HackingOtherDelayed DiscoveryIdentity (basic)LowContained

Detroit Symphony Orchestra

bd_9d8c8188ac713215 · schema v1 · pii pii-v1

Severity

Low

Discovered

Sep 27, 2023

Filed

Apr 1, 2024

To disclose

27 weeks

Affected

Not disclosed

Linked

8 filings

Confidence

65%

Full breach record for Detroit Symphony Orchestra →

Detroit Symphony Orchestra notified consumers of a data security incident where an unknown actor accessed the network between Sept 19-27, 2023. The incident involved names. DSO engaged cybersecurity experts, implemented additional security features, and offered 12 months of credit monitoring and identity protection services.

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Vermont clock✗ VT AG >45 bday27 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 8 days

discovery → filing · 27 weeks / 187 days

Sep 19, 2023

Begins

Sep 27, 2023

Discovered

Mar 26, 2024

Scope determined

Apr 1, 2024

Filed

vs. sector median

+19 wks slower

This filing is one of 8 about the same incident.View merged incident

A leak claim by dispossessor about this victim predates this filing by 190 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Sitesnatchbd_ca38a94d8a0d7c0c2023-11-01 · +152dVerified by operator
Leak Sitedispossessorbd_a8f30121c1ab9f032023-09-24 · +190dVerified by operator

Regulatory filings (5) · sorted by filing gap

Massachusetts State AGbd_34fc68c84112c0752024-04-01Verified
Montana State AGbd_919f3f213ee92ff02024-04-01Candidate
New Hampshire State AGbd_adf7430409ccfd8b2024-04-01Verified
Indiana State AGbd_b634aa9051f7fd402024-04-01Verified

Show 1 more filing ↓

Maine State AGbd_f7448b52c6a737612024-04-01Verified by operator

Name: Detroit Symphony Orchestra
norm: detroit symphony orchestra
Domain: dso.org

Name: Detroit Symphony Orchestra
norm: detroit symphony orchestra
Domain: dso.org
Industry: Otherllm

Discovered: Sep 27, 2023
Breach occurred: Sep 19, 2023 – Sep 27, 2023
Undetected for: 8 daysoccurrence → discovery
Materiality determined: Mar 26, 2024
Notification sent: Apr 1, 2024
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External

During the incident: Engaged leading cybersecurity experts to assist with an investigation
Implemented additional security features to reduce the risk of a similar incident occurring in the future
Offering you the opportunity to enroll in complimentary credit monitoring and identity theft protection services by Cyberscout through Identity Force
Changes made: Implemented additional security features to reduce the risk of a similar incident occurring in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 27 weeks(187 days from discovery to filing)
Compliance flags: VT AG >45 bdayLeak >180d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Massachusetts State AGApr 1 · first

Montana State AGApr 1 · first

New Hampshire State AGApr 1 · first

Indiana State AGApr 1 · first

Maine State AGApr 1 · first

Vermont State AGApr 1 · 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.

Source URL: https://ago.vermont.gov/document/2024-04-01-detroit-symphony-orchestra-data-breach-notice-consumers
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 1, 2024
Raw hash: af77c3fc9b363a685a53668a67e6bd8d5711545fa662b8d6ca4728498381cb9c

Linked disclosures

Ransomware claims (2)

Regulatory filings (5) · sorted by filing gap

Reporting entityDetroit Symphony Orchestra

Victim entityDetroit Symphony Orchestra

Incidentdiscovered Sep 27, 2023

Stated responseEngaged leading cybersecurity experts to assist with an investigation

ComplianceVT AG >45 bday

Extraction provenanceno artifact recorded

Source provenanceago.vermont.gov