HackingOtherData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDHighContained

MEMC LLC *Amended Filing to the 9/27 Initial Filing

bd_774ad20302b62493 · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 18, 2024

Filed

Oct 1, 2024

To disclose

13 days

Affected · nationwide

10,7805 in this filing

Linked

8 filings

Confidence

66%

Full breach record for MEMC LLC *Amended Filing to the 9/27 Initial Filing →

MEMC LLC amended its Maine AG breach notice for an external system breach (hacking) occurring on June 12, 2024. The incident was discovered on September 18, 2024, affecting 10,780 individuals (5 in Maine). Personal information including names and government identifiers was exfiltrated. MEMC contained the network, alerted law enforcement, and provided 12 months of credit monitoring.

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Date basis clock✓ Clock withheld · confirmation date13 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 · 98 days

discovery → filing · 13 days

Jun 12, 2024

Begins

Sep 18, 2024

Discovered

Oct 1, 2024

Filed

vs. sector median

6 wks faster

This filing is one of 8 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (7) · sorted by filing gap

New Hampshire State AGbd_a983b45c2b7f794f2024-10-01Verified
Maine State AGbd_02d73f4bc5d103532024-09-27 · +4dCandidate
Indiana State AGbd_2bcc610c49268ad72024-09-27 · +4dVerified
Massachusetts State AGbd_7142befaf2f4d8dc2024-09-27 · +4dVerified

Show 3 more filings ↓up to 7d gap

Vermont State AGbd_819edf3eed47d82f2024-09-27 · +4dVerified
Montana State AGbd_99850374dca5e0982024-09-27 · +4dVerified
South Carolina State AGbd_b9480fd520cb15612024-10-08 · +7dVerified

Name: MEMC LLC *Amended Filing to the 9/27 Initial Filing
norm: memc llc amended filing to the 9 27 initial filing

Name: MEMC LLC *Amended Filing to the 9/27 Initial Filing
norm: memc llc amended filing to the 9 27 initial filing
Industry: Otherllm

Discovered: Sep 18, 2024
Breach occurred: Jun 12, 2024
Undetected for: 98 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 27, 2024
Affected individuals: 10,780state + nationwide
Data types: Identity (basic)Government ID
Data elements: Social Security number
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified Maine Attorney General
Initial access: exploit_public_facing

During the incident: Commenced a prompt and thorough investigation
Contained and secured the network
Eradicated the threat
Alerted law enforcement
Working very closely with external cybersecurity professionals
Changes made: Continually evaluates and modifies our practices to enhance the security and privacy of your information
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 13 days(13 days from discovery to filing)
Compliance flags: Clock withheld · confirmation date

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 7 states

View merged incident ↗

Maine State AGSep 27 · first

Indiana State AGSep 27 · first

Massachusetts State AGSep 27 · first

Vermont State AGSep 27 · first

Montana State AGSep 27 · first

New Hampshire State AG+4d

Maine State AG+4d · this page

South Carolina State AG+11d

Pattern: first filing Sep 27 (ME), last Oct 8 (SC) — a 11-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-a1252b4f8318/066c8279-03da-4e25-bdda-feefa3f4ba3e.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 1, 2024
Raw hash: e1dcf6c6200906e048e12c79f81ec254e99418e4846c7e6829db7a63cf3e5794

Linked disclosures

Regulatory filings (7) · sorted by filing gap

Reporting entityMEMC LLC *Amended Filing to the 9/27 Initial Filing

Victim entityMEMC LLC *Amended Filing to the 9/27 Initial Filing

Incidentdiscovered Sep 18, 2024

Stated responseCommenced a prompt and thorough investigation

ComplianceClock withheld · confirmation date

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov