Advantest Confirms Ransomware Attack Stole Personal Information
Summary
Advantest says attackers accessed its systems in February and stole personal information, including identity, medical, and financial data. The company has not confirmed how many people were affected or whether the data was misused.
Key points
- Advantest says an unauthorized third party accessed some of its systems and extracted data during a ransomware attack in February 2026.
- Exposed information may include contact details, dates of birth, government ID and passport numbers, medical information, and financial information.
- The company has not identified whether affected individuals were customers, employees, partners, or a combination, or how many people were affected.
- Advantest says it has no information that the stolen data was leaked or misused; BleepingComputer found no public ransomware-group claim targeting the company.
- Affected individuals can enroll in 18 months of identity theft, credit, and web monitoring services by January 4, 2027.
- The company recommends monitoring accounts and financial statements and being alert to phishing attempts.
Article Details
- Victim Organization
- Advantest Corporation
- Incident Type
- Ransomware attack with confirmed unauthorized access and data theft
- Incident Date
- 2026-02-15
- Disclosure Date
- 2026-10-06
- Data Types Exposed
- Contact information
- Date of birth
- Social Security Number (SSN)
- National ID number
- Driver’s License
- Passport number
- Medical information
- Financial information
- Other ID numbers
- Affected Records
- Not disclosed
- Affected Data Size
- Not disclosed
- Operational Impact
- The attacker accessed some systems and deployed a ransomware payload. The article does not report an operational disruption.
- Ransom Or Extortion
- No ransom demand was reported. BleepingComputer found no public claims by ransomware groups targeting Advantest.
- Claim Status
- confirmed