Milwaukee Symphony Orchestra — June 2026 breach

Clustered 3 filings across 3 jurisdictions · filing window Aug 3, 2026 → Aug 7, 2026. View entity profile → Other incidents for this victim →

⚠ 1 cross-filing discrepancy →Merge100%

Determination

Confirmed

Members

3 filings

States

Affected · reported

359

First → last filing

Aug 3, 2026 → Aug 7, 2026

Merge confidence

100%

incident inc_a5e994a79f684f7e · merged by deterministic · confidence 100%

Confirmed breach. Merged as one breach: 3 regulatory filings. The filing describes a phishing attack. Intrusion Jun 10, 2026, discovered Jun 10, 2026 — the first regulatory filing landed 54 days later. 359 individuals reported across the linked filings. Data reported: Government ID, Identity (basic), Financial account, and 1 more. Each member filing remains the legal record for its jurisdiction.

Litigation Timing

Supplemental

Notification delay

54days

Discovered → first regulatory filing

Discovery variance

0days

Range of discovered_at dates across filings

Filing span

4days

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.

Regulatory clocksMassachusetts⏱ MA AG >30dFull clock table in Litigation Timeline

No cross-filing comparison data available for this incident.

The weekly clock on records like this one

The Disclosure Clock is a weekly briefing on what landed in the disclosure record, and the gap between the criminals' post and the regulator's filing — measured on the whole record, with the method shown.

Weekly. Double opt-in, one-click unsubscribe, and the address goes nowhere else.