Where does the State Street case file come from?

Every entry is taken from the breach report State Street lodged with the Massachusetts 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: State Street Data Breach

This file collects the dated facts on record for the State Street incident. The state report is dated August 18, 2025.

Timeline

August 18, 2025Report filed in MassachusettsDate the notice was lodged with the Massachusetts Attorney General.

Case facts

Filing state: Massachusetts
Date reported: August 18, 2025
Receiving office: Massachusetts Attorney General

Case notes

State Street, a globally recognized financial services holding company, formally reported a data security incident to the Massachusetts Attorney General's office on August 18, 2025. The company indicated that an investigation into the scope and impact of the incident is ongoing.

As a prominent institution at the core of the international financial system, State Street routinely manages vast repositories of information. While the specific types of data exposed in this particular incident have not been detailed in public filings, it is generally understood that financial service providers process significant amounts of personal and sensitive client data.

The exposure of any personal information can carry risks, potentially leading to unauthorized access to accounts or identity-related concerns. Without specific details on the compromised data, individuals should be aware that their information could be targeted.

Individuals who receive an official notification from State Street regarding this incident should review it carefully for any specific guidance provided. General protective measures include regularly monitoring financial statements and credit reports for unusual activity. It is also wise to update passwords for online accounts and enable multi-factor authentication wherever possible.

Remaining vigilant against unsolicited communications, especially those requesting personal or financial details, is also an important step. Given that the specific data elements involved in this breach remain under investigation, adopting comprehensive personal information security practices is advisable.

Questions about this case file

Where does the State Street case file come from?: Every entry is taken from the breach report State Street lodged with the Massachusetts 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.

Massachusetts data breaches

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Timeline

Case facts

Case notes

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