● Covered by 2 sources · 2 reportsMedium impact2 negative
Advantest Confirms Personal Data Stolen in February 2026 Ransomware Attack
Key points
- Advantest confirmed PII theft from a February 2026 ransomware attack.
- Stolen data includes SSNs, driver's licenses, passports, and financial details.
- The company initially could not determine if data was impacted.
- Over 500 California residents and 22 individuals in Massachusetts and Vermont are affected.
- Advantest states there is no information suggesting public disclosure or misuse of data.
Data Breach Confirmed
Advantest Corporation, a global manufacturer of automated test equipment for the semiconductor industry, has confirmed that personally identifiable information (PII) was stolen during a ransomware attack that occurred in February 2026. The company is now notifying affected individuals about the breach.
Details of the Attack
On February 15, 2026, a threat actor breached Advantest's network, gained access to some systems, and deployed a ransomware payload. At the time of the initial disclosure, the company was unable to determine if customer or employee data had been impacted. A data breach notification dated October 6, 2026, confirmed that data was extracted from their servers.
Types of Stolen Information
The extracted PII includes contact information, date of birth, Social Security Numbers (SSN), National ID numbers, driver’s licenses, passport numbers, medical information, and financial information. Advantest stated that while there is no information suggesting public disclosure or misuse of the PII, the incident increases the risk of identity theft or fraud for those affected.
Scope of Impact
While Advantest has not disclosed the total number of individuals impacted, filings with various state Attorney General offices provide some insight. More than 500 California residents are affected, with additional notifications listing 14 individuals in Massachusetts and 8 in Vermont.
✨ This summary was generated by AI from the outlets' reporting listed below. It is not independently verified and may contain errors — check the original sources. How BrevFeed works →
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How outlets covered it
Advantest, a Japanese chip testing equipment manufacturer, has confirmed that personal information was stolen during a ransomware attack disclosed in February 2026. The stolen data includes names, dates of birth, contact information, SSNs, passport and driver’s license numbers, and medical and financial details, increasing the risk of identity theft for affected individuals.
Advantest Corporation, a semiconductor equipment manufacturer, confirmed that a February 2026 ransomware attack resulted in the theft of personally identifiable information (PII). The stolen data includes contact information, Social Security Numbers, driver's licenses, and financial details, posing an identity theft risk to affected individuals.