Case file: STS Aviation Group
Every government filing on this incident, the dates as stated, and the days to notice against each state's statute. Built from the records on Nov 9, 2026, agency link on every row. Not legal advice.
The incident
- Breach window
- Aug 5, 2025 to Sep 14, 2025
- Discovered
- Sep 12, 2025, as stated in the California letter
- State and federal records
- 4 filings, Oct 19, 2026 to Oct 20, 2026
- Residents counted
- 6,250 in 3 states (TX, VT, MA), latest filing per state
- Everyone affected
- 54,027, as reported to Texas AG on Oct 20, 2026
- Information exposed
- Social Security number, Driver's license / state ID, Passport number, Financial / bank account, Medical / health information, Health insurance, Date of birth, Postal address, Usernames / passwords, Biometric data, Email address, Phone number
- Offered to those affected
- 24 months of credit or identity monitoring through Experian
- Third party named
- Yes, the letter attributes the incident to a vendor or service provider
- Days to notice
- Past the statutory period in all 3 states that set one, counted from discovery to each state's first record
The letter: "On September 12, 2025, STS Aviation Group identified a cybersecurity incident involving unauthorized access to certain of our systems, which occurred on or around August 5, 2025."
Filings
| Agency | Record date | People | In total | Days to notice | Links |
|---|---|---|---|---|---|
| Texas Texas AG | Oct 20, 2026 | 5,920 | 54,027 | 403 days, statute 60 days, over | Record |
| Vermont Vermont AG | Oct 19, 2026 | 11 | 402 days, statute 45 days, over | Record | |
| Massachusetts Massachusetts OCABR | Oct 19, 2026 | 319 | 402 days, statute no fixed period | Record | |
| California California AG | Oct 19, 2026 | Not published | 402 days, statute 30 days, over | Letter Record |
People is the count the filing gives, residents of the state unless marked total. Days to notice runs from the discovery date the letter states, or from the end of the breach window when no letter states one, to the date on the state's first record of the incident. "Over" marks a count past the days the state's statute allows for notice to residents. The statute's trigger is a question of fact, the days are arithmetic.
Notice timing, state by state
- 403 days from discovery (Sep 12, 2025) to the Texas record (Oct 20, 2026). Statute: 60 days from determination that the breach occurred (Tex. Bus. & Com. Code § 521.053).
- 402 days from discovery (Sep 12, 2025) to the Vermont record (Oct 19, 2026). Statute: 45 days from discovery or notification of the breach (9 V.S.A. § 2435).
- 402 days from discovery (Sep 12, 2025) to the Massachusetts record (Oct 19, 2026). Statute: no fixed period from knowledge or reason to know of the breach (Mass. Gen. Laws ch. 93H, § 3).
- 402 days from discovery (Sep 12, 2025) to the California record (Oct 19, 2026). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
The statutes
- Texas: 60 days to notify residents from determination that the breach occurred, Tex. Bus. & Com. Code § 521.053. Attorney General within 30 days of determination when 250 or more Texas residents are affected.
- Vermont: 45 days to notify residents from discovery or notification of the breach, 9 V.S.A. § 2435. Attorney General within 14 business days of discovery or of the consumer notice, whichever is sooner, every breach.
- Massachusetts: no fixed period to notify residents from knowledge or reason to know of the breach, Mass. Gen. Laws ch. 93H, § 3. Attorney General and OCABR as soon as practicable and without unreasonable delay, every breach.
- California: 30 days to notify residents from discovery or notification of the breach, Cal. Civ. Code § 1798.82. Sample notice to the Attorney General when more than 500 Californians are notified, within 15 days of the consumer notice (effective 2026).
Sources and method
Records as published by Texas AG, Vermont AG, Massachusetts OCABR, California AG. Letter facts (discovery date, monitoring, third party) are read from the consumer letter the agency posted, 1 letter read for this incident, and quoted so you can check them. Texas and HHS publish no letters. First-seen times on each record page. Spot an error? Email support@breachtally.com with this page link.