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: SMC Corporation of America/ Advanced Pressure Technology (APTech) Data Breach

This file collects the dated facts on record for the SMC Corporation of America/ Advanced Pressure Technology (APTech) incident. The state report is dated March 10, 2025. The incident itself is dated December 3, 2024.

Timeline

97 days separate the incident date from the date it was reported.

December 3, 2024Incident dateWhen the filing says the breach took place.
March 10, 2025Report filed in CaliforniaDate the notice was lodged with the California Attorney General.

Case facts

Filing state: California
Date reported: March 10, 2025
Incident date: December 3, 2024
Receiving office: California Attorney General

Case notes

SMC Corporation of America and Advanced Pressure Technology (APTech), an industrial manufacturing and engineering firm based in California, officially reported a data security incident. The company identified unauthorized access to its internal systems, an event which was first detected on December 3, 2024. The breach was formally reported to regulatory authorities on March 10, 2025.

The incident involved unauthorized parties potentially accessing internal systems where various personal information is maintained. The specific categories of data involved in this breach were not detailed in the public filing, thus it is referenced generally as 'personal information' or 'your data'.

SMC Corporation of America has indicated that an investigation into the scope and impact of this incident is ongoing. The company has begun sending notification letters to individuals whose information was stored within the affected environment. If you have received such a letter, it signifies that your personal information was likely among the data accessed.

To help protect yourself, it is advisable to remain vigilant. Review your account statements and credit reports for any suspicious activity. Consider changing passwords for online accounts, especially if similar credentials were used for other services. Additionally, be cautious of unsolicited communications that request personal information, as these could be phishing attempts related to the incident.

This information is based on public filings made by SMC Corporation of America with regulatory bodies. It is intended to inform individuals who may have been affected and to document the details of the reported data security incident as part of the public record.

Questions about this case file

Where does the SMC Corporation of America/ Advanced Pressure Technology (APTech) case file come from?: Every entry is taken from the breach report SMC Corporation of America/ Advanced Pressure Technology (APTech) lodged with the California 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.

California data breaches

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Timeline

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