Social EngineeringHealthcareProfessional ServicesHealthcarePhishingStolen CredentialsMulti-Stage ChainData ExfiltratedTargetedPIIOtherLowActive

HUMANA INC.

bd_9d83c93a94863142 · schema v1 · pii pii-v1

Severity

Low

Discovered

Feb 27, 2026

Filed

Apr 30, 2026

To disclose

9 weeks

Affected

Not disclosed

Linked

16 filings

Confidence

67%

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

Humana Inc reported a security incident on April 22, 2026, notifying the Idaho AG. On Feb 27, 2026, outside counsel for the plaintiff in AAAPC v. Humana (Pillsbury Winthrop Shaw Pittman LLP) suffered a breach via social engineering/phishing. An unauthorized actor accessed a file server containing Humana discovery documents and exfiltrated materials. The event was under investigation as of filing.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >90d9 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

discovery → filing · 9 weeks / 62 days

Feb 27, 2026

Discovered

Apr 30, 2026

Filed

vs. sector median

4 wks faster

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 159 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Illinois State AGbd_7c6eea2e34a068c22026-05-01 · +1dVerified
Illinois State AGbd_8ed01c44f5316bd22026-05-01 · +1dVerified
Texas State AGbd_22aeccc5358a90112026-04-24 · +6dVerified by operator
HHS OCRbd_1b2396b69d25cc382026-05-15 · +15dVerified

Show 6 more filings ↓up to 49d gap

Nebraska State AGbd_960ec039543338a62026-06-01 · +32dVerified
Idaho State AGbd_52560034b40b0f2a2026-03-27 · +34dVerified
New Hampshire State AGbd_340755f98cffa7042026-06-12 · +43dVerified by operator
Massachusetts State AGbd_60905841e9eb00ec2026-06-12 · +43dVerified by operator
Massachusetts State AGbd_d3125512bb3bdc782026-03-18 · +43dVerified
Texas State AGbd_bb1cc89a278c171c2026-06-18 · +49dVerified by operator

Showing first 10 of 15 linked disclosures.

Name: HUMANA INC.
norm: humana
Domain: humana.com

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

Discovered: Feb 27, 2026
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PIIOther
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1566.002 Spearphishing LinkT1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified Idaho Office of the Attorney General
Third party: via Pillsbury Winthrop Shaw Pittman LLP
Initial access: phishing_link

During the incident: Dechert LLP notified Humana
Event is still under investigation
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(62 days from discovery to filing)
Compliance flags: Leak >90d
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 · this page

Illinois State AG+44d

HHS OCR+58d

Nebraska State AG+75d

New Hampshire State AG+86d

Massachusetts State AG+86d

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://www.ag.idaho.gov/content/uploads/2026/04/2026.04.22-Humana.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 30, 2026
Raw hash: 21624c1a396cdb5b86fa4b4bb321da0b620570a63e7da374d3037309db1e899f

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entityHUMANA INC.

Victim entityHUMANA INC.

Incidentdiscovered Feb 27, 2026

Stated responseDechert LLP notified Humana

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancewww.ag.idaho.gov