Social EngineeringProfessional ServicesProfessional ServicesPretextingCustomer Data InvolvedIdentity (basic)Government IDMediumContained

WILMER CUTLER PICKERING HALE AND DORR LLP

bd_a307582915e1b0dc · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 8, 2026

Filed

Jul 10, 2026

To disclose

9 weeks

Affected

35state residents only

Linked

15 filings

Confidence

64%

Full breach record for WILMER CUTLER PICKERING HALE AND DORR LLP →

Wilmer Cutler Pickering Hale and Dorr LLP notified the NH Attorney General that on May 8, 2026, an employee mistakenly provided personal information, including Social Security Numbers, to an unauthorized third party who misrepresented their identity. The incident was contained on the same day. Approximately 35 New Hampshire residents were affected. The firm engaged forensic experts, notified law enforcement, and is offering two years of credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 9 weeks / 63 days

May 8, 2026

Begins

May 8, 2026

Discovered

Jul 10, 2026

Filed

vs. sector median

10 wks faster

This filing is one of 15 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

California State AGbd_0f58950e180387e02026-07-10Verified
Nebraska State AGbd_2b7cb854d3868f872026-07-10Verified
Massachusetts State AGbd_39ac1dd623acd6ee2026-07-10Verified
Texas State AGbd_87849f3a47c4a66e2026-07-14 · +4dVerified

Show 6 more filings ↓up to 42d gap

Washington State AGbd_cf0f594a0df80ee92026-07-15 · +5dVerified
Oregon State AGbd_15ef8a8c27abbd122026-08-05 · +26dVerified
Delaware State AGbd_3c73f3086d75c2802026-08-12 · +33dVerified
South Carolina State AGbd_a050efd5df9ab64b2026-08-12 · +33dVerified
New Hampshire State AGbd_c3a9d4a1b18601522026-08-19 · +40dVerified
Texas State AGbd_d1414ddedb17a52d2026-08-21 · +42dVerified

Showing first 10 of 14 linked disclosures.

Name: WILMER CUTLER PICKERING HALE AND DORR LLP
norm: wilmer cutler pickering hale and dorr

Name: WILMER CUTLER PICKERING HALE AND DORR LLP
norm: wilmer cutler pickering hale and dorr
Industry: Professional Servicesllm

Discovered: May 8, 2026
Breach occurred: May 8, 2026
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 10, 2026
Affected individuals: 35state-resident count only
Data types: Identity (basic)Government ID
Data elements: Social Security numberDate of birth
Attack vector: Unknown
Threat actor: External
Regulator citations: Notified federal law enforcement authorities

During the incident: Commenced an investigation
Retained leading forensic experts to assist
Notified federal law enforcement authorities
Communicating with impacted parties
Assessing applicable notification obligations
Changes made: Providing additional security awareness training
Deploying additional security measures and tools with the guidance of third-party cybersecurity experts
Providing two years of complimentary credit monitoring and identity theft protection services through Experian
Established a dedicated call center through Experian to answer questions
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(63 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 9 states

View merged incident ↗

California State AGJul 10 · first

Nebraska State AGJul 10 · first

Massachusetts State AGJul 10 · first

New Hampshire State AGJul 10 · first · this page

Texas State AG+4d

Washington State AG+5d

Oregon State AG+26d

Delaware State AG+33d

South Carolina State AG+33d

New Hampshire State AG+40d

Texas State AG+42d

Pattern: first filing Jul 10 (CA), last Aug 21 (TX) — a 42-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 14 — the full spread may be wider.

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/wilmer-culter-pickering-hale-dorr-20260710.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 10, 2026
Raw hash: fb1544bbd10ba82b72bb3e71f277834293f742c54f9ac1e16d374b7b64b4d67e

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityWILMER CUTLER PICKERING HALE AND DORR LLP

Victim entityWILMER CUTLER PICKERING HALE AND DORR LLP

Incidentdiscovered May 8, 2026

Stated responseCommenced an investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov