Did Advantest America, Inc. have a data breach?

Answer

Yes. Advantest America, Inc. reported a data breach to the CA Attorney General on October 5, 2026.

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What the filing says

Reported to: CA Attorney General
Filing date: October 5, 2026
Breach date: January 23, 2026
People affected: Not stated in the filing

Information involved

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

In plain terms

Advantest America, Inc. filed a data breach report in California on October 5, 2026, regarding an incident from January 23, 2026. The breach exposed various sensitive employee data categories. Individuals potentially affected should be aware of the risks to their personal information.

Advantest America, Inc. officially reported a data breach to California authorities on October 5, 2026. The incident, which occurred on January 23, 2026, involved the compromise of personal information managed by the company.

According to the filing, the exposed data types 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 comprehensive set of personal identifiers and financial details presents significant concerns for affected individuals.

The exposure of such sensitive personal and financial data can lead to various risks, including identity theft, fraudulent financial transactions, and unauthorized use of personal information. Specifically, compromised Social Security Numbers and direct deposit details can be exploited for financial fraud or to gain access to other accounts.

Individuals who believe they may be affected by this Advantest America data breach should take proactive steps. It is recommended to regularly monitor financial accounts, credit reports, and explanations of benefits for any unusual activity. Placing a fraud alert or a security freeze on credit files with the major credit bureaus is also a strong precautionary measure. Additionally, reviewing tax filings and employment records for accuracy can help detect misuse of information.

If you received a notification letter about this breach, you can compare it with other CA data breach filings or browse all cases.

Other filings by Advantest America, Inc.

Companies often file the same breach in several states. Each filing is listed separately.

Advantest America, Inc.Yes — reportedVT · October 5, 2026

Commonly recommended next steps

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.