See Featured Articles
Development Services Group Data Breach Lawsuit Investigation
Development Services Group confirmed that an unauthorized actor accessed and exfiltrated company files on September 22, 2025. If you received a notice dated November 14, 2025, you may be entitled to complimentary credit monitoring and could qualify to participate in legal action. Contact our team for a free, confidential case review.
What Happened
According to a filing with the Maine Attorney General, Development Services Group, Inc. (Development Services Group) detected a network disruption on September 7, 2025. The company:
- Took segments of its network offline to contain the event.
- Engaged external cybersecurity specialists to restore operations and investigate.
- Confirmed on September 22, 2025 that certain files were acquired by an unauthorized actor.
- Completed a file review on October 29, 2025 to identify affected individuals.
- Began mailing consumer notices on November 14, 2025.
Information Exposed
The investigation determined that at least the following data element was present in the compromised files:
- Name
The company states it has no indication of actual or attempted misuse of the information at this time.
Company Response & Free Services
Development Services Group reported the incident to federal law enforcement and is reviewing its security safeguards. Impacted individuals are eligible for:
- Single-bureau credit monitoring with credit report and score alerts for 12 months.
- Proactive fraud assistance and remediation through Cyberscout, a TransUnion company.
Key Dates
- Network disruption discovered: September 7, 2025
- Unauthorized acquisition confirmed: September 22, 2025
- File review completed: October 29, 2025
- Consumer notice mailed: November 14, 2025
- AG filing date: November 12, 2025
Your Next Steps
- Review the breach letter and enroll in the free credit-monitoring service by the stated deadline.
- Monitor all bank, credit-card, and insurance statements for unfamiliar activity.
- Place a fraud alert or security freeze with credit bureaus if you observe suspicious behavior.
- Document any out-of-pocket expenses linked to identity theft or account remediation.
- Contact us to discuss your legal rights and potential compensation.
Company Overview
Development Services Group is a research and market-analysis firm founded in 1981 and headquartered at 7315 Wisconsin Ave, Suite 800 E, Bethesda, MD, USA.
- Industry: Market Analysis or Research
- Employees: 59
- Website: dsgonline.com
- Social Media: Facebook • X/Twitter • LinkedIn
Frequently Asked Questions
I received a data breach letter from Development Services Group — what should I do?
Follow the instructions to enroll in the complimentary credit-monitoring service, remain vigilant by checking financial statements, and consult a data-breach attorney about your rights.
How do I submit a claim related to the Development Services Group data breach?
Potential claims are being evaluated. Preserve your breach notice and any evidence of fraud, then request a free case review to determine eligibility.
Am I eligible to join a lawsuit against Development Services Group?
If you received the November 14, 2025 notification, you may qualify. Eligibility often depends on whether your personal data was involved and any resulting damages.
What information did the Development Services Group breach expose?
The company confirmed that names were stored in the files obtained by the unauthorized actor.
Did Development Services Group offer credit monitoring, and for how long?
Yes. Impacted individuals receive single-bureau credit monitoring, credit reports, and score alerts for 12 months through Cyberscout.
How many people were affected by the Development Services Group breach?
The public filing did not specify a person-count at the time of this publication.
How can I get the official breach notice (PDF) for Development Services Group?
You can download the notice directly from the Maine Attorney General website using the button above.