HackingEnergy & UtilitiesUtilitiesStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedPIIIdentity (basic)Government IDEmploymentMediumContained

GeoSouthern Energy Corporation and GEP Haynesville II, LLC

bd_7b18b8e611ddc6e8 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 21, 2022

Filed

Jun 26, 2023

To disclose

27 weeks

Affected

5state residents only

Confidence

65%

Full breach record for GeoSouthern Energy Corporation and GEP Haynesville II, LLC →

GeoSouthern Energy Corporation and GEP Haynesville II, LLC reported unauthorized access to systems between Dec 15-21, 2022, detected on Dec 21, 2022. The incident affected 5 New Hampshire residents (employees, dependents, and property owners), exposing PII including SSNs. The company notified federal law enforcement, offered 24 months of Experian credit monitoring, and enhanced security policies.

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Incident timeline

undetected · 6 days

discovery → filing · 27 weeks / 187 days

Dec 15, 2022

Begins

Dec 21, 2022

Discovered

May 25, 2023

Scope determined

Jun 26, 2023

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed5 affectedView incident

Name: GeoSouthern Energy Corporation and GEP Haynesville II, LLC
norm: geosouthern energy corporation and gep haynesville ii

Name: GeoSouthern Energy Corporation and GEP Haynesville II, LLC
norm: geosouthern energy corporation and gep haynesville ii
Industry: Energy & Utilitiesllm

Discovered: Dec 21, 2022
Breach occurred: Dec 15, 2022 – Dec 21, 2022
Undetected for: 6 daysoccurrence → discovery
Materiality determined: May 25, 2023
Notification sent: Jun 23, 2023
Affected individuals: 5state-resident count only
Data types: PIIIdentity (basic)Government IDEmployment
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified federal law enforcement
Initial access: valid_credentials

During the incident: Investigated and responded to the event
Assessed the security of GeoSouthern systems
Identified potentially affected individuals
Notified federal law enforcement regarding the event
Providing access to credit monitoring services through Experian
Changes made: Reviewing and enhancing security policies and procedures
Implementing additional safeguards
Implementing additional training to its employees
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 27 weeks(187 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

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/geosouthern-energy-corporation-gep-haynesville-ii-20230626.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Jun 26, 2023
Raw hash: 853c522902a3108320b3900e7fe4b0e22d05723ba08ecb02f6ccc955dbe14e17

Reporting entityGeoSouthern Energy Corporation and GEP Haynesville II, LLC

Victim entityGeoSouthern Energy Corporation and GEP Haynesville II, LLC

Incidentdiscovered Dec 21, 2022

Stated responseInvestigated and responded to the event

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov