Where does the Ernst & Young LLP case file come from?

Every entry is taken from the breach report Ernst & Young LLP lodged with the Indiana 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: Ernst & Young LLP Data Breach

This file collects the dated facts on record for the Ernst & Young LLP incident. The state report is dated July 14, 2026. The incident itself is dated March 28, 2026.

Timeline

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

March 28, 2026Incident dateWhen the filing says the breach took place.
July 14, 2026Report filed in IndianaDate the notice was lodged with the Indiana Attorney General.

Case facts

Filing state: Indiana
Date reported: July 14, 2026
Incident date: March 28, 2026
Receiving office: Indiana Attorney General

Case notes

Ernst & Young LLP has confirmed a data incident that may have exposed personal information. The company identified or experienced this security event on March 28, 2026. Following an investigation, Ernst & Young LLP formally reported this incident to regulatory authorities on July 14, 2026.

The public filing from Indiana indicates that the specific nature of the breach and the exact categories of personal information involved were not detailed. The report describes an unspecified security incident that led to the exposure of certain data.

Individuals who may be affected by this incident are advised to exercise caution and remain vigilant. Ernst & Young LLP has stated that its internal investigation and response efforts are currently in a monitoring status.

To help safeguard against potential misuse of your personal information, it is recommended to routinely review statements from your financial institutions and monitor your credit reports for any uncharacteristic or suspicious activity. Promptly report any unauthorized transactions or accounts to the relevant institutions.

As a further general protective measure, consider placing a fraud alert on your credit files. This can make it more difficult for unauthorized parties to open new lines of credit or accounts in your name. For greater protection, a security freeze can also be initiated. These are widely recommended steps following any data security incident.

This documentation is based on factual information derived from public regulatory filings made in Indiana, ensuring that the details presented are verifiable and accurate.

Questions about this case file

Where does the Ernst & Young LLP case file come from?: Every entry is taken from the breach report Ernst & Young LLP lodged with the Indiana 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.

Indiana data breaches

Filing source: Indiana Attorney General

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Timeline

Case facts

Case notes

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