DisclosureLens
UnknownRetailMedium

Madison Square Garden Entertainment Corp.

bd_0334e58252a387fe · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Feb 26, 2026

To disclose

—

Affected · nationwide

38,39360 in this filing

Linked

6 filings

Confidence

95%
Full breach record for Madison Square Garden Entertainment Corp. →4 incidents on file

Madison Square Garden Entertainment Corp reported a data breach to the Indiana Attorney General. The breach occurred on 2025-08-31 and was reported on 2026-02-26. 60 Indiana residents were affected. 38,393 individuals affected in total.

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

Incident timeline

Aug 31, 2025

Begins

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 ↗
Vermont 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
Indiana 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.