Case file: Quantum Health, Inc.
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
- May 26, 2026 to Jun 1, 2026
- Discovered
- Jun 1, 2026, as stated in the California letter
- State and federal records
- 6 filings, Aug 14, 2026 to Oct 28, 2026
- Residents counted
- 281,380 in 3 states (VT, TX, WA), latest filing per state
- Everyone affected
- 1,911,559, as reported to Texas AG on Oct 28, 2026
- Information exposed
- Social Security number, Medical / health information, Health insurance, Date of birth, Email address, Phone number, Postal address
- Offered to those affected
- credit or identity monitoring through Experian (term not stated in the letter we read)
- Third party named
- Yes, the letter attributes the incident to a vendor or service provider
- Days to notice
- Past the statutory period in all 5 states that set one, counted from discovery to each state's first record
- Prior incidents
- 1 earlier incident on record for this organization
The letter: "What Happened?: On June 1, 2026, Quantum Health detected a service outage, which affected the availability of certain internal and external systems."
Filings
| Agency | Record date | People | In total | Days to notice | Links |
|---|---|---|---|---|---|
| Vermont Vermont AG | Oct 28, 2026 | 2,360 | 149 days, statute 45 days, over | Record | |
| Texas Texas AG | Oct 28, 2026 | 273,111 | 1,911,559 | 149 days, statute 60 days, over | Record |
| California California AG | Oct 27, 2026 | Not published | Later filing, first record Aug 14, 2026 | Letter Record | |
| Oregon Oregon DOJ | Aug 14, 2026 | 184,376 (total) | 74 days, statute 45 days, over | Record | |
| California California AG | Aug 14, 2026 | Not published | 74 days, statute 30 days, over | Letter Record | |
| Washington Washington AG | Aug 14, 2026 | 5,909 | 74 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
- 149 days from discovery (Jun 1, 2026) to the Vermont record (Oct 28, 2026). Statute: 45 days from discovery or notification of the breach (9 V.S.A. § 2435).
- 149 days from discovery (Jun 1, 2026) to the Texas record (Oct 28, 2026). Statute: 60 days from determination that the breach occurred (Tex. Bus. & Com. Code § 521.053).
- 74 days from discovery (Jun 1, 2026) to the Oregon record (Aug 14, 2026). Statute: 45 days from discovery or notification of the breach (ORS 646A.604).
- 74 days from discovery (Jun 1, 2026) to the California record (Aug 14, 2026). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
- 74 days from discovery (Jun 1, 2026) to the Washington record (Aug 14, 2026). Statute: 30 days from discovery of the breach (RCW 19.255.010).
The statutes
- 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.
- 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.
- 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).
- Oregon: 45 days to notify residents from discovery or notification of the breach, ORS 646A.604. Attorney General when more than 250 Oregon residents are affected, with the consumer notice.
- Washington: 30 days to notify residents from discovery of the breach, RCW 19.255.010. Attorney General within 30 days of discovery when more than 500 Washington residents are affected.
Prior incidents by Quantum Health, Inc.
| Records | Breach window | Filed with | People |
|---|---|---|---|
| Feb 18, 2026 to Jul 30, 2026 | Not stated in the filings | Massachusetts, HHS OCR, Massachusetts | 2,104 total |
Filings more than six months apart are shown as separate incidents.
Sources and method
Records as published by Vermont AG, Texas AG, California AG, Oregon DOJ, Washington AG. Letter facts (discovery date, monitoring, third party) are read from the consumer letter the agency posted, 3 letters 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.