Social EngineeringHealthcareProfessional ServicesHealthcarePhishingData ExfiltratedCustomer Data InvolvedMulti-Stage ChainIdentity (basic)Government IDHealth (basic)Financial accountMediumContained

HUMANA INC.

bd_340755f98cffa704 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 1, 2025

Filed

Jun 12, 2026

To disclose

28 weeks

Affected

1state residents only

Linked

16 filings

Confidence

66%

Full breach record for HUMANA INC. →40 incidents on file

Humana Inc. notified the New Hampshire Attorney General of a security incident involving its law firm, Pillsbury Winthrop Shaw Pitman LLP. In April 2025, Pillsbury was targeted by social engineering (phishing). An unauthorized actor downloaded Humana litigation documents containing PHI, PII, and financial data. Discovery occurred in December 2025. One NH resident was affected. Notifications were sent in June 2026, offering 24 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Leak gap clock✗ Leak >180d28 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 244 days

discovery → filing · 28 weeks / 193 days

Apr 1, 2025

Begins

Dec 1, 2025

Discovered

Jun 12, 2026

Filed

vs. sector median

+15 wks slower

This filing is one of 16 about the same incident.View merged incident

A leak claim by cl0p about this victim predates this filing by 202 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Massachusetts State AGbd_60905841e9eb00ec2026-06-12Verified by operator
Texas State AGbd_bb1cc89a278c171c2026-06-18 · +6dVerified by operator
Nebraska State AGbd_960ec039543338a62026-06-01 · +11dVerified
HHS OCRbd_1b2396b69d25cc382026-05-15 · +28dVerified

Show 6 more filings ↓up to 86d gap

Illinois State AGbd_7c6eea2e34a068c22026-05-01 · +42dVerified
Illinois State AGbd_8ed01c44f5316bd22026-05-01 · +42dVerified
Idaho State AGbd_9d83c93a948631422026-04-30 · +43dVerified by operator
Texas State AGbd_22aeccc5358a90112026-04-24 · +49dVerified by operator
Idaho State AGbd_52560034b40b0f2a2026-03-27 · +77dVerified
Massachusetts State AGbd_d3125512bb3bdc782026-03-18 · +86dVerified

Showing first 10 of 15 linked disclosures.

Name: PILLSBURY WINTHROP SHAW PITTMAN LLP
norm: pillsbury winthrop shaw pittman

Name: HUMANA INC.
norm: humana
Domain: humana.com
Industry: HealthcarellmProfessional Servicesllm

Discovered: Dec 1, 2025
Breach occurred: Apr 1, 2025 – Apr 30, 2025
Undetected for: 244 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jun 1, 2026
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDHealth (basic)Financial account
Data elements: Social Security number
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Attorney General's Office
Initial access: phishing_link

During the incident: Notified law enforcement
Began an investigation with assistance from a third-party forensic firm
Added more safety steps to protect its systems
Sent notification letters to the one New Hampshire state resident
Changes made: Making security stronger
Checking the systems to improve security monitoring and controls
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 weeks(193 days from discovery to filing)
Compliance flags: Leak >180d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 11 filings · 7 states

View merged incident ↗

Massachusetts State AGMar 18 · first

Idaho State AG+9d

Texas State AG+37d

Idaho State AG+43d

Illinois State AG+44d

HHS OCR+58d

Nebraska State AG+75d

Massachusetts State AG+86d

New Hampshire State AG+86d · this page

Texas State AG+92d

Pattern: first filing Mar 18 (MA), last Jun 18 (TX) — a 92-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 15 — 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/pillsbury-winthrop-shaw-pitman-20260612.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 12, 2026
Raw hash: 6c9300e696c5e8a049687bca256a046de6187810f063d38c32391bef237c2680

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityPILLSBURY WINTHROP SHAW PITTMAN LLP

Victim entityHUMANA INC.

Incidentdiscovered Dec 1, 2025

Stated responseNotified law enforcement

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov