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Case File: Northwest Radiologists and Mt. Baker Imaging Data Breach

This file collects the dated facts on record for the Northwest Radiologists and Mt. Baker Imaging incident. The state report is dated October 29, 2025. The incident itself is dated January 20, 2025.

Timeline

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

  1. January 20, 2025Incident dateWhen the filing says the breach took place.
  2. October 29, 2025Report filed in CaliforniaDate the notice was lodged with the California Attorney General.

Case facts

Filing state
California
Date reported
October 29, 2025
Incident date
January 20, 2025
Receiving office
California Attorney General

Case notes

Northwest Radiologists and Mt. Baker Imaging, entities operating in California, have formally reported a data security incident. Public records indicate this event, which led to the exposure of personal information, occurred on January 20, 2025. The official notification regarding this breach was filed on October 29, 2025, according to regulatory disclosures.

At the time of the filing, the investigation into the incident was still underway. The exact types of personal information involved in this event have not been specified in the publicly available records. Similarly, the number of individuals potentially affected by this breach was not disclosed in the filing.

When a data breach involves personal information, it typically means data that can be used to identify an individual has been compromised. Although specific details about the data types are not provided, individuals who have been patients or clients of Northwest Radiologists or Mt. Baker Imaging should remain attentive to any official communications from these organizations.

It is a standard recommendation to be cautious of unexpected communications, especially those asking for personal details. Regularly review statements from your financial institutions for any unusual activity. Consider implementing strong, unique passwords for online accounts and enabling multi-factor authentication where available.

Remaining informed about the security of your personal information is a proactive step. If you receive a direct notification letter, carefully read it for any specific instructions or resources provided by Northwest Radiologists or Mt. Baker Imaging.

Questions about this case file

Where does the Northwest Radiologists and Mt. Baker Imaging case file come from?
Every entry is taken from the breach report Northwest Radiologists and Mt. Baker Imaging 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