HackingFinancial ServicesFinanceVulnerability ExploitCL0PZero-DayData ExfiltratedTargetedActor NamedIdentity (basic)LowContained

Enstar (US) Inc.

bd_e51b8ecd695ec3e8 · schema v1 · pii pii-v1

Severity

Low

Discovered

May 31, 2023

Filed

May 9, 2024

To disclose

49 weeks

Affected

1state residents only

Linked

4 filings

Confidence

66%

Enstar (US) Inc. notified Montana residents of a data breach caused by the CL0P ransomware group exploiting a zero-day vulnerability in MOVEit Transfer. Unauthorized access occurred May 29-31, 2023, resulting in data exfiltration. Enstar engaged forensic specialists, notified law enforcement, and offered 24 months of credit monitoring. The incident was discovered on May 31, 2023.

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Incident timeline

undetected · 2 days

discovery → filing · 49 weeks / 344 days

May 29, 2023

Begins

May 31, 2023

Discovered

May 9, 2024

Filed

vs. sector median

+41 wks slower

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Maine State AGbd_246aa92e07f1db8f2024-05-10 · +1dVerified
Massachusetts State AGbd_bc2af957499dfb662024-05-10 · +1dVerified
Illinois State AGbd_4473e8e880815b892024-05-01 · +8dVerified

Name: Enstar (US) Inc.
norm: enstar

Name: Enstar (US) Inc.
norm: enstar
Industry: Financial Servicesllm

Discovered: May 31, 2023
Breach occurred: May 29, 2023 – May 31, 2023
Undetected for: 2 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 20, 2023
Affected individuals: 1state-resident count only
Data types: Identity (basic)
Attack vector: Unauthorized Access· CL0P
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1041 Exfiltration Over C2 ChannelT1486 Data Encrypted for Impact
Threat actor: CL0PExternalFinancial
Regulator citations: reported this incident to law enforcement
Initial access: exploit_public_facing

During the incident: Moved quickly to apply all software updates provided by the vendor
Undertook recommended mitigation steps
Launched an investigation, with the assistance of third-party cyber forensic specialists
Reported this incident to law enforcement
Taking steps to implement additional safeguards and review policies and procedures relating to data privacy and security
Offering you complimentary access to 24 months of credit monitoring and identity theft restoration services through Experian Consumer Services
Changes made: Implement additional safeguards
Review policies and procedures relating to data privacy and security
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 49 weeks(344 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Illinois State AGMay 1 · first

Montana State AG+8d · this page

Maine State AG+9d

Massachusetts State AG+9d

Pattern: first filing May 1 (IL), last May 10 (MA) — a 9-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://dojmt.gov/wp-content/uploads/OCP/Consumer-notification-letter-1381.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 9, 2024
Raw hash: d63c90fad6572f80a91e7baae445958d2e3047658552451e6237706207d08025

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityEnstar (US) Inc.

Victim entityEnstar (US) Inc.

Incidentdiscovered May 31, 2023

Stated responseMoved quickly to apply all software updates provided by the vendor

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov