Clustered 3 filings across 3 jurisdictions · filing window Nov 21, 2025 → Feb 26, 2026. View entity profile → Other incidents for this victim →
incident inc_cc97934b8ddc467b · merge_method human · 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
Leak Site · State AG
Earliest sighting first · deep chronology in Litigation Timeline
Aug 1, 2025 → Aug 31, 2025
When the intrusion reportedly occurred, per the linked filings
MSG.com is a website owned by The Madison Square Garden Company, a sports and entertainment company based in the United States. The site features content pertaining to the company's various properties, including the New York Knicks, the New York Rangers, and Madison Square Gardens. It provides news, updates, event schedules, ticket purchasing options, and more.
Nov 30, 2025
Reported by CALIFORNIA AG filing
Dec 16, 2025
Reported by MAINE AG filing
The Madison Square Garden Family of Companies notified California residents of a data breach involving their Oracle eBusiness Suite. An unauthorized person exploited a previously undisclosed vulnerability in the application, hosted by a third-party vendor, to access data in August 2025. The investigation determined in late November 2025 that files containing names and Social Security numbers were accessed. The company engaged forensic investigators, notified law enforcement, and is offering one year of complimentary credit monitoring services.
MSG Entertainment Corp. reported a breach affecting 11 Maine residents. An unauthorized actor exploited a previously undisclosed vulnerability in Oracle eBusiness Suite hosted by a third-party vendor, gaining access to names and Social Security numbers in August 2025. Investigation concluded November 2025; Maine residents identified December 2025. Notifications sent February 26, 2026. Vendor implemented Oracle-recommended fixes. One-year credit monitoring offered.
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.
Affected (this filing): 11