✅ Official notice on file. Horizon Media filed this data breach notice with the California Attorney General on May 6, 2026. Compare it with the letter you received: the official copy is linked below.
Horizon Media reported a data breach caused by unauthorized access to its computer network.
Key facts
| Discovered | Jan 9, 2026 |
|---|---|
| Incident type | Network intrusion |
| Letter sent | May 6, 2026 |
| Reported to California AG | May 6, 2026 |
| Company helpline | 1-866-579-5479 |
Free credit monitoring
Horizon Media is offering 24 months of Experian IdentityWorks at no cost to people who received the letter. Enroll at www.experianidworks.com/1Bcredit using the activation code printed on your letter. Deadline to enroll: Aug 31, 2026.
What to do now
- Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
- Call the Horizon Media helpline at 1-866-579-5479 if you have questions about your letter.
Timeline
- Jan 9, 2026 — Horizon Media discovers the incident
- May 6, 2026 — Notification letters sent
- May 6, 2026 — Breach reported to the California Attorney General
Other recent data breaches
- Deposition Solutions, LLC data breach
- Mercadien, P.C. CPAs data breach
- Toyo Tire Holdings of Americas Inc. data breach
- STS Aviation Group data breach
- Alma Family Services data breach
Source: notification letter and filing submitted by Horizon Media to the California Attorney General. BreachLetter is not affiliated with Horizon Media. Details extracted from the official letter; always follow the instructions in your own copy.