Where does the Interactive Brokers LLC case file come from?

Every entry is taken from the breach report Interactive Brokers LLC 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.

Case file

Case File: Interactive Brokers LLC Data Breach

This file collects the dated facts on record for the Interactive Brokers LLC incident. The state report is dated May 22, 2025. The incident itself is dated April 14, 2025.

Timeline

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

April 14, 2025Incident dateWhen the filing says the breach took place.
May 22, 2025Report filed in CaliforniaDate the notice was lodged with the California Attorney General.

Case facts

Filing state: California
Date reported: May 22, 2025
Incident date: April 14, 2025
Receiving office: California Attorney General

Case notes

On May 22, 2025, Interactive Brokers LLC, a financial services company based in California, reported a data security incident to authorities. This filing indicates that an unauthorized event impacted their systems on April 14, 2025.

The specific details of how the breach occurred and the exact scope of the incident are currently under investigation. Public records do not specify the precise types of personal information that may have been involved, nor do they indicate the number of individuals affected by this event.

Interactive Brokers LLC is actively investigating the incident to understand its full extent and implement necessary remediation. This ongoing investigation is aimed at securing their systems and determining what information, if any, was accessed or compromised.

Even without knowing the exact categories of data involved, it is prudent for anyone who has been a client of Interactive Brokers LLC to remain vigilant. General precautions are always recommended after a data security incident, especially when personal information may be at risk.

To safeguard against potential misuse of your data, consider placing a fraud alert or credit freeze with major credit bureaus. Regularly review account statements for any unusual activity and be cautious of unsolicited communications, particularly those asking for personal details or financial information. Update your passwords for online accounts, ensuring they are strong and unique.

Questions about this case file

Where does the Interactive Brokers LLC case file come from?: Every entry is taken from the breach report Interactive Brokers LLC 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

Filing source: California Attorney General

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Timeline

Case facts

Case notes

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