Where does the Tokyo Electron U.S. Holdings, Inc. case file come from?

Every entry is taken from the breach report Tokyo Electron U.S. Holdings, Inc. lodged with the Maryland Attorney General. Nothing here is estimated.

Why do the incident date and the report date differ?

Companies usually investigate before they report. The gap between the two dates shows how long that took.

What does the records-affected figure count?

It is the number the company gave the state. It can cover residents of that state only, so the national total may be higher.

Does this case file change over time?

Yes. When a company files an update or a new state publishes its copy of the report, the dates and counts here are refreshed.

Case file

Case File: Tokyo Electron U.S. Holdings, Inc. Data Breach

This file collects the dated facts on record for the Tokyo Electron U.S. Holdings, Inc. incident. The state report is dated March 20, 2025.

Timeline

March 20, 2025Report filed in MarylandDate the notice was lodged with the Maryland Attorney General.

Case facts

Filing state: Maryland
Date reported: March 20, 2025
Receiving office: Maryland Attorney General

Case notes

Tokyo Electron U.S. Holdings, Inc., a prominent technology company specializing in semiconductor production equipment, has filed a data security breach report with the Maryland Attorney General. The filing, dated March 20, 2025, confirms that the company is currently investigating an incident where unauthorized parties potentially gained access to its internal systems.

This incident may involve personal information collected and maintained by the company for its employees, contractors, and business partners. While the specific types of data exposed are not detailed in the public record, such information typically includes details relevant to payroll, identification, and professional contact.

If you have received a data breach notification letter from Tokyo Electron U.S. Holdings, Inc., it signifies that your personal information was likely involved in this event. The letter should provide details about the incident and any identity monitoring or protective services being offered by the company.

It is advisable to remain vigilant following a data security incident. This includes carefully reviewing account statements, credit reports, and other financial documents for any suspicious activity. Consider placing a fraud alert or a credit freeze on your credit files to help prevent unauthorized access to your credit. Be cautious of unsolicited communications that claim to be from the company, as these could be phishing attempts.

Questions about this case file

Where does the Tokyo Electron U.S. Holdings, Inc. case file come from?: Every entry is taken from the breach report Tokyo Electron U.S. Holdings, Inc. lodged with the Maryland Attorney General. Nothing here is estimated.
Why do the incident date and the report date differ?: Companies usually investigate before they report. The gap between the two dates shows how long that took.
What does the records-affected figure count?: It is the number the company gave the state. It can cover residents of that state only, so the national total may be higher.
Does this case file change over time?: Yes. When a company files an update or a new state publishes its copy of the report, the dates and counts here are refreshed.

Maryland data breaches

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Timeline

Case facts

Case notes

Questions about this case file

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