DisclosureLens
HackingHealthcareHealthcareStolen CredentialsCustomer Data InvolvedPHIIdentity (basic)Government IDMediumContained

Cornerstone Care Center

bd_c4d7b6cdaf74cc3d · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 7, 2026

Filed

May 7, 2026

To disclose

4 weeks

Affected

Not disclosed

Linked

2 filings

Confidence

65%
Full breach record for Cornerstone Care Center

Sanger Skilled Care, LLC dba Cornerstone Care Center notified the California Attorney General of an incident where unauthorized activity involving one user account was detected on April 7, 2026. The organization contained the incident and engaged a forensic firm. Investigation determined that Protected Health Information (PHI) may have been accessed by an unauthorized third party. No evidence of misuse was found. Affected individuals were offered 12 months of complimentary credit monitoring.

California clockDiscovered Apr 7, 2026Notified May 7, 202630d CA 30-day OK4 weeks discovery → filing

Incident timeline

discovery → filing · 4 weeks / 30 days

Apr 7, 2026

Begins

Apr 7, 2026

Discovered

May 7, 2026

Filed

vs. sector median

8 wks faster

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

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Filing propagation · 2 filings

View merged incident ↗
HHS OCRMay 7 · first
California State AGMay 7 · 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.