🦞Maine State AGlinked via shared-victim match · 100%
Clustered 5 filings across 4 jurisdictions · filing window Sep 1, 2023 → Jun 22, 2024. View entity profile → Other incidents for this victim →
incident inc_c14e7226dea54b8d · merge_method llm · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Gap between first leak claim and first regulatory filing
Time between earliest and latest filing
Not recorded for this incident
Materiality delta · SEC filing delay — no SEC 8-K in this cluster.
CA ME VT
Leak Site · State AG
Earliest sighting first · deep chronology in Litigation Timeline
May 29, 2023 → Jun 5, 2023
When the intrusion reportedly occurred, per the linked filings
May 31, 2023
Reported by CALIFORNIA AG, VERMONT AG filings
Aug 10, 2023
Reported by MAINE AG filings
CBIZ, Inc. experienced an external system breach between May 29, 2023, and June 5, 2023, discovered on August 10, 2023. The breach affected 482 Maine residents, compromising names and financial account or credit/debit card numbers with associated security codes or PINs. CBIZ offered credit monitoring and identity theft protection services to those affected.
Affected (this filing): 482
SALE
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.
CBIZ, Inc. experienced an external system breach between May 29, 2023, and June 5, 2023, which was discovered on August 10, 2023. The breach affected 35,843 individuals, compromising their names and Social Security numbers. CBIZ notified affected consumers in writing on September 1, 2023, and offered complimentary credit monitoring and identity theft protection services through Kroll.
Affected (this filing): 35,843
CBIZ, Inc. notified California residents of a data breach involving its IT environment for client Mayer Hoffman McCann P.C. An unauthorized third party exploited a vulnerability in Progress Software's MOVEit Transfer software, accessing a server between May 29 and June 5, 2023, and downloading data. Affected information includes names, dates of birth, and Social Security numbers. CBIZ patched the vulnerability and is offering two years of identity monitoring.
CBIZ, Inc. disclosed a data breach involving its MOVEit Transfer server, exploited via a vulnerability in Progress Software's software. Unauthorized access occurred between May 29 and June 5, 2023, resulting in the exfiltration of names, dates of birth, and Social Security numbers. CBIZ patched the vulnerability and offered two years of identity monitoring services.