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Case File: Hudson River Partners I L.P. d/b/a The Thayer Hotel Data Breach

This file collects the dated facts on record for the Hudson River Partners I L.P. d/b/a The Thayer Hotel incident. The state report is dated November 3, 2025. The incident itself is dated September 19, 2025.

Timeline

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

  1. September 19, 2025Incident dateWhen the filing says the breach took place.
  2. November 3, 2025Report filed in CaliforniaDate the notice was lodged with the California Attorney General.

Case facts

Filing state
California
Date reported
November 3, 2025
Incident date
September 19, 2025
Receiving office
California Attorney General

Case notes

Hudson River Partners I L.P., which operates The Thayer Hotel, has publicly reported a data security incident. This filing, made on November 3, 2025, indicates that an unauthorized event may have compromised personal information.

According to the public record, the breach occurred on or about September 19, 2025. The specific nature of the incident and the categories of personal information involved were not detailed in the filing submitted from California.

Hudson River Partners I L.P. noted that the matter is currently under investigation. Further details are expected to be released as the company continues to assess the full scope and impact of the breach.

Individuals potentially affected by this incident are advised to remain vigilant. Review financial account statements and credit reports for any unusual activity, and be cautious of unsolicited communications that request personal details.

Questions about this case file

Where does the Hudson River Partners I L.P. d/b/a The Thayer Hotel case file come from?
Every entry is taken from the breach report Hudson River Partners I L.P. d/b/a The Thayer Hotel 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.

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Filing source: California Attorney General