Milwaukee Symphony Orchestra
ent_b05903b36b35db530e9fafe5
Disclosures
2
State AG · 2 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
2
as filed · State AG MA
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Milwaukee Symphony Orchestra
- Normalized
- milwaukee symphony orchestra— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- mso.org
Disclosure history (2)newest first
- New Hampshire State AGas victim2026-08-07
Milwaukee Symphony Orchestra, Inc. notified the NH Attorney General of a data incident where an employee inadvertently sent a file containing employee personal information (including SSNs, addresses, and wage/tax data) in response to a phishing email on June 10, 2026. The incident potentially affected 1 New Hampshire resident. MSO engaged forensic professionals, contained the incident, and is providing 24 months of credit monitoring.
- Massachusetts State AGas victim2026-08-07
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.