Case file: Horizon Media
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
- Jan 9, 2026
- Discovered
- Jan 9, 2026, as stated in the California letter
- State and federal records
- 3 filings, May 6, 2026
- Residents counted
- 77 in 2 states (VT, MA), latest filing per state
- Everyone affected
- No filing gives a total
- Information exposed
- Social Security number, Medical / health information, Financial / bank account, Postal address
- Offered to those affected
- 24 months of credit or identity monitoring through Experian
- Third party named
- No
- Days to notice
- Past the statutory period in all 2 states that set one, counted from discovery to each state's first record
The letter: "On January 9, 2026, Horizon learned that an unauthorized actor gained access to a limited portion of our systems through a sophisticated social engineering event."
Filings
| Agency | Record date | People | In total | Days to notice | Links |
|---|---|---|---|---|---|
| Vermont Vermont AG | May 6, 2026 | 10 | 117 days, statute 45 days, over | Record | |
| Massachusetts Massachusetts OCABR | May 6, 2026 | 67 | 117 days, statute no fixed period | Record | |
| California California AG | May 6, 2026 | Not published | 117 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
- 117 days from discovery (Jan 9, 2026) to the Vermont record (May 6, 2026). Statute: 45 days from discovery or notification of the breach (9 V.S.A. § 2435).
- 117 days from discovery (Jan 9, 2026) to the Massachusetts record (May 6, 2026). Statute: no fixed period from knowledge or reason to know of the breach (Mass. Gen. Laws ch. 93H, § 3).
- 117 days from discovery (Jan 9, 2026) to the California record (May 6, 2026). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82).
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.
- 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 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.