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MonitoringCA AG filing · October 5, 2026

Advantest America Reports Data Breach to California Regulators

Advantest America, Inc. filed notice in California regarding a data breach that occurred in January 2026. The incident potentially exposed sensitive personal and financial data for affected individuals. This filing serves as a public record for those seeking to verify their notification.

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. submitted a data breach notification to California authorities on October 5, 2026. The company reported an incident that initially took place on January 23, 2026, though the specific nature of the breach remains unspecified in public records.

According to the official filing, the exposed information includes individuals' 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.

Such exposure can lead to various risks, including identity theft, financial fraud, or unauthorized access to personal accounts. Individuals whose Social Security Numbers or Direct Deposit Account Details are compromised face a heightened risk of targeted phishing or financial manipulation.

Individuals who receive notice of this breach should consider monitoring their credit reports for suspicious activity and reviewing bank and financial statements regularly. Activating fraud alerts or credit freezes with major credit bureaus can add an extra layer of protection against unauthorized account openings or financial transactions.

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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