HackingRetail & ConsumerRetailCustomer Data InvolvedIdentity (basic)Financial accountHighResolved

The Neiman Marcus Group LLC

bd_3a2af85b6cddd992 · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 9, 2021

Filed

Oct 1, 2021

To disclose

22 days

Affected · nationwide

4,354,3465,951 in this filing

Linked

9 filings

Confidence

66%

Full breach record for The Neiman Marcus Group LLC →4 incidents on file

The Neiman Marcus Group, LLC reported an external system breach (hacking) occurring between May 2 and May 17, 2020, discovered on September 9, 2021. The incident affected 4,354,346 individuals in the U.S., including 5,951 Maine residents. Acquired data included names and financial account or credit/debit card numbers with security codes. Substitute notice was sent on September 30, 2021.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Sep 9, 2021 → Filed with AG Oct 1, 202122d ✓ ME AG ≤30d22 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 · 495 days

discovery → filing · 22 days

May 2, 2020

Begins

Sep 9, 2021

Discovered

Oct 1, 2021

Filed

vs. sector median

6 wks faster

This filing is one of 9 filings about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (8) · sorted by filing gap

Indiana State AGbd_07b35f770d21dca72021-09-30 · +1dVerified
Massachusetts State AGbd_1d3567c71e8a237a2021-09-30 · +1dVerified
California State AGbd_64f1e5518aec51d72021-09-30 · +1dVerified
Delaware State AGbd_7461fbea0332a50a2021-09-30 · +1dVerified

Show 4 more filings ↓up to 273d gap

Oregon State AGbd_a670c8d958ef4cd02021-09-30 · +1dVerified
Washington State AGbd_c9c13c122b01f8b12021-09-30 · +1dVerified
New Hampshire State AGbd_bebd3db5bfb41f532021-10-04 · +3dVerified
Illinois State AGbd_432f7d547946f08c2021-01-01 · +273dCandidate

Name: The Neiman Marcus Group LLC
norm: the neiman marcus

Name: The Neiman Marcus Group LLC
norm: the neiman marcus
Industry: Retail & Consumerllm

Discovered: Sep 9, 2021
Breach occurred: May 2, 2020 – May 17, 2020
Undetected for: 495 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 30, 2021
Affected individuals: 4,354,346state + nationwide
Data types: Identity (basic)Financial account
Data elements: Financial account number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: ExternalFinancial
Regulator citations: Filed notification with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Notified consumer reporting agencies
Sent substitute notice to affected Maine residents
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 22 days(22 days from discovery to filing)
Compliance flags: ME AG ≤30d · 22dME CRA notice due
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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Sep 9, 2021
→ Filed with AG: Oct 1, 2021
22d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Sep 9, 2021 → Filed with AG: Oct 1, 2021	22d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 9 states

View merged incident ↗

Illinois State AGJan 1 · first

Indiana State AG+272d

Massachusetts State AG+272d

California State AG+272d

Delaware State AG+272d

Oregon State AG+272d

Washington State AG+272d

Maine State AG+273d · this page

New Hampshire State AG+276d

Pattern: first filing Jan 1 (IL), last Oct 4 (NH) — a 276-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://www.maine.gov/agviewer/content/ag/985235c7-cb95-4be2-8792-a1252b4f8318/a757e31c-0b2e-4264-b092-29c60d14f72f.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 1, 2021
Raw hash: ac89c24bcee0ddd87ab88c29ef912db77ebc36e7652b3de2a2678f671d325da6

Linked disclosures

Regulatory filings (8) · sorted by filing gap

Reporting entityThe Neiman Marcus Group LLC

Victim entityThe Neiman Marcus Group LLC

Incidentdiscovered Sep 9, 2021

Stated responseNotified consumer reporting agencies

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov