MalwareRetail & ConsumerRetailRansomwareData EncryptedEmployee Data InvolvedIdentity (basic)Government IDMediumActive

H MART, INC.

bd_9a4b535a579353e0 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 18, 2021

Filed

Aug 20, 2021

To disclose

5 weeks

Affected

Not disclosed

Linked

3 filings

Confidence

65%

Full breach record for H MART, INC. →2 incidents on file

H Mart, Inc. notified employees of a security incident discovered on July 18, 2021, involving encrypted files on corporate systems. The incident potentially exposed personal identifying information, including names, birth dates, and social security numbers. The company engaged cybersecurity professionals, reported the matter to federal law enforcement, and offered two years of credit monitoring via Experian. The investigation was ongoing at the time of notification.

J jump to incidentP pin to compareR raw source

California clockDiscovered Jul 18, 2021 → Notified Aug 23, 202136d ✓ CA 60-day OK5 weeks discovery → filing

Incident timeline

discovery → filing · 5 weeks / 33 days

Jul 18, 2021

Discovered

Aug 20, 2021

Filed

vs. sector median

3 wks faster

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

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_258c9087725f8a992021-08-20Verified
Indiana State AGbd_0ff8996bc46d08572021-08-23 · +3dVerified

Name: H MART, INC.
norm: h mart

Name: H MART, INC.
norm: h mart
Industry: Retail & Consumerllm

Discovered: Jul 18, 2021
Materiality determined: —
Notification sent: Aug 23, 2021
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for Impact
Threat actor: External
Regulator citations: Reported to federal law enforcement

During the incident: Reported the matter to federal law enforcement
Engaged cybersecurity professionals to investigate what happened
Strengthened the security of all systems within the computer network
Purchased a two-year credit monitoring and identity protection service from Experian for affected employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 5 weeks(33 days from discovery to filing)
Compliance flags: CA 60-day OK · 36d
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: Jul 18, 2021
→ Notified: Aug 23, 2021
36d 60 days (analyst band, pre-2026 discoveries) CA 60-day OK

Statute	Window	Elapsed	Threshold	Status
California	Discovered: Jul 18, 2021 → Notified: Aug 23, 2021	36d	60 days (analyst band, pre-2026 discoveries)	CA 60-day OK

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGAug 20 · first

California State AGAug 20 · first · this page

Indiana State AG+3d

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/sb24-544090
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 20, 2021
Raw hash: 7aba230d979ccbcf07a4adc5e1977c10d0ab019416760e3d528ff7bbf8df51c9

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityH MART, INC.

Victim entityH MART, INC.

Incidentdiscovered Jul 18, 2021

Stated responseReported the matter to federal law enforcement

ComplianceCA 60-day OK

Extraction provenanceno artifact recorded

Source provenanceoag.ca.gov