MalwareFinancial ServicesTechnologyFinanceRansomwareVulnerability ExploitCapture Stored DataAkiraData ExfiltratedData EncryptedTargetedActor NamedIdentity (basic)Government IDFinancial accountFinancial credentialsMediumContained

WCAS MANAGEMENT CORPORATION

bd_c2bdf578840cee33 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Aug 1, 2025

Filed

Oct 22, 2025

To disclose

12 weeks

Affected

1state residents only

Linked

3 filings

Confidence

66%

Full breach record for WCAS MANAGEMENT CORPORATION →

WCAS Management, L.P. notified the NH Attorney General of a ransomware attack by the Akira group. The incident occurred July 31-Aug 1, 2025, exploiting a SonicWall VPN vulnerability. One NH resident's data (PII, SSN, financial info) was exfiltrated. WCAS isolated systems, engaged forensics, and notified law enforcement. Notifications sent Oct 22, 2025, with 24-month credit monitoring.

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Incident timeline

undetected · 1 days

discovery → filing · 12 weeks / 82 days

Jul 31, 2025

Begins

Aug 1, 2025

Discovered

Oct 22, 2025

Filed

vs. sector median

+3 wks slower

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

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_48545567d2ec61172025-10-22Verified
Maine State AGbd_7509db280bf0f68a2025-10-22Candidate

Name: ROPES & GRAY LLP
norm: ropes gray

Name: WCAS MANAGEMENT CORPORATION
norm: wcas management
Industry: Financial ServicesllmTechnologyllm

Discovered: Aug 1, 2025
Breach occurred: Jul 31, 2025 – Aug 1, 2025
Undetected for: 1 dayoccurrence → discovery
Materiality determined: —
Notification sent: Oct 22, 2025
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDFinancial accountFinancial credentials
Data elements: Social Security numberDate of birth
Attack vector: Ransomware· Akira
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 ChannelT1190 Exploit Public-Facing Application
Threat actor: AkiraExternalFinancial
Regulator citations: Notified New Hampshire Attorney General
Initial access: exploit_public_facing

During the incident: Immediately isolated affected systems
Initiated an incident response protocol using internal and external resources
Engaged outside cybersecurity and forensics experts
Notified federal law enforcement
Conducted a comprehensive review of its internal network
Assisted with containment and eradication of the threat actor
Engaged a third party to conduct dark web monitoring
Changes made: Took additional steps to further safeguard its systems and information
Offering two years of complimentary credit monitoring and identity protection services
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 12 weeks(82 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGOct 22 · first

Maine State AGOct 22 · first

New Hampshire State AGOct 22 · 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://mm.nh.gov/files/uploads/doj/remote-docs/wcas-management-20251022.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 22, 2025
Raw hash: 44e261c6809f51d17f0c69ec679b054a8b937ec7c1b1155855a715745491452d

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityROPES & GRAY LLP

Victim entityWCAS MANAGEMENT CORPORATION

Incidentdiscovered Aug 1, 2025

Stated responseImmediately isolated affected systems

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov