HackingOtherCustomer Data InvolvedIdentity (basic)Government IDHighContained

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

bd_02d73f4bc5d10353 · schema v1 · pii pii-v1

Severity

High

Discovered

Sep 20, 2024

Filed

Sep 27, 2024

To disclose

7 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 reported an external system breach (hacking) occurring on June 12, 2024, discovered on September 20, 2024. The incident affected 10,780 individuals, including 5 Maine residents. Personal information, including names and government identifiers, was potentially accessed. MEMC contained the network, alerted law enforcement, and engaged external cybersecurity professionals. Affected individuals were notified on September 27, 2024, and offered 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Maine clockDiscovered Sep 20, 2024 → Filed with AG Sep 27, 20247d ✓ ME AG ≤30d7 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 · 100 days

discovery → filing · 7 days

Jun 12, 2024

Begins

Sep 20, 2024

Discovered

Sep 27, 2024

Filed

vs. sector median

7 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

Indiana State AGbd_2bcc610c49268ad72024-09-27Verified
Massachusetts State AGbd_7142befaf2f4d8dc2024-09-27Verified
Vermont State AGbd_819edf3eed47d82f2024-09-27Verified
Montana State AGbd_99850374dca5e0982024-09-27Verified

Show 3 more filings ↓up to 11d gap

Maine State AGbd_774ad20302b624932024-10-01 · +4dVerified
New Hampshire State AGbd_a983b45c2b7f794f2024-10-01 · +4dVerified
South Carolina State AGbd_b9480fd520cb15612024-10-08 · +11dVerified

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 20, 2024
Breach occurred: Jun 12, 2024
Undetected for: 100 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 Application
Threat actor: External
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: 7 days(7 days from discovery to filing)
Compliance flags: ME AG ≤30d · 7d
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 20, 2024
→ Filed with AG: Sep 27, 2024
7d 30 days ME AG ≤30d

Statute	Window	Elapsed	Threshold	Status
Maine	Discovered: Sep 20, 2024 → Filed with AG: Sep 27, 2024	7d	30 days	ME AG ≤30d

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 8 filings · 7 states

View merged incident ↗

Indiana State AGSep 27 · first

Massachusetts State AGSep 27 · first

Vermont State AGSep 27 · first

Montana State AGSep 27 · first

Maine State AGSep 27 · first · this page

Maine State AG+4d

New Hampshire State AG+4d

South Carolina State AG+11d

Pattern: first filing Sep 27 (IN), 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-a1252b4f8318/54789b78-0b1c-4be2-a1d2-0fc67556d73f.html
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 27, 2024
Raw hash: 127daf12926f14742076e45fa51658d837ffdc61be26d125d7491d56f553c785

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 20, 2024

Stated responseCommenced a prompt and thorough investigation

ComplianceME AG ≤30d

Extraction provenanceno artifact recorded

Source provenancewww.maine.gov