California State AG
Clustered 5 filings across 5 jurisdictions · filing window Jul 25, 2025 → Jul 28, 2025. View entity profile → Other incidents for this victim →
incident inc_9bdaf87dd4624647 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Government ID · Identity (basic) · Health (basic)
Time between earliest and latest filing
Not recorded for this incident
Leak precedence · Materiality delta · SEC filing delay — no leak-site claim in this cluster; no SEC 8-K in this cluster.
CA OR SC TX WA
all State AG
per-filing reported counts
State AGs report only their own residents; bars show per-filing counts.
Earliest sighting first · deep chronology in Litigation Timeline
Jan 22, 2025
When the intrusion reportedly occurred, per the linked filings
Feb 20, 2025
Reported by OREGON AG, WASHINGTON AG, TEXAS AG filings
Mar 7, 2025
Reported by SOUTH CAROLINA AG filing
About this clustering
DisclosureLens links filings into incidents through layered matchers: deterministic rules (same source document, multistate filings of one breach, tight-window same-victim pairs), a weighted-similarity scorer for cross-source candidates, and an operator review queue for everything uncertain. Each link records its own method and confidence — shown per filing in the timeline below. The system defaults to NOT merging when uncertain, because a false merge (collapsing two unrelated breaches) is more harmful than a false split (showing related filings separately); uncertain pairs route to human review instead of auto-merging. Filing summaries shown in the timeline are AI-generated extracts — verify each against its linked source.
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.
Cerner Corporation reported a data breach to the Oregon Attorney General. The breach was reported on 2025-07-25. The breach occurred during 1/22/2025 - 4/1/2025. The breach was discovered on 2/20/2025. 1,970,332 individuals were affected. Notice was sent on 7/25/2025.
Affected (this filing): 1,970,332
Cerner Corporation, a health sector entity reported a unauthorized access incident to the Washington Attorney General. The organization became aware of the incident on 2025-02-20 and filed notice on 2025-07-25. 802 Washington residents were affected. 155 days elapsed between awareness and notification. 29 days to identify the breach. 40 days to contain the breach.
Affected (this filing): 802
Cerner Corporation reported an unauthorized third-party access to legacy EHR systems starting Jan 22, 2025, discovered March 7, 2025. Data included names, SSNs, and PHI. Federal law enforcement delayed notification. Cerner engaged forensic specialists and offered 24 months of credit monitoring.
Cerner Corporation based in Kansas City, Missouri, a healthcare – medical provider entity reported a data breach to the Texas Attorney General. The breach was discovered on 2025-02-20 and reported on 2025-07-28. 4,082 Texas residents were affected. 1,970,332 individuals affected in total. Types of information involved: Name of individual;Address;Social Security Number Information;Medical Information. Consumers were notified via U.S. Mail.
Affected (this filing): 4,082