Sam's News — security — 2026-10-11

Security

5 Advantest Discloses Data Breach from February 2026 Ransomware Attack

Japanese chip testing equipment maker Advantest confirmed that hackers stole personal information during a ransomware attack disclosed in February 2026, with data breach notifications sent out in October revealing exposed SSNs, passport numbers, and medical/financial information. The company disclosed the incident months after the initial breach.

• Advantest disclosed in October 2026 that attackers stole personally identifiable information including names, dates of birth, SSNs, passport and driver's license numbers, and medical and financial information during the February 2026 ransomware attack
• At least 500+ California residents affected, with notifications to Massachusetts (14 residents) and Vermont (8 residents)
• No known ransomware group has claimed credit for the attack

Sources: SecurityWeek AI Web Searched