Milwaukee Symphony Orchestra
bd_a02e16d07f7be7bb · schema v1 · pii pii-v1
Full breach record for Milwaukee Symphony Orchestra →Milwaukee Symphony Orchestra, Inc. notified employees of a data security incident discovered on June 10, 2026. The incident involved a file containing W-2 form information, including Social Security numbers, names, addresses, and wage/tax data. The organization engaged cybersecurity professionals and legal counsel, contained the incident, and is offering 24 months of credit monitoring. No specific attack vector or threat actor was identified.
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Incident timeline
Jun 10, 2026
Discovered
Aug 7, 2026
Filed
Linked disclosures
Why this link?Regulatory filings (1) · sorted by filing gap
- New Hampshire State AGbd_69a0b1a25f177b2b2026-08-07Verified
Filing propagation · 2 filings · 2 states
View merged incident ↗Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.