HackingTechnologyInformationData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDMediumContained

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

bd_a983b45c2b7f794f · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jun 12, 2024

Filed

Oct 1, 2024

To disclose

16 weeks

Affected

7state residents only

Linked

8 filings

Confidence

66%

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

MEMC LLC notified the New Hampshire Attorney General on October 1, 2024, of a cybersecurity incident occurring on June 12, 2024. Unauthorized access to MEMC's network resulted in the potential exfiltration of personal information affecting approximately 7 New Hampshire residents. MEMC contained the network, engaged forensic investigators, and notified law enforcement. Affected residents were offered 12 months of Equifax Credit Watch Gold monitoring.

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Incident timeline

discovery → filing · 16 weeks / 111 days

Jun 12, 2024

Begins

Jun 12, 2024

Discovered

Oct 1, 2024

Filed

vs. sector median

3 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

Maine State AGbd_774ad20302b624932024-10-01Verified
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: MCDONALD HOPKINS LLC
norm: mcdonald hopkins

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

Discovered: Jun 12, 2024
Breach occurred: Jun 12, 2024
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Sep 27, 2024
Affected individuals: 7state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 Channel
Threat actor: External
Regulator citations: Notified New Hampshire Office of the 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
Extensive forensic investigation and manual document review
Changes made: Providing the affected residents with written notification
Advising the affected residents about the process for placing fraud alerts and/or security freezes on their credit files
Obtaining free credit reports
Offering complimentary credit monitoring
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 16 weeks(111 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

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

Maine State AG+4d

New Hampshire 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://mm.nh.gov/files/uploads/doj/remote-docs/memc-20241001.pdf
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: 6d0d3ea6c33a23bf1b396490893119bb949d31d98a167dae8d340a6042819a98

Linked disclosures

Regulatory filings (7) · sorted by filing gap

Reporting entityMCDONALD HOPKINS LLC

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

Incidentdiscovered Jun 12, 2024

Stated responseCommenced a prompt and thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov