✅ Official notice on file. Sensata Technologies, Inc. filed this data breach notice with the California Attorney General on Jun 5, 2025. Compare it with the letter you received: the official copy is linked below.
Sensata Technologies, Inc. reported a data breach caused by a ransomware attack that encrypted or stole files. The information involved includes Social Security number, driver's license / state id, passport number, date of birth, financial account / bank info, payment card.
Key facts
| Unauthorized access | Mar 28, 2025 – Apr 6, 2025 |
|---|---|
| Discovered | Apr 6, 2025 |
| Incident type | Ransomware |
| Data exposed | Social Security number, Driver's license / state ID, Passport number, Date of birth, Financial account / bank info, Payment card, Health insurance, Home address, Tax ID / TIN |
| Reported to California AG | Jun 5, 2025 |
| Company helpline | 1-833-931-7577 |
Free credit monitoring
Sensata Technologies, Inc. is offering 12 months of Experian IdentityWorks at no cost to people who received the letter. Enroll at www.experianidworks.com/3bcredit 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.
- 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.
- 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.
- 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 Sensata Technologies, Inc. helpline at 1-833-931-7577 if you have questions about your letter.
Timeline
- Mar 28, 2025 — Unauthorized access begins
- Apr 6, 2025 — Sensata Technologies, Inc. discovers the incident
- Jun 5, 2025 — Breach reported to the California Attorney General
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Source: notification letter and filing submitted by Sensata Technologies, Inc. to the California Attorney General. BreachLetter is not affiliated with Sensata Technologies, Inc.. Details extracted from the official letter; always follow the instructions in your own copy.