AngMar Reports Breach Affecting 35,916 Texans; Interlock Claims 710 GB Stolen

Summary
AngMar reported unauthorized access to its systems in July 2026, affecting 35,916 Texans. Ransomware group Interlock later claimed it stole 710 GB, a claim absent from AngMar’s notice; the full scope remains unknown.
Key points
- AngMar said an unauthorized actor accessed its systems around July 18, 2026; the company detected unusual activity on July 20 and brought in forensic investigators.
- A Texas regulatory filing lists 35,916 affected Texas residents; the nationwide impact is not yet known.
- Potentially exposed information includes personal details and medical records, according to the article.
- Interlock claimed on August 11, 2026, that it had stolen 710 GB of AngMar data. The company’s customer notice did not mention the claim.
- AngMar said it had no evidence that the information had been or would be misused.
- AngMar is offering affected people free credit monitoring, a credit report and a credit score; the article notes these measures do not address risks specific to exposed medical data.
Article Details
- Victim Organization
- AngMar Management Services
- Incident Type
- Unauthorized access to company systems; Interlock claimed data exfiltration.
- Incident Date
- 2026-07-18
- Data Types Exposed
- Medical records
- Personal information
- Affected Records
- 35,916 Texas residents; the article says the total national scope is undetermined.
- Affected Data Size
- Interlock claimed to have exfiltrated 710 GB; this claim is not mentioned in AngMar's notification.
- Operational Impact
- Unknown; the article reports no operational disruption.
- Ransom Or Extortion
- Interlock publicly claimed the attack and possession of 710 GB of AngMar data. The article does not report a ransom demand.
- Claim Status
- claimed
