HackingHealthcareHealthcareCustomer Data InvolvedPHIHealth (basic)Identity (basic)LowContained

City Health

bd_24fb6fc18630a86d · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 30, 2026

Filed

Apr 14, 2026

To disclose

15 days

Affected

Not disclosed

Linked

2 filings

Confidence

65%

Full breach record for City Health →

City Health, a medical corporation, reported unauthorized access to patient health information occurring between March 2 and March 11, 2026, discovered on March 30, 2026. Affected data included names, insurance company names, and procedure codes. SSNs, DOBs, and contact info were not involved. The company secured systems, engaged experts, and is reviewing policies.

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California clockDiscovered Mar 30, 2026 → Notified Apr 13, 202614d ✓ CA 30-day OK15 days discovery → filing

Incident timeline

undetected · 28 days

discovery → filing · 15 days

Mar 2, 2026

Begins

Mar 30, 2026

Discovered

Apr 14, 2026

Filed

vs. sector median

10 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

HHS OCRbd_da428cc32525bd702026-04-14Candidate

Name: City Health
norm: city health
Domain: cityhealth.com

Name: City Health
norm: city health
Domain: cityhealth.com
Industry: Healthcarellm

Discovered: Mar 30, 2026
Breach occurred: Mar 2, 2026 – Mar 11, 2026
Undetected for: 28 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 13, 2026
Affected individuals: Not disclosed
Data types: PHIHealth (basic)Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Self-reporting this incident to the appropriate authorities

During the incident: Secured the system
Launched an investigation
Engaged with cybersecurity experts
Self-reporting this incident to the appropriate authorities
Reviewing our security policies
Changes made: Taking steps to prevent future breaches
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 days(15 days from discovery to filing)
Compliance flags: CA 30-day OK · 14dCA AG copy ≤15d · 1d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Mar 30, 2026
→ Notified: Apr 13, 2026
14d 30 calendar days CA 30-day OK
California
Consumers notified: Apr 13, 2026
→ AG copy submitted: Apr 14, 2026
1d 15 calendar days CA AG copy ≤15d

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Mar 30, 2026 → Notified: Apr 13, 2026	14d	30 calendar days	CA 30-day OK
California	Consumers notified: Apr 13, 2026 → AG copy submitted: Apr 14, 2026	1d	15 calendar days	CA AG copy ≤15d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings

View merged incident ↗

HHS OCRApr 14 · first

California State AGApr 14 · 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.

Source URL: https://oag.ca.gov/ecrime/databreach/reports/sb24-621745
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 14, 2026
Raw hash: 7ad6e6fd71752db49e1c790da4d40803dac847a67ddc6172a40df25a6ce353a4

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityCity Health

Victim entityCity Health

Incidentdiscovered Mar 30, 2026

Stated responseSecured the system

ComplianceCA 30-day OK

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov