Almeida Law Group is investigating a data breach at Ludlum Measurements, Inc. The breach occurred on February 27th, 2026 – March 24th, 2026 and was discovered on April 29th, 2026. If you were affected, contact Almeida Law Group.
About Ludlum Measurements, Inc.
Ludlum Measurements, Inc. (LMI) is a designer and manufacturer of radiation detection and monitoring equipment, including geiger counters, scintillation detectors, and dosimeters. Founded in 1962 and headquartered at 501 Oak Street in Sweetwater, Texas, the company’s instruments are used in personnel monitoring, border security, and emergency response. The breach exposed a combination of sensitive personal, financial, and health insurance information, making the potential consequences for affected individuals particularly serious.
What Happened?
Ludlum Measurements, Inc. was listed in a Texas Attorney General data security breach report (record ID BR-0005128) published on June 22nd, 2026. According to that filing, the breach occurred between February 27th, 2026 and March 24th, 2026 and was discovered on April 29th, 2026. A total of 3,191 individuals were affected. The compromised information included names, Social Security numbers, government-issued ID numbers (such as passports and state ID cards), financial information (such as account numbers and credit or debit card numbers), and health insurance information. Ludlum Measurements notified affected consumers by U.S. Mail.
The Embargo ransomware group claimed responsibility for an attack on Ludlum Measurements, with the claim appearing on ransomware tracking platforms around March 26th, 2026 — closely aligned with the breach end date in the Texas Attorney General filing. The group claimed to have exfiltrated approximately 5 terabytes of data, including source code and client data. Embargo is a Rust-based ransomware-as-a-service (RaaS) group that emerged around mid-2024, employs double-extortion tactics, and has been associated with approximately $34.2 million in transaction volume. Researchers have noted possible links between Embargo and the former BlackCat/ALPHV ransomware operation.
Key Facts at a Glance
- Company or Organization: Ludlum Measurements, Inc.
- Industry: Manufacturing — Radiation Detection and Monitoring Equipment
- Location: Sweetwater, Texas
- Incident type: Ransomware attack with data exfiltration (Embargo ransomware group)
- Date of breach: February 27th, 2026 – March 24th, 2026
- Date breach discovered: April 29th, 2026
- Date of consumer notification: June 22nd, 2026 (date published at Texas Attorney General website)
- Total persons affected: 3,191
- Source: Texas Attorney General Data Security Breach Report (BR-0005128); Ransomware.live; TRM Labs — Unmasking Embargo Ransomware
What Should You Do?
If you received a notice from Ludlum Measurements, Inc., you should act promptly to protect yourself. Place a fraud alert or credit freeze with the three major credit bureaus — Equifax, Experian, and TransUnion — and monitor your credit reports for any unfamiliar accounts or activity. You can request free credit reports at AnnualCreditReport.com. Because health insurance information was involved, review any Explanation of Benefits statements you receive for services you did not authorize, and consider checking your medical records for inaccuracies. For broader guidance on recovering from identity theft, visit IdentityTheft.gov. If Ludlum Measurements offered identity theft protection services, enroll as soon as possible and note any enrollment deadline included in your notification letter.
Your Legal Rights
If your personal or health information was involved in this breach, you may have legal rights depending on the facts of the incident and the law in your state. Almeida Law Group represents consumers in data breach and privacy litigation and can help you evaluate whether you may have a claim. Contact us at (708) 529-5418 or through our contact page for a free case evaluation.
