Where does the Capital One case file come from?

Every entry is taken from the breach report Capital One 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: Capital One Data Breach

This file collects the dated facts on record for the Capital One incident. The state report is dated January 12, 2026. The incident itself is dated December 26, 2025.

Timeline

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

December 26, 2025Incident dateWhen the filing says the breach took place.
January 12, 2026Report filed in IndianaDate the notice was lodged with the Indiana Attorney General.

Case facts

Filing state: Indiana
Date reported: January 12, 2026
Incident date: December 26, 2025
Receiving office: Indiana Attorney General

Case notes

Capital One filed a data breach notification with authorities in Indiana on January 12, 2026. This report concerns a security incident where personal information entrusted to the company may have been accessed without authorization. The specific nature of the breach event and the exact types of data involved were not detailed in the public filing.

The incident is recorded as having occurred on December 26, 2025. Following the discovery, Capital One is reportedly monitoring the situation, as indicated in the breach disclosure. Public records do not specify the number of individuals affected or the precise categories of personal data compromised during this event.

Generally, when personal information is involved in a data breach, it refers to any data that can be used to identify an individual. While the specific data types remain unconfirmed for this incident, it is prudent for anyone notified by Capital One to consider general data security practices.

If you receive a direct notification letter regarding this incident, it is crucial to read it thoroughly for any personalized instructions or offered services. It is always wise to remain vigilant by monitoring your financial accounts for unusual activity and being cautious of unsolicited communications, especially those asking for personal details.

Consider enabling multi-factor authentication on all online accounts where available, as this adds an extra layer of security. This incident serves as a reminder to regularly update passwords and be wary of phishing attempts that might try to exploit news of data breaches.

Questions about this case file

Where does the Capital One case file come from?: Every entry is taken from the breach report Capital One 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

Named in the Capital One breach?

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Timeline

Case facts

Case notes

Questions about this case file

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