✅ Official notice on file. Stack Sports filed this data breach notice with the California Attorney General on Jul 27, 2026. Compare it with the letter you received: the official copy is linked below.
Stack Sports reported a data breach caused by unauthorized access to its computer network.
Key facts
| Discovered | Jun 8, 2026 |
|---|---|
| Incident type | Network intrusion |
| Letter sent | Jul 27, 2026 |
| Reported to California AG | Jul 27, 2026 |
| Company helpline | 1-855-830-6490 |
Free credit monitoring
Stack Sports is offering 24 months of IDX at no cost to people who received the letter. Enroll at response.idx.us/StackSports using the activation code printed on your letter.
What to do now
- Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
- Call the Stack Sports helpline at 1-855-830-6490 if you have questions about your letter.
Timeline
- Jun 8, 2026 — Stack Sports discovers the incident
- Jul 27, 2026 — Notification letters sent
- Jul 27, 2026 — Breach reported to the California Attorney General
Other recent data breaches
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Source: notification letter and filing submitted by Stack Sports to the California Attorney General. BreachLetter is not affiliated with Stack Sports. Details extracted from the official letter; always follow the instructions in your own copy.