Security numberDriver's licence numberFinancial account numberDate of birthPassport numberHealth insurance IDMedical informationBiometric dataUsername + password
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 1-99dexposure 1-99d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: notified federal law enforcementproviding written notice of this incident to other relevant state regulators

During the incident: Promptly responded and launched an investigation
Conducted a thorough review of the files acquired
Notified federal law enforcement
Providing access to credit monitoring services for twelve (12) months through Epiq
Changes made: Working to implement additional safeguards and training to its employees
Continue to review 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: 25 weeks(172 days from discovery to filing)
Compliance flags: WA AG >90dLeak >90d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Montana State AGDec 12 · first

Washington State AGDec 12 · 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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA35863.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 12, 2025
Raw hash: 807a27355d59fea65f86ae5fd1c28445b4d51401d987da227ffc24ca8cab24ad

Linked disclosures

Ransomware claims (1)

Regulatory filings (1) · sorted by filing gap

Reporting entityLydig Construction

Victim entityLydig Construction

Incidentdiscovered Jun 23, 2025

Stated responsePromptly responded and launched an investigation

ComplianceWA AG >90d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com