// UNCLASSIFIED // CLEARED FOR PUBLIC RELEASE //
FILE BRC-newsDTG 0600Z
ColdRecon / Breach Radar / Advantest Corporation
Breach Record

Advantest Corporation

DISCLOSED 2026-10-11 · RANSOMWARE · RANSOMWARE

Advantest Corporation, a Japanese semiconductor test equipment company, disclosed that a ransomware attack earlier this year compromised sensitive personal information of individuals associated with the company. The company did not provide details on the number of affected individuals or the specific data types beyond personal information.

The record

What we know

Disclosed
2026-10-11
Attack vector
Ransomware
Sector
semiconductor test equipment
Country
Japan
Data classes exposed
personal information
RANSOMWARE
ColdRecon assessment

Could a positive-security control have prevented this?

Verdict · unclear · opinion

Insufficient details about the attack vector and entry point to assess whether a positive-security model would have prevented this ransomware attack.

Our assessments are opinion, grounded in the cited public facts. Read them critically.

Sources

Cited reporting

↗ www.teiss.co.uk
Similar vector · recent

Other ransomware breaches on file

ASOS · 2026-10-11 IDCF Cloud · 2026-10-11 Advantest · 2026-10-11 IDC Frontier · 2026-10-11 Advantest · 2026-10-10 IDCF Cloud · 2026-10-10 Nikkei · 2026-10-09 ASOS · 2026-10-09

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