MisuseProfessional ServicesProfessional ServicesData MishandlingTargetedEducationIdentity (basic)Government IDMediumContained

WILMER CUTLER PICKERING HALE AND DORR LLP

bd_cf0f594a0df80ee9 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 8, 2026

Filed

Jul 15, 2026

To disclose

10 weeks

Affected

692state residents only

Linked

14 filings

Confidence

71%

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

Wilmer Cutler Pickering Hale and Dorr LLP reported a data security incident on May 8, 2026, where an employee mistakenly provided personal information, including names and Social Security Numbers, to an unauthorized third party who misrepresented their identity. The firm notified law enforcement, engaged forensic experts, and is offering 24 months of credit monitoring to affected individuals.

J jump to incidentP pin to compareR raw source

Washington clock⏱ WA AG >30d10 weeks discovery → filing

⚠ occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

Incident timeline

discovery → filing · 10 weeks / 68 days

May 8, 2026

Begins

May 8, 2026

Discovered

Jul 15, 2026

Filed

vs. sector median

5 wks faster

This filing is one of 14 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Texas State AGbd_87849f3a47c4a66e2026-07-14 · +1dVerified
California State AGbd_0f58950e180387e02026-07-10 · +5dVerified
Nebraska State AGbd_2b7cb854d3868f872026-07-10 · +5dVerified
Massachusetts State AGbd_39ac1dd623acd6ee2026-07-10 · +5dVerified

Show 6 more filings ↓up to 37d gap

Massachusetts State AGbd_88b9137fcfba81da2026-07-10 · +5dCandidate
Oregon State AGbd_15ef8a8c27abbd122026-08-05 · +21dVerified
Delaware State AGbd_3c73f3086d75c2802026-08-12 · +28dVerified
South Carolina State AGbd_a050efd5df9ab64b2026-08-12 · +28dVerified
New Hampshire State AGbd_c3a9d4a1b18601522026-08-19 · +35dVerified
Texas State AGbd_d1414ddedb17a52d2026-08-21 · +37dVerified

Showing first 10 of 13 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 15, 2026
Affected individuals: 692state-resident count only
Data types: Identity (basic)Government ID
Data elements: NameSocial Security numberStudent ID numberDate of birth
WA-stated cause: Theft or Mistake
WA-stated duration: lifecycle 0dexposure 0d
WA-stated discovery: Found while ongoingContained same day
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified federal law enforcement authorities
Initial access: insider_action

During the incident: Promptly commenced an investigation
Retained leading forensic experts to assist us
Notified federal law enforcement authorities
Changes made: Offering a complimentary 24-month membership for credit monitoring and identity theft protection services through Experian
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 10 weeks(68 days from discovery to filing)
Compliance flags: WA AG >30d
Discovery-date grounding: occurrence dateThe stored discovery date equals the breach OCCURRENCE date. Detection is normally later, so this OVERSTATES the delay — a 'late' verdict here may not be real.

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

Texas State AG+4d

Washington State AG+5d · this page

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 13 — 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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachA41816.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 15, 2026
Raw hash: 9afccf5eef00d1bfbe312ed13a3fedd0f829da9846d9b508fc78464eca55c3ab

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 responsePromptly commenced an investigation

ComplianceWA AG >30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com