One linked filing — more sources may join as they report · filed Mar 15, 2023. View entity profile → Other incidents for this victim →
incident inc_0ff7f9d222384ba9 · merge_method deterministic
Discovered → first regulatory filing
Not recorded for this incident
Discovery variance · Leak precedence · Materiality delta · SEC filing delay · Filing span — no leak-site claim in this cluster; no SEC 8-K in this cluster; needs two dated filings.
Identity (basic) · Government ID
CA
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
Feb 6, 2023 → Feb 9, 2023
When the intrusion reportedly occurred, per the linked filings
Feb 8, 2023
Reported by CALIFORNIA AG filing
The City of Oakland experienced a ransomware incident on February 8, 2023, where malware encrypted systems. An unauthorized actor accessed and exfiltrated employee personal information (names, addresses, SSNs, driver's license numbers) between February 6 and February 9, 2023. The city secured its network, engaged forensic investigators, and offered identity protection services to affected employees.
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.