HackingRetail & ConsumerRetailStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)CredentialsHighContained

Shein

bd_ec80e448916c7d16 · schema v1 · pii pii-v1

Severity

High

Discovered

Aug 22, 2018

Filed

Oct 10, 2018

To disclose

7 weeks

Affected

6,420,000

Linked

6 filings

Confidence

64%

Full breach record for Shein →2 incidents on file

Shein disclosed a cyberattack where customer email addresses and encrypted password credentials were stolen. The breach occurred between June 1, 2018, and early August 2018, with discovery on August 22, 2018. Approximately 6.42 million customers were affected. Shein engaged forensic investigators, removed malware and backdoors, and offered identity theft monitoring.

J jump to incidentP pin to compareR raw source

California clockDiscovered Aug 22, 2018 → Notified Sep 21, 201830d ✓ CA 60-day OK7 weeks discovery → filing

Incident timeline

undetected · 82 days

discovery → filing · 7 weeks / 49 days

Jun 1, 2018

Begins

Aug 22, 2018

Discovered

Oct 10, 2018

Filed

vs. sector median

on median

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Massachusetts State AGbd_8cdd444d13b362af2018-10-10Verified
Washington State AGbd_163ba3e0e55e255c2018-10-11 · +1dVerified
Oregon State AGbd_62e301b01675a2e52018-10-11 · +1dVerified
Montana State AGbd_9cc81320a65d2dcc2018-09-21 · +19dCandidate

Show 1 more filing ↓up to 19d gap

New Hampshire State AGbd_ad7ee2e7eff93f552018-09-21 · +19dVerified

Name: Shein
norm: shein
Domain: shein.com

Name: Shein
norm: shein
Domain: shein.com
Industry: Retail & Consumerllm

Discovered: Aug 22, 2018
Breach occurred: Jun 1, 2018 – Aug 1, 2018
Undetected for: 82 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 21, 2018
Affected individuals: 6,420,000nationwide
Data types: Identity (basic)Credentials
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notifying the proper authorities

During the incident: Hired a leading international forensic cybersecurity firm as well as an international law firm to conduct a thorough investigation
Scanned servers and removed malware found on the servers
Closed and removed back door entry points to the servers opened by the attackers
Continuing to closely monitor the network and servers
Sending customer notices that provide instructions for resetting passwords
Offering one year of identity theft monitoring to affected customers in certain markets
Changes made: Implementing new safeguards to prevent any future breaches
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 7 weeks(49 days from discovery to filing)
Compliance flags: CA 60-day OK · 30d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.
Clock breakdown: Statute Window Elapsed Threshold Status
California
Discovered: Aug 22, 2018
→ Notified: Sep 21, 2018
30d 60 days (analyst band, pre-2026 discoveries) CA 60-day OK

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Aug 22, 2018 → Notified: Sep 21, 2018	30d	60 days (analyst band, pre-2026 discoveries)	CA 60-day OK

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Montana State AGSep 21 · first

New Hampshire State AGSep 21 · first

Massachusetts State AG+19d

California State AG+19d · this page

Washington State AG+20d

Oregon State AG+20d

Pattern: first filing Sep 21 (MT), last Oct 11 (OR) — a 20-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://oag.ca.gov/ecrime/databreach/reports/sb24-140625
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 10, 2018
Raw hash: 8bf1a86640e27bd30648baf1855d4cb30f4387c1e578969e5a51b75f54ef14a8

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityShein

Victim entityShein

Incidentdiscovered Aug 22, 2018

Stated responseHired a leading international forensic cybersecurity firm as well as an international law firm to conduct a thorough investigation

ComplianceCA 60-day OK

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov