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ColdRecon / Breach Radar / Advantest
Breach Record

Advantest

DISCLOSED 2026-10-10 · RANSOMWARE · RANSOMWARE

Japanese chip testing giant Advantest disclosed a data breach months after a ransomware attack. The company had previously announced in February 2026 that hackers breached its network and deployed ransomware. At that time, it was still determining whether sensitive information was exfiltrated.

The record

What we know

Disclosed
2026-10-10
Attack vector
Ransomware
Sector
Semiconductor equipment
Country
Japan
RANSOMWARE
Sources

Cited reporting

↗ www.securityweek.com
Similar vector · recent

Other ransomware breaches on file

IDCF Cloud · 2026-10-10 Nikkei · 2026-10-09 ASOS · 2026-10-09 Advantest · 2026-10-09 T-Systems · 2026-10-09 T-Systems · 2026-10-08 Nikkei · 2026-10-08 ASOS · 2026-10-08

This page is the permanent ColdRecon entry for the Advantest disclosure. It updates if new public reporting emerges. All tracked breaches →

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