DisclosureLens
UnknownProfessional ServicesProfessional ServicesCustomer Data InvolvedIdentity (basic)Government IDHighContained

WILMER CUTLER PICKERING HALE AND DORR LLP

bd_c3a9d4a1b1860152 · schema v1 · pii pii-v2

Severity

High

Discovered

—

Filed

Aug 19, 2026

To disclose

—

Affected

3,128state residents only

Linked

15 filings

Confidence

66%
Full breach record for WILMER CUTLER PICKERING HALE AND DORR LLP →

Wilmer Cutler Pickering Hale and Dorr LLP submitted a supplemental breach notification to the New Hampshire Attorney General, updating the count of affected residents. As of August 19, 2026, the firm had mailed notices to 3,128 New Hampshire residents whose personal information (name, date of birth, Social Security number) may have been involved in a security incident. The data was obtained during the provision of legal services to clients. The firm states it is unaware of further disclosure or misuse.

Incident timeline — partial

? — ?

Breach window unknown

Aug 19, 2026

Filed

No interval is drawn: no breach start or discovery date is on record for this filing.

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

Show 6 more filings ↓up to 40d gap

Showing first 10 of 14 linked disclosures.

Filing propagation · 11 filings · 9 states

View merged incident ↗
California State AGJul 10 · first
Nebraska State AGJul 10 · first
Massachusetts State AGJul 10 · first
Massachusetts State AGJul 10 · first
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 · this page
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.