HackingTelecom & MediaInformationData ExfiltratedCustomer Data InvolvedDelayed DiscoveryIdentity (basic)Government IDMediumContained

Concord Music Group, Inc.

bd_0e67b89ced80011a · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 16, 2022

Filed

Feb 27, 2024

To disclose

16 months

Affected

Not disclosed

Linked

7 filings

Confidence

64%

Full breach record for Concord Music Group, Inc. →

Concord Music Group, Inc. notified the California AG of a data security incident where an unknown actor accessed systems between Nov 14-18, 2022. Discovery occurred on Nov 16, 2022. The breach involved names and Social Security numbers. Concord engaged forensic specialists, secured systems, and offered 12 months of credit monitoring. This is a supplemental notice.

J jump to incidentP pin to compareR raw source

California clockDiscovered Nov 16, 2022 → Notified Feb 27, 2024468d ✗ CA 60-day late16 months discovery → filing

Incident timeline

undetected · 2 days

discovery → filing · 16 months / 468 days

Nov 14, 2022

Begins

Nov 16, 2022

Discovered

Feb 27, 2024

Filed

This filing is one of 7 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (6) · sorted by filing gap

New Hampshire State AGbd_68ea09aefb784b072024-02-02 · +25dVerified
California State AGbd_07178af14957ee062024-02-01 · +26dVerified
Montana State AGbd_1c26988bb2f82c9f2024-02-01 · +26dCandidate
Massachusetts State AGbd_99caead1f792fcfe2024-02-01 · +26dVerified

Show 2 more filings ↓up to 26d gap

Maine State AGbd_a4d5f3da54432dad2024-02-01 · +26dVerified by operator
Indiana State AGbd_cb09de5f174482152024-02-01 · +26dVerified

Name: Concord Music Group, Inc.
norm: concord music

Name: Concord Music Group, Inc.
norm: concord music
Industry: Telecom & Mediallm

Discovered: Nov 16, 2022
Breach occurred: Nov 14, 2022 – Nov 18, 2022
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Feb 27, 2024
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Reported this incident to federal law enforcement

During the incident: Took steps to secure our systems
Initiated an investigation into the nature and scope of the event with the assistance of third-party computer forensic specialists
Engaged a data review vendor to conduct a comprehensive and time-intensive review of the data set
Reported this incident to federal law enforcement
Changes made: Implemented additional security measures to further protect against similar incidents occurring in the future
Offering credit monitoring and identity protection services for 12 months through Experian, at no cost to you
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 months(468 days from discovery to filing)
Compliance flags: CA 60-day late · 468d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Nov 16, 2022
→ Notified: Feb 27, 2024
468d 60 days (analyst band, pre-2026 discoveries) CA 60-day late

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Nov 16, 2022 → Notified: Feb 27, 2024	468d	60 days (analyst band, pre-2026 discoveries)	CA 60-day late

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 6 states

View merged incident ↗

California State AGFeb 1 · first

Montana State AGFeb 1 · first

Massachusetts State AGFeb 1 · first

Maine State AGFeb 1 · first

Indiana State AGFeb 1 · first

New Hampshire State AG+1d

California State AG+26d · this page

Pattern: first filing Feb 1 (CA), last Feb 27 (CA) — a 26-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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://oag.ca.gov/ecrime/databreach/reports/sb24-581573
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 27, 2024
Raw hash: b289f26a4a878e91882b47c819de812b62c714218369bc247184bc6cb777625f

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityConcord Music Group, Inc.

Victim entityConcord Music Group, Inc.

Incidentdiscovered Nov 16, 2022

Stated responseTook steps to secure our systems

ComplianceCA 60-day late

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov