✅ Official notice on file. NCH Corporation filed this data breach notice with the California Attorney General on Oct 30, 2026. Compare it with the letter you received: the official copy is linked below.
NCH Corporation reported a data breach caused by unauthorized access to its computer network. The information involved includes Social Security number, driver's license / state id, passport number, financial account / bank info, payment card, medical information.
Key facts
| Unauthorized access | Jan 21, 2026 – Feb 25, 2026 |
|---|---|
| Discovered | Mar 9, 2026 |
| Incident type | Network intrusion |
| Data exposed | Social Security number, Driver's license / state ID, Passport number, Financial account / bank info, Payment card, Medical information, Health insurance, Tax ID / TIN |
| Reported to California AG | Oct 30, 2026 |
| Company helpline | 1-866-329-9984 |
Free credit monitoring
NCH Corporation is offering IDX at no cost to people who received the letter. Enroll at app.idx.us/account-creation/protect using the activation code printed on your letter.
What to do now
- Freeze your credit for free at Equifax, Experian and TransUnion, and request an IRS Identity Protection PIN at irs.gov to block fraudulent tax returns in your name.
- Contact your state DMV to ask whether your license number should be replaced, and watch for accounts opened with your ID.
- Consider reporting the exposure to the U.S. State Department if you see suspicious activity; a new passport invalidates the old number.
- Call your bank, ask about extra monitoring or a new account number, and review statements for small unknown charges.
- Ask your card issuer to replace the card and review recent transactions; card fraud is usually refunded if reported quickly.
- Review the Explanation of Benefits statements from your insurer for services you never received.
- Ask your insurer whether a new member ID can be issued, and check claims made under your policy.
- Request an IRS Identity Protection PIN and watch for IRS letters about returns you did not file.
- Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
- Call the NCH Corporation helpline at 1-866-329-9984 if you have questions about your letter.
Timeline
- Jan 21, 2026 — Unauthorized access begins
- Mar 9, 2026 — NCH Corporation discovers the incident
- Oct 30, 2026 — Breach reported to the California Attorney General
Other recent data breaches
- Hippo Analytics Inc. data breach
- Center Theatre Group of Los Angeles data breach
- Cotton Incorporated data breach
- DreamHost, LLC data breach
- Aesto, LLC data breach
Source: notification letter and filing submitted by NCH Corporation to the California Attorney General. BreachLetter is not affiliated with NCH Corporation. Details extracted from the official letter; always follow the instructions in your own copy.