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MonitoringCA AG filing · October 5, 2026

Advantest America, Inc. Reports 2026 Data Incident to California Regulators

Advantest America, Inc. filed notice of a security incident with the California Attorney General, affecting personal data reported to include Full Name, Social Security Number, Date of Birth, Mailing Address, Wage and Compensation Information, Tax Return Information, Direct Deposit Account Details, and Employee ID Number. This exposure creates risks for individuals whose sensitive information was stored within the company's systems.

State
CA
Breach date
January 23, 2026
Reported
October 5, 2026

What may have been exposed

  • Full Name
  • Social Security Number
  • Date of Birth
  • Mailing Address
  • Wage and Compensation Information
  • Tax Return Information
  • Direct Deposit Account Details
  • Employee ID Number

Advantest America, Inc., a technology company operating in California, reported a data security incident to state regulators. The breach date was January 23, 2026, with the official filing occurring on October 5, 2026. Details of the incident were submitted to the California Attorney General's office for public record.

The information reported exposed in this filing includes Full Name, Social Security Number, Date of Birth, Mailing Address, Wage and Compensation Information, Tax Return Information, Direct Deposit Account Details, and Employee ID Number. These categories of sensitive personal data were stored within Advantest America's systems.

The exposure of such detailed personal and financial identifiers carries significant risks for affected individuals. Compromised Social Security Numbers and Dates of Birth, for instance, are foundational elements often exploited for identity theft, fraudulent account openings, and unauthorized tax filings. The inclusion of wage, tax, and direct deposit information further elevates the potential for financial fraud and targeted scams.

Individuals potentially affected by this incident are advised to remain vigilant regarding their personal and financial records. General protective measures include regularly reviewing credit reports from major bureaus, monitoring financial statements for suspicious activity, and considering placing a fraud alert or credit freeze on their accounts. It is also wise to be cautious of unsolicited communications that request personal information.

This documentation is based on public disclosures made by Advantest America, Inc. to regulatory bodies. No specific number of affected individuals was reported in the available filing details. The investigation status was noted as "monitoring" at the time of the filing.

What to do if you were affected

Based on the categories of information reported in this filing, these steps can help limit the risk of identity theft and fraud.

  • Freeze your credit

    Place a free credit freeze with Equifax, Experian, and TransUnion. A freeze blocks new accounts from being opened in your name and can be lifted anytime.

  • Guard against tax fraud

    File your tax return as early as possible and consider requesting an IRS Identity Protection PIN so no one can file a fraudulent return in your name.

  • Watch your financial accounts

    Review bank and card statements for unfamiliar activity and turn on transaction alerts. Report anything you don't recognize to your bank right away.

  • Stay alert to targeted scams

    Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.

  • Keep your notification letter

    Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.

Source: CA Attorney General filing

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