HackingRetail & ConsumerRetailVulnerability ExploitData ExfiltratedCustomer Data InvolvedIdentity (basic)Financial accountMediumContained

Building Material Distributors, Inc.

bd_3cd9e1d5c7ee83c3 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 26, 2021

Filed

May 26, 2021

To disclose

4 weeks

Affected · nationwide

3,9702 in this filing

Linked

6 filings

Confidence

66%

Full breach record for Building Material Distributors, Inc. →

Building Material Distributors, Inc. experienced an external system breach (hacking) on September 18, 2020, discovered on April 26, 2021. The incident compromised names and financial account numbers (including credit/debit card numbers with security codes/PINs) for 3,970 individuals, including 2 Maine residents. The company provided written notification on May 26, 2021, and offered 12 months of Experian credit monitoring services.

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Maine clockDiscovered Apr 26, 2021 → Filed with AG May 26, 202130d ✓ ME AG ≤30d4 weeks 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 · 220 days

discovery → filing · 4 weeks / 30 days

Sep 18, 2020

Begins

Apr 26, 2021

Discovered

May 26, 2021

Filed

vs. sector median

4 wks faster

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

Indiana State AGbd_37820cc0505c368c2021-05-26Verified
Massachusetts State AGbd_5003f71bdf2c6e272021-05-26Verified
Montana State AGbd_74113da880c98d612021-05-26Verified by operator
California State AGbd_8dbe6f7f9d0797d92021-05-26Verified

Show 1 more filing ↓up to 6d gap

New Hampshire State AGbd_478ae325fdd8fd142021-06-01 · +6dVerified

Name: MCDONALD HOPKINS LLC
norm: mcdonald hopkins

Name: Building Material Distributors, Inc.
norm: building material distributors
Industry: Retail & Consumerllm

Discovered: Apr 26, 2021
Breach occurred: Sep 18, 2020
Undetected for: 220 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 26, 2021
Affected individuals: 3,970state + 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 data breach notice with Maine Attorney General
Initial access: exploit_public_facing

During the incident: Sent written notification to affected consumers
Offered Experian credit monitoring services for 12 months
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 4 weeks(30 days from discovery to filing)
Compliance flags: ME AG ≤30d · 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.
Clock breakdown: Statute Window Elapsed Threshold Status
Maine
Discovered: Apr 26, 2021
→ Filed with AG: May 26, 2021
30d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Apr 26, 2021 → Filed with AG: May 26, 2021	30d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Indiana State AGMay 26 · first

Massachusetts State AGMay 26 · first

Montana State AGMay 26 · first

California State AGMay 26 · first

Maine State AGMay 26 · first · this page

New Hampshire State AG+6d

Pattern: first filing May 26 (IN), last Jun 1 (NH) — a 6-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-a1252b4f8318/0e054586-ae89-400a-95a5-6bbf5750d9ec.shtml
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 26, 2021
Raw hash: 4f652d3be1864ac20349a547345c7070eac6730e1427cf7715f9e84716565f10

Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityMCDONALD HOPKINS LLC

Victim entityBuilding Material Distributors, Inc.

Incidentdiscovered Apr 26, 2021

Stated responseSent written notification to affected consumers

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov