HackingRetail & ConsumerRetailStolen CredentialsSupply Chain (3P Vendor)Data ExfiltratedPIIIdentity (basic)Financial accountLowContained

West Music

bd_7436d3ab3e9c8806 · schema v1 · pii pii-v1

Severity

Low

Discovered

Aug 24, 2017

Filed

Oct 13, 2017

To disclose

7 weeks

Affected

2state residents only

Linked

3 filings

Confidence

65%

Full breach record for West Music →3 incidents on file

West Music notified customers that its payment processor, Aptos, experienced unauthorized access to its e-commerce platform. Customer data including names, addresses, emails, and credit/debit card information entered between July 21 and August 9, 2017, may have been accessed. West Music offered credit monitoring and identity theft protection services.

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Incident timeline

undetected · 34 days

discovery → filing · 7 weeks / 50 days

Jul 21, 2017

Begins

Aug 24, 2017

Discovered

Oct 13, 2017

Filed

vs. sector median

on median

This filing is one of 3 about the same incident.View merged incident

Part of Aptos supply-chain incident (2017) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

New Hampshire State AGbd_7c8b4fe53e7aa5282017-10-13Verified
Massachusetts State AGbd_93d9188207b9bafd2017-10-13Verified

Name: West Music
norm: west music
Domain: westmusic.com

Name: West Music
norm: west music
Domain: westmusic.com
Industry: Retail & Consumerllm

Discovered: Aug 24, 2017
Breach occurred: Jul 21, 2017 – Aug 9, 2017
Undetected for: 34 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 5, 2017
Affected individuals: 2state-resident count only
Data types: PIIIdentity (basic)Financial account
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Third party: via Aptos
Initial access: exploit_public_facing

During the incident: Hired a cybersecurity expert to assist with investigation
Offering identity theft protection services through ID Experts
Offering 12 months of Single Bureau Credit Monitoring from Experian
Offering CyberScan Internet Monitoring
Offering a $1,000,000 insurance reimbursement policy
In the process of hiring a new e-commerce vendor
Changes made: Hiring a new e-commerce vendor to prevent a similar event
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(50 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

New Hampshire State AGOct 13 · first

Massachusetts State AGOct 13 · first

Montana State AGOct 13 · 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://dojmt.gov/wp-content/uploads/West-Music-1.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 13, 2017
Raw hash: 69598acdc60ba7196d75cb34ca1cddf8de6edb5875d309165df4183fd2937f3e

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityWest Music

Victim entityWest Music

Incidentdiscovered Aug 24, 2017

Stated responseHired a cybersecurity expert to assist with investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov