HackingProfessional ServicesProfessional ServicesStolen CredentialsCapture Stored DataData ExfiltratedCustomer Data InvolvedPIIIdentity (basic)LowContained

Development Services Group, Inc.

bd_b7e40ef3bdebfba1 · schema v1 · pii pii-v1

Severity

Low

Discovered

Sep 7, 2025

Filed

Nov 11, 2025

To disclose

9 weeks

Affected

9state residents only

Linked

6 filings

Confidence

66%

Full breach record for Development Services Group, Inc. →

Development Services Group, Inc. notified employees of a data security event where an unauthorized actor acquired files from its network on September 22, 2025. The company discovered the disruption on September 7, 2025. Personal information was contained in the files taken. The company engaged cybersecurity specialists, notified federal law enforcement, and is offering credit monitoring services.

J jump to incidentP pin to compareR raw source

Incident timeline

Sep 22, 2025

Begins

Nov 11, 2025

Filed

vs. sector median

9 wks faster

This filing is one of 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteqilinbd_6f73677778197ae62024-06-05 · +524dCandidate

Regulatory filings (4) · sorted by filing gap

Maine State AGbd_e5a39f06261cbaf02025-11-12 · +1dVerified
Nebraska State AGbd_360bbeecd40278642025-11-14 · +3dVerified
Indiana State AGbd_54d507479b18ee632025-11-14 · +3dVerified
Vermont State AGbd_ca845ad330fb7dee2025-11-14 · +3dVerified

Name: Development Services Group, Inc.
norm: development services
Domain: dsgonline.com

Name: Development Services Group, Inc.
norm: development services
Domain: dsgonline.com
Industry: Professional Servicesllm

Discovered: Sep 7, 2025
Breach occurred: Sep 22, 2025
Materiality determined: —
Notification sent: Nov 6, 2025
Affected individuals: 9state-resident count only
Data types: PIIIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified federal law enforcement
Initial access: valid_credentials

During the incident: Took parts of our network offline
Partnered with cybersecurity specialists to assist with the remediation efforts and investigate the disruption
Notified federal law enforcement
Offering credit monitoring and identity protection services at no cost
Changes made: Reviewing our existing security safeguards and policies already in place for ways to remain resilient against future threats
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(65 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Montana State AGNov 11 · 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/2025/11/Consumer-notification-letter-21.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 11, 2025
Raw hash: 2cbe8f6d1c1956e643986c637c7e5cd9b5730213ec222c107027bf6d3431ab84

Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Reporting entityDevelopment Services Group, Inc.

Victim entityDevelopment Services Group, Inc.

Incidentdiscovered Sep 7, 2025

Stated responseTook parts of our network offline

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov