✅ Official notice on file. Advantest America, Inc. filed this data breach notice with the California Attorney General on Oct 5, 2026. Compare it with the letter you received: the official copy is linked below.
Advantest America, Inc. reported a data breach. The information involved includes Social Security number, driver's license / state id, passport number, date of birth, medical information, health insurance.
Key facts
| Data exposed | Social Security number, Driver's license / state ID, Passport number, Date of birth, Medical information, Health insurance, Username / password |
|---|---|
| Letter sent | Oct 6, 2026 |
| Reported to California AG | Oct 5, 2026 |
| Company helpline | 1-844-301-0189 |
Free credit monitoring
Advantest America, Inc. is offering 18 months of Kroll at no cost to people who received the 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.
- Your date of birth is often used to verify identity: add a fraud alert to your credit file so lenders must confirm it is really you.
- 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.
- Change the password on this account and on any other site where you reused it, and turn on two-factor authentication.
- Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
- Call the Advantest America, Inc. helpline at 1-844-301-0189 if you have questions about your letter.
Timeline
- Oct 5, 2026 — Breach reported to the California Attorney General
- Oct 6, 2026 — Notification letters sent
Other recent data breaches
- Deposition Solutions, LLC data breach
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- STS Aviation Group data breach
- Alma Family Services data breach
Source: notification letter and filing submitted by Advantest America, Inc. to the California Attorney General. BreachLetter is not affiliated with Advantest America, Inc.. Details extracted from the official letter; always follow the instructions in your own copy.