MalwareHospitalityHospitalityRansomwareData ExfiltratedTargetedPCIFinancial accountLowContained

Starwood Hotels & Resorts Worldwide, LLC

bd_51a836dc5242d53d · schema v1 · pii pii-v1

Severity

Low

Discovered

Nov 1, 2015

Filed

Feb 4, 2016

To disclose

14 weeks

Affected

Not disclosed

Confidence

66%

Full breach record for Starwood Hotels & Resorts Worldwide, LLC →4 incidents on file

Starwood Hotels & Resorts Worldwide, Inc. filed a supplemental notice in South Carolina regarding a malware intrusion affecting point-of-sale systems at a limited number of North American hotels. The malware collected payment card data (names, numbers, security codes, expiration dates). The incident was first announced in November 2015. Starwood engaged forensic experts, worked with law enforcement and payment card organizations, and offered one year of free credit monitoring. No guest reservation or membership systems were impacted.

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Incident timeline

discovery → filing · 14 weeks / 95 days

Nov 1, 2015

Discovered

Feb 4, 2016

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.ConfirmedView incident

Name: Starwood Hotels & Resorts Worldwide, LLC
norm: starwood hotels resorts

Name: Starwood Hotels & Resorts Worldwide, LLC
norm: starwood hotels resorts
Industry: Hospitalityllm

Discovered: Nov 1, 2015
Materiality determined: —
Notification sent: Nov 1, 2015
Affected individuals: Not disclosed
Data types: PCIFinancial account
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1056 Input Capture
Threat actor: ExternalFinancial

During the incident: Engaged third-party forensic experts to conduct an extensive investigation
Working closely with law enforcement authorities
Coordinating efforts with payment card organizations
Arranged with AllClear ID to offer identity protection and credit monitoring services to affected Starwood customers for one year at no cost
Changes made: Affected hotels have taken steps to secure customer payment card information
Malware no longer presents a threat to customers using payment cards at Starwood hotels
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 weeks(95 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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://consumer.sc.gov/sites/consumer/files/Documents/Business%20Resources%20Laws/Related%20Laws/Breaches/2016/StarwoodHotels.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 4, 2016
Raw hash: bfa3345ae61be4c3a8726280fc61ca442a579c6b90becc9719c535619b7eb334

Reporting entityStarwood Hotels & Resorts Worldwide, LLC

Victim entityStarwood Hotels & Resorts Worldwide, LLC

Incidentdiscovered Nov 1, 2015

Stated responseEngaged third-party forensic experts to conduct an extensive investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenanceconsumer.sc.gov