UnknownGovernment IDMedium

Houston Symphony

bd_db2092e68b9561ac · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Aug 20, 2025

To disclose

—

Affected

23state residents only

Linked

5 filings

Confidence

95%

Full breach record for Houston Symphony →

Houston Symphony Society reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-08-20. 23 Massachusetts residents were affected.

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Leak gap clock⏱ Leak >90d

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Incident timeline — partial

? — ?

Breach window unknown

Aug 20, 2025

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

This filing is one of 5 about the same incident.View merged incident

A leak claim by qilin about this victim predates this filing by 173 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteqilinbd_86eee7489d4a07292025-02-28 · +173dVerified by operator

Regulatory filings (3) · sorted by filing gap

Indiana State AGbd_6beb0c1e6b1071ce2025-08-19 · +1dVerified by operator
Nebraska State AGbd_d2adee11ef64e1272025-08-19 · +1dVerified
Texas State AGbd_5bed8bf384fff7b82025-08-22 · +2dVerified by operator

Name: Houston Symphony
norm: houston symphony
Domain: houstonsymphony.org

Name: Houston Symphony
norm: houston symphony
Domain: houstonsymphony.org

Discovered: —
Materiality determined: —
Notification sent: —
Affected individuals: 23state-resident count only
Data types: Government ID
Data elements: Social Security number
Stated not affected: Medical informationFinancial account numberDriver's licence numberPayment card number
The filing states these were not involved. Categories absent from both lists were not addressed either way.
Attack vector: Unknown

Compliance flags: Leak >90dMA credit monitoring due
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Indiana State AGAug 19 · first

Nebraska State AGAug 19 · first

Massachusetts State AG+1d · this page

Texas State AG+3d

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.

Source URL: https://www.mass.gov/doc/data-breach-report-2025/download
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 20, 2025
Raw hash: da92bda021476710dfda80ec9a2d06a4b7cc1d2c713091147e32602901a44904

Linked disclosures

Ransomware claims (1)

Regulatory filings (3) · sorted by filing gap

Reporting entityHouston Symphony

Victim entityHouston Symphony

IncidentUnknown

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancewww.mass.gov