DisclosureLens
CONNECTICUTHackingHealthcareHealthcarePIIPHIIdentity (basic)Government IDCriticalResolved

Yale New Haven Health System

bd_be53ab2d57679e9e · schema v1 · pii pii-v1

Severity

Critical

Discovered

—

Filed

Apr 11, 2025

To disclose

—

Affected

5,556,702

Linked

2 filings

Confidence

91%

Yale New Haven Health System (CT, healthcare provider) reported to HHS OCR a hacking/IT incident affecting a network server that compromised PHI of 5,556,702 individuals. Data elements included names, dates of birth, addresses, and Social Security numbers. The entity notified HHS, affected individuals, the media, and provided substitute notice, and implemented additional administrative, technical, and security safeguards. The OCR Wall of Shame entry indicates no business associate was involved.

HIPAA clock✓ HHS notified
⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.
⚠ No discovery dateThe OCR public portal omits the discovery date, so the 60-day notification clock cannot be evaluated from this source — only that the filing was submitted.

Incident timeline — partial

? — ?

Breach window unknown

Apr 11, 2025

Filed

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

This filing is one of 2 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Filing propagation · 2 filings · 2 states

View merged incident ↗
Massachusetts State AGApr 11 · first
HHS OCRApr 11 · first · this page

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.