HackingHealthcareTechnologyHealthcareCapture Stored DataData ExfiltratedCustomer Data InvolvedDelayed DiscoveryDOJ-Delayed FilingSupply Chain (3P Vendor)PIIPHIIdentity (basic)Government IDHealth (basic)MediumContained

Cerner Corporation

bd_28ee1e6c3dffc490 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Jul 25, 2025

To disclose

—

Affected

Not disclosed

Linked

8 filings

Confidence

78%

Full breach record for Cerner Corporation →4 incidents on file

Unauthorized third party gained access to legacy Cerner EHR systems beginning at least January 22, 2025, obtaining patient personal information including names, Social Security numbers, medical record numbers, diagnoses, medications, and test results. A healthcare provider (the reporting entity's client) was notified on March 7, 2025. Federal law enforcement requested a delay in patient notification pending investigation. Notices were sent July 25, 2025.

J jump to incidentP pin to compareR raw source

Incident timeline

Jan 22, 2025

Begins

Jul 25, 2025

Filed

This filing is one of 8 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

Nebraska State AGbd_3a23d77e3f28adfc2025-07-25Verified
Oregon State AGbd_84ee1229a46c91d32025-07-25Verified
Massachusetts State AGbd_9d89cbf05f39075c2025-07-25Verified
Washington State AGbd_d595530ba42639ae2025-07-25Verified

Show 3 more filings ↓up to 7d gap

South Carolina State AGbd_eb522228bcaccfaa2025-07-25Verified
Texas State AGbd_80ec506162e7d5792025-07-28 · +3dVerified
Illinois State AGbd_f238b85559dc3dac2025-08-01 · +7dVerified

Name: Cerner Corporation
norm: cerner
Domain: cerner.com

Name: Cerner Corporation
norm: cerner
Domain: cerner.com
Industry: HealthcarellmTechnologyllm

Discovered: —
Breach occurred: Jan 22, 2025
Materiality determined: —
Notification sent: Jul 25, 2025
Affected individuals: Not disclosed
Data types: PIIPHIIdentity (basic)Government IDHealth (basic)
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated CollectionT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Federal law enforcement asked to delay patient notification as they continued their investigation
Third party: via Cerner Corporation

During the incident: Began investigating the incident as soon as we learned of it
The vendor initiated its critical incident response process
Took steps to secure the impacted systems
Began an investigation
Worked with external cybersecurity specialists and federal law enforcement
Changes made: Offering complimentary access to Experian IdentityWorks Credit Plus 3B for 24 months in eligible jurisdictions
Identity Restoration available for 24 months from the date of the letter
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 8 states

View merged incident ↗

Nebraska State AGJul 25 · first

Oregon State AGJul 25 · first

Massachusetts State AGJul 25 · first

Washington State AGJul 25 · first

South Carolina State AGJul 25 · first

California State AGJul 25 · first · this page

Texas State AG+3d

Illinois State AG+7d

Pattern: first filing Jul 25 (NE), last Aug 1 (IL) — a 7-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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/sb24-606163
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jul 25, 2025
Raw hash: 69a1b6fcdfe6b991eb3ef2650b5f65033ef178eb2bf294fb6ca9a21f7862215c

Linked disclosures

Regulatory filings (7) · sorted by filing gap

Reporting entityCerner Corporation

Victim entityCerner Corporation

IncidentUnauthorized Access

Stated responseBegan investigating the incident as soon as we learned of it

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov