HackingRetail & ConsumerTechnologyRetailStolen CredentialsData MishandlingSupply Chain (3P Vendor)Data ExfiltratedCustomer Data InvolvedIdentity (basic)Financial accountFinancial credentialsLowContained

Warner Music Group

bd_35175c3bfdf953a2 · schema v1 · pii pii-v1

Severity

Low

Discovered

Aug 5, 2020

Filed

Sep 4, 2020

To disclose

4 weeks

Affected

646state residents only

Linked

7 filings

Confidence

65%

Full breach record for Warner Music Group →3 incidents on file

Warner Music Group notified the NH AG of a breach affecting e-commerce websites hosted by an external provider. Unauthorized access occurred between April 25 and August 5, 2020, potentially exposing customer PII and payment card details. WMG engaged forensic experts and Kroll for credit monitoring. 646 NH residents affected.

J jump to incidentP pin to compareR raw source

Incident timeline

undetected · 102 days

discovery → filing · 4 weeks / 30 days

Apr 25, 2020

Begins

Aug 5, 2020

Discovered

Sep 4, 2020

Filed

vs. sector median

3 wks faster

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

Indiana State AGbd_13e339efa758f9df2020-09-03 · +1dVerified
South Carolina State AGbd_07f2cbb6b77f4ab82020-09-02 · +2dVerified
Montana State AGbd_291443e8a85002962020-09-02 · +2dVerified
California State AGbd_4c882e60c07278442020-09-02 · +2dVerified

Show 2 more filings ↓up to 5d gap

Washington State AGbd_adff23c1da81b4972020-09-02 · +2dCandidate
Massachusetts State AGbd_1d2a6092d2d3c24c2020-09-09 · +5dVerified

Name: Warner Music Group
norm: warner music
Domain: warnermusic.com
Industry: Music Entertainment

Name: Warner Music Group
norm: warner music
Domain: warnermusic.com
Industry: Music Entertainment
Industry: Retail & ConsumerllmTechnologyllm

Discovered: Aug 5, 2020
Breach occurred: Apr 25, 2020 – Aug 5, 2020
Undetected for: 102 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 3, 2020
Affected individuals: 646state-resident count only
Data types: Identity (basic)Financial accountFinancial credentials
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain CompromiseT1041 Exfiltration Over C2 ChannelT1530 Data from Cloud Storage Object
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Office of the Attorney General
Initial access: supply_chain

During the incident: Launched a thorough forensic investigation with the assistance of leading outside cybersecurity experts
Took steps to address and correct the issue
Conducts daily scans to monitor for any suspicious activity
Notified the relevant card providers
Notified law enforcement
Engaged Kroll Information Assurance, LLC, to provide 12 months of free credit monitoring and identity theft protection services
Changes made: Eliminated the third party's unauthorized access
Offering identity monitoring services through Kroll for 12 months
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(30 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 7 filings · 7 states

View merged incident ↗

South Carolina State AGSep 2 · first

Montana State AGSep 2 · first

California State AGSep 2 · first

Washington State AGSep 2 · first

Indiana State AG+1d

New Hampshire State AG+2d · this page

Massachusetts State AG+7d

Pattern: first filing Sep 2 (SC), last Sep 9 (MA) — a 7-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://mm.nh.gov/files/uploads/doj/remote-docs/warner-music-group-20200904.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 4, 2020
Raw hash: e8111e1486f2b7b3aa3d56c7a35781edbb47a09e71d4209cbaed6d3369ee9c6f

Linked disclosures

Regulatory filings (6) · sorted by filing gap

Reporting entityWarner Music Group

Victim entityWarner Music Group

Incidentdiscovered Aug 5, 2020

Stated responseLaunched a thorough forensic investigation with the assistance of leading outside cybersecurity experts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov