HackingRetail & ConsumerRetailStolen CredentialsSupply Chain (3P Vendor)Data ExfiltratedFinancial accountPIIMediumContained

Letter Arts Book Club, Inc

bd_ca697edd9b433664 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 6, 2023

Filed

Jun 30, 2023

To disclose

24 days

Affected · nationwide

2,7469 in this filing

Linked

2 filings

Confidence

66%

Full breach record for Letter Arts Book Club, Inc →2 incidents on file

Letter Arts Book Club, Inc. reported a data breach involving its third-party e-commerce provider, CommerceV3. Unauthorized access occurred between Nov 24, 2021, and Dec 14, 2022, potentially exposing cardholder data (financial account numbers and credit/debit card numbers with security codes/PINs). The breach affected 2,746 individuals, including 9 Maine residents. Notification was sent on July 5, 2023. Letter Arts Book Club's internal systems remained secure.

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Maine clockDiscovered Jun 6, 2023 → Filed with AG Jun 30, 202324d ✓ ME AG ≤30d24 days discovery → filing

Incident timeline

undetected · 559 days

discovery → filing · 24 days

Nov 24, 2021

Begins

Jun 6, 2023

Discovered

Jun 30, 2023

Filed

vs. sector median

4 wks faster

This filing is one of 2 about the same incident.View merged incident

Part of CommerceV3 supply-chain incident (2023) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Indiana State AGbd_7b808a13e89eb6cd2023-07-05 · +5dVerified

Name: Letter Arts Book Club, Inc
norm: letter arts book club
Domain: johnnealbooks.com

Name: Letter Arts Book Club, Inc
norm: letter arts book club
Domain: johnnealbooks.com
Industry: Retail & Consumerllm

Discovered: Jun 6, 2023
Breach occurred: Nov 24, 2021 – Dec 14, 2022
Undetected for: 559 daysoccurrence → discovery
Materiality determined: —
Notification sent: Jul 5, 2023
Affected individuals: 2,746state + nationwide
Data types: Financial accountPII
Data elements: Financial account number
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: ExternalFinancial
Regulator citations: Filed data breach notice with Maine Attorney General
Third party: via CommerceV3
Initial access: external_remote_services

During the incident: CommerceV3 conducted a thorough forensic investigation alongside third-party cybersecurity experts
CommerceV3 worked alongside the major card brands and banks during this forensic investigation
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 24 days(24 days from discovery to filing)
Compliance flags: ME AG ≤30d · 24d
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
Maine
Discovered: Jun 6, 2023
→ Filed with AG: Jun 30, 2023
24d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Jun 6, 2023 → Filed with AG: Jun 30, 2023	24d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Maine State AGJun 30 · first · this page

Indiana State AG+5d

Pattern: first filing Jun 30 (ME), last Jul 5 (IN) — a 5-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-a1252b4f8318/1d68ca24-231d-4a2f-88e6-712e7da2a780.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 30, 2023
Raw hash: d4fbbe0954fb9dbe1fa3e9f94a8cafa73193f96d6a5b4efb5639f84cc5635749

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityLetter Arts Book Club, Inc

Victim entityLetter Arts Book Club, Inc

Incidentdiscovered Jun 6, 2023

Stated responseCommerceV3 conducted a thorough forensic investigation alongside third-party cybersecurity experts

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov