Clustered 5 filings across 3 jurisdictions · filing window Sep 7, 2023 → Oct 2, 2023. View entity profile → Other incidents for this victim →
incident inc_d617279e5dcc49f1 · merge_method deterministic · confidence 100%
Discovered → first regulatory filing
Range of discovered_at dates across filings
Identity (basic) · Government ID
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.
ME NH VT
all State AG
Earliest sighting first · deep chronology in Litigation Timeline
May 27, 2023 → May 31, 2023
When the intrusion reportedly occurred, per the linked filings
Aug 4, 2023
Reported by NEW HAMPSHIRE AG, VERMONT AG filings
Aug 8, 2023
Reported by MAINE 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.
Northfield Bank reported a data breach affecting 4,112 individuals due to a security event involving the MOVEit Transfer application at a third-party vendor. The breach occurred between May 27, 2023, and May 31, 2023, and was discovered on August 8, 2023. The compromised information includes names and Social Security numbers. The bank offered affected individuals two years of credit monitoring and identity restoration services.
Affected (this filing): 4,112
Northfield Bank notified New Hampshire residents of a data security event involving a third-party vendor's use of MOVEit Transfer software. The incident occurred between May 27 and May 31, 2023, and the bank was notified on August 4, 2023. The breach potentially exposed customer personal information, including government identifiers, via vulnerabilities in the vendor's file transfer application. Northfield Bank engaged cybersecurity specialists and provided credit monitoring services through Kroll to affected individuals.
Northfield Bank notified consumers of a data security event involving its third-party vendor, Progress Software Corporation. The incident, occurring May 27-31, 2023, exploited vulnerabilities in the MOVEit Transfer application. Affected data included names, account numbers, SSNs, and online banking usernames. No passwords were compromised. Northfield Bank engaged cybersecurity specialists and the vendor patched systems. Affected individuals received two years of complimentary identity monitoring via Kroll.
Northfield Bank notified Vermont consumers of a data security event involving its third-party vendor, Progress Software Corporation. The incident, occurring May 27-31, 2023, exploited vulnerabilities in the MOVEit Transfer application. Affected data included names, account numbers, SSNs, and online banking usernames. No passwords were compromised. Northfield Bank engaged cybersecurity specialists and the vendor patched systems. Affected individuals received two years of complimentary identity monitoring through Kroll.
Northfield Bank filed a supplemental notice with the New Hampshire Attorney General regarding a data security event involving a third-party vendor's use of MOVEit Transfer software. The incident occurred between May 27 and May 31, 2023. The bank notified 2 New Hampshire residents. Affected data included personal information potentially including SSNs and government IDs. The bank provided credit monitoring via Kroll and engaged cybersecurity specialists.
Affected (this filing): 2