DisclosureLens
HackingTechnologyHospitalityInformationVulnerability ExploitSupply Chain (3P Vendor)TargetedIdentity (basic)Government IDMediumContained

The Madison Square Garden Family of Companies

bd_39f83d65f30204f1 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Feb 26, 2026

To disclose

—

Affected

Not disclosed

Linked

6 filings

Confidence

64%

The Madison Square Garden Family of Companies notified consumers of a data breach involving Oracle eBusiness Suite. An unauthorized party exploited a vulnerability in the application, hosted by a vendor, to access workforce and financial data including names and Social Security numbers starting in August 2025. The incident was discovered in November 2025. Affected individuals were offered one year of credit monitoring.

Leak gap clock⏱ Leak >90d
⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Incident timeline

Aug 1, 2025

Begins

Feb 23, 2026

Scope determined

Feb 26, 2026

Filed

This filing is one of 6 filings about the same incident.View merged incident
Part of ORACLE CORPORATION supply-chain incident (2025) — a supply-chain cascade affecting multiple organizations.View cascade →
A leak claim by cl0p about this victim was first seen 97 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Show 1 more filing ↓

Filing propagation · 6 filings · 6 states

View merged incident ↗
Indiana State AGFeb 26 · first
New Hampshire State AGFeb 26 · first
Massachusetts State AGFeb 26 · first
Nebraska State AGFeb 26 · first
California State AGFeb 26 · first
Vermont State AGFeb 26 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.