MalwareFinancial ServicesFinanceRansomwareCapture Stored DataData ExfiltratedData EncryptedCustomer Data InvolvedIdentity (basic)Government IDPIIMediumContained

The Sheffield Group and Sheffield Risk

bd_3bda2ea243090ac5 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 1, 2023

Filed

Feb 6, 2024

To disclose

44 weeks

Affected

1state residents only

Linked

3 filings

Confidence

66%

Full breach record for The Sheffield Group and Sheffield Risk →

Sheffield Risk notified affected individuals in Montana of a cybersecurity incident discovered in April 2023. Unauthorized actors accessed the network, infected it with malware, and exfiltrated claimant information including names, SSNs, and claim details. Sheffield reported the incident to the FBI and the Alabama Department of Insurance, and offered 12 months of complimentary identity monitoring services.

J jump to incidentP pin to compareR raw source

Incident timeline

Apr 21, 2023

Begins

Feb 6, 2024

Filed

vs. sector median

+36 wks slower

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Indiana State AGbd_2e3f70f6c1fe6e442024-02-06Verified
Massachusetts State AGbd_fd2e274a207316dd2024-02-06Verified

Name: The Sheffield Group and Sheffield Risk
norm: the sheffield group and sheffield risk

Name: The Sheffield Group and Sheffield Risk
norm: the sheffield group and sheffield risk
Industry: Financial Servicesllm

Discovered: Apr 1, 2023
Breach occurred: Apr 21, 2023
Materiality determined: —
Notification sent: Feb 6, 2024
Affected individuals: 1state-resident count only
Data types: Identity (basic)Government IDPII
Data elements: Social Security number
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: reported the event to the FBIreported the event to Alabama Department of Insurance

During the incident: Initiated a comprehensive investigation
Reported the event to the FBI and Alabama Department of Insurance
Offering you 12 months of complimentary identity monitoring and protection services
Changes made: Reviewing and enhancing policies and procedures as appropriate
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 44 weeks(311 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Indiana State AGFeb 6 · first

Massachusetts State AGFeb 6 · first

Montana State AGFeb 6 · first · this page

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-1081.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 6, 2024
Raw hash: d82cde9b0c25eaaaa0b012cdecaf016c99d1d14c595f13e6eea4a567ce75cf67

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityThe Sheffield Group and Sheffield Risk

Victim entityThe Sheffield Group and Sheffield Risk

Incidentdiscovered Apr 1, 2023

Stated responseInitiated a comprehensive investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov