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STS Aviation Group Data Breach Exposes Sensitive Personal Information

STS Aviation Group Data Breach Exposes Sensitive Personal Information

First seen 21 Oct 2026, 01:47 UTC • •

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ThreatCluster AI
ThreatCluster •October 21, 2026 at 03:18 UTC
  • •STS Aviation Group reported a data breach affecting 319 individuals in Massachusetts.
  • •Sensitive personal information, including Social Security numbers and medical data, was compromised.
  • •The company is offering two years of free identity protection services to affected individuals.

STS Aviation Group disclosed a data breach on October 19, 2026, revealing unauthorized access to its computer systems dating back to August 5, 2025. The breach has impacted 319 residents in Massachusetts, with exposed data including names, Social Security numbers, financial information, and medical records. The company is offering two years of free identity protection and credit monitoring services to affected individuals. The breach was reported to attorneys general in California, Massachusetts, and Vermont, but specific details on the total number of individuals affected remain undisclosed. Federman & Sherwood is investigating whether STS Aviation Group had adequate cybersecurity measures in place to prevent the breach. The incident raises concerns about the potential for identity theft and misuse of sensitive information.

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Timeline

2025-08-05
Unauthorized access detected
An unauthorized third party gained access to STS Aviation Group's computer systems.
Claimdepot
2026-09-19
Breach scope determined
STS Aviation Group confirmed that personal information had been obtained by the unauthorized party.
Claimdepot
2026-10-19
Breach disclosed
STS Aviation Group disclosed the breach to attorneys general and began notifying affected individuals.
Claimdepot

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Common questions

What types of personal information were exposed?
The breach exposed names, Social Security numbers, financial information, medical records, and more.
How many individuals were affected?
The breach has impacted 319 residents in Massachusetts.
What support is being offered to affected individuals?
STS Aviation Group is providing two years of free identity protection and credit monitoring services.