MalwareRetail & ConsumerRetailRansomwareData ExfiltratedSupply Chain (3P Vendor)Customer Data InvolvedPIIPCIIdentity (basic)Financial accountMediumContained

West Music

bd_f500fe7fe6afa249 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 6, 2017

Filed

Mar 6, 2017

To disclose

28 days

Affected

1,495state residents only

Linked

5 filings

Confidence

68%

Full breach record for West Music →3 incidents on file

West Music Company notified Washington AG of a third-party vendor (Aptos) breach. Malware allowed unauthorized access to payment card info (names, addresses, card numbers) for 1,495 WA residents. Access occurred Feb-Dec 2016; discovered Feb 6, 2017. Notifications sent March 3, 2017.

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Incident timeline

undetected · 346 days

discovery → filing · 28 days

Feb 26, 2016

Begins

Feb 6, 2017

Discovered

Mar 6, 2017

Filed

vs. sector median

6 wks faster

This filing is one of 5 filings 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 (4) · sorted by filing gap

Montana State AGbd_59c8c534f685fa212017-03-03 · +3dCandidate
New Hampshire State AGbd_761fbaedfa112ed72017-03-03 · +3dVerified
California State AGbd_8bdbf4f87d6d6cea2017-03-03 · +3dVerified
Oregon State AGbd_a420cc4322dee7ac2017-03-03 · +3dVerified

Name: BakerHostetler LLP
norm: bakerhostetler
Domain: westmusic.com

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

Discovered: Feb 6, 2017
Breach occurred: Feb 26, 2016 – Dec 5, 2016
Undetected for: 346 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 3, 2017
Affected individuals: 1,495state-resident count only
Data types: PIIPCIIdentity (basic)Financial account
Data elements: Financial account numberName
WA-stated cause: Cyberattack
WA-stated duration: lifecycle 300-399dexposure 200-299d
WA-stated discovery: Found after the fact
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified Washington Office of Attorney GeneralAptos contacted the FBI Cyber Division and the U.S. Department of Justice
Initial access: supply_chain

During the incident: Contacted the FBI Cyber Division and the U.S. Department of Justice
Engaged a cybersecurity firm to help contain and eliminate the issue
Established a dedicated call center to assist individuals
Provided written notification via U.S. Mail
Changes made: Reinforcing priority of information security with third party vendors
Reviewing and potentially revising existing third party vendor contract provisions concerning vendor information security practices
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 28 days(28 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Montana State AGMar 3 · first

New Hampshire State AGMar 3 · first

California State AGMar 3 · first

Oregon State AGMar 3 · first

Washington State AG+3d · 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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachM9682.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 6, 2017
Raw hash: dbc303560d351344befb4a84c63ff4634ecc88076d91fb8a7c91429d272cfbd5

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityBakerHostetler LLP

Victim entityWest Music

Incidentdiscovered Feb 6, 2017

Stated responseContacted the FBI Cyber Division and the U.S. Department of Justice

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com