norm: advantestJPno LEI · no CIKMax severity: Medium

Canonical registry

Advantest

ent_8de1712823b46cc6f20e0caa

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Disclosures

1

State AG · 1 jurisdiction

Multi-filing incidents

1

incidents joining 2+ filings here

Max affected reported

—

no filed count in sample

Leak-site claims

0

none in sample

Identity resolution

Canonical name: Advantest
Normalized: advantest— dedupe via name-norm; Microsoft / MSFT collapse to one row
GLEIF LEI: No match
SEC EDGAR CIK: None — not an SEC registrant
Domain: None on record

Disclosure history (1)newest first

California State AGas victim2026-10-05
Advantest Corporation disclosed a cybersecurity incident where an unauthorized third party accessed systems and extracted data in January 2026. The company became aware of the incident in February 2026. Affected data includes PII such as names, addresses, SSNs, driver's licenses, passports, medical information, and financial information. The incident was contained, and systems were restored. Advantest is offering 18 months of credit monitoring via Kroll.