HackingEnergy & UtilitiesUtilitiesStolen CredentialsDelayed DiscoveryGovernment IDPIIMediumContained

ProQuest Energy LLC

bd_489ac0696cbc5c30 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 9, 2021

Filed

Oct 13, 2021

To disclose

27 weeks

Affected

33state residents only

Confidence

66%

Full breach record for ProQuest Energy LLC →

PetroQuest Energy LLC notified Montana residents of a cybersecurity incident discovered on April 9, 2021. Unauthorized access occurred between March 13 and April 9, 2021. The actor may have accessed landowner lease agreements containing W-9s with Social Security Numbers. No evidence of data exfiltration was found. PetroQuest engaged forensic investigators and offered 12 months of credit monitoring.

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Incident timeline

undetected · 27 days

discovery → filing · 27 weeks / 187 days

Mar 13, 2021

Begins

Apr 9, 2021

Discovered

Oct 13, 2021

Filed

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed33 affectedView incident

Name: ProQuest Energy LLC
norm: proquest energy

Name: ProQuest Energy LLC
norm: proquest energy
Industry: Energy & Utilitiesllm

Discovered: Apr 9, 2021
Breach occurred: Mar 13, 2021 – Apr 9, 2021
Undetected for: 27 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: 33state-resident count only
Data types: Government IDPII
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Engaged a forensic team to review the impacted system
Offering access to credit monitoring and identity theft protection services for 12 months at no cost to you, through Equifax
Changes made: Updating existing firewalls
Removing all public facing servers from the network
Implementing stronger AV and EDR software
Replacing remote connection software with a version that supports MFA
Improving offsite backup testing
Requiring MFA for admin accounts
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://dojmt.gov/wp-content/uploads/OCP/Consumer-Notification-Letter-1.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 13, 2021
Raw hash: f2566555fed4b727519c032b885709ac099b8b01497e25df32fe3a5c1436bcf8

Reporting entityProQuest Energy LLC

Victim entityProQuest Energy LLC

Incidentdiscovered Apr 9, 2021

Stated responseEngaged a forensic team to review the impacted system

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov