HackingRetail & ConsumerRetailStolen CredentialsSupply Chain (3P Vendor)Customer Data InvolvedData ExfiltratedIdentity (basic)Government IDFinancial accountHighContained

Gymshark Limited

bd_a4be2c3c537878fc · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 18, 2020

Filed

Oct 6, 2020

To disclose

18 days

Affected

59,769state residents only

Confidence

67%

Full breach record for Gymshark Limited →

Gymshark Limited notified the Washington AG of a data breach involving its e-commerce platform provider, Shopify Inc. Unauthorized access by rogue Shopify contractors exposed Washington residents' names, addresses, dates of birth, and partial payment card numbers. 59,769 Washington residents were affected. Gymshark engaged forensic investigators and notified affected individuals.

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Washington clock✓ WA AG ≤30d18 days discovery → filing

⚠ AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

Incident timeline

undetected · 24 days

discovery → filing · 18 days

Aug 25, 2020

Begins

Sep 18, 2020

Discovered

Oct 6, 2020

Filed

vs. sector median

5 wks faster

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed59,769 affectedView incident

Name: Wilson Elser Moskowitz Edelman and Dicker LLP
norm: wilson elser moskowitz edelman and dicker

Name: Gymshark Limited
norm: gymshark
Industry: Retail & Consumerllm

Discovered: Sep 18, 2020
Breach occurred: Aug 25, 2020
Undetected for: 24 daysoccurrence → discovery
Materiality determined: —
Notification sent: Oct 5, 2020
Affected individuals: 59,769state-resident count only
Data types: Identity (basic)Government IDFinancial account
Data elements: NameDate of birth
WA-stated cause: Unauthorized Access
WA-stated duration: lifecycle Unknowndexposure Unknownd
WA-stated discovery: Found after the fact
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: PartnerFinancial
Regulator citations: Notified Washington Attorney General
Third party: via Shopify Inc.
Initial access: trusted_relationship

During the incident: Communicated with Shopify
Carried out exhaustive internal investigations
Engaged an external third-party forensics team to conduct an investigation
Provided an addendum to affected residents
Terminated rogue employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 18 days(18 days from discovery to filing)
Compliance flags: WA AG ≤30d
Discovery-date grounding: AG web formThe discovery date came from the AG web-form field, which is systematically later than the detection date stated in the letter. Treat the clock as indicative.

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://agportal-s3bucket.s3.amazonaws.com/databreach/BreachM10333.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 6, 2020
Raw hash: 883ec40583051e301ecef87a81e0ef1e69d44a58fcd4222f96a5d3537e696f73

Reporting entityWilson Elser Moskowitz Edelman and Dicker LLP

Victim entityGymshark Limited

Incidentdiscovered Sep 18, 2020

Stated responseCommunicated with Shopify

ComplianceWA AG ≤30d

Extraction provenanceno artifact recorded

Source provenanceagportal-s3bucket.s3.amazonaws.com