Where does the Putnam Radiation Oncology case file come from?

Every entry is taken from the breach report Putnam Radiation Oncology lodged with the Illinois 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: Putnam Radiation Oncology Data Breach

This file collects the dated facts on record for the Putnam Radiation Oncology incident. The state report is dated June 13, 2025.

Timeline

June 13, 2025Report filed in IllinoisDate the notice was lodged with the Illinois Attorney General.

Case facts

Filing state: Illinois
Date reported: June 13, 2025
Receiving office: Illinois Attorney General

Case notes

Putnam Radiation Oncology, a healthcare provider based in Illinois, officially filed a data breach notification with the state's Attorney General on June 13, 2025. The filing indicates a cybersecurity incident occurred, affecting unspecified personal information. This public disclosure serves to inform individuals potentially impacted by the event.

While the specifics of the data types exposed in this incident remain unconfirmed in public filings, healthcare providers like Putnam Radiation Oncology typically manage a wide array of sensitive patient information. This may include various forms of personal identifiers and health-related records necessary for patient care. The extent and nature of the compromised information are currently under investigation.

The incident is currently under investigation, suggesting that Putnam Radiation Oncology is actively working to understand the full scope of the breach and its implications. Data breaches in the healthcare sector often involve unauthorized access to systems containing deeply personal and confidential patient records.

Individuals who receive a direct notification from Putnam Radiation Oncology regarding this incident should carefully review the document for specific details about the types of information involved and the protective measures recommended. It is advisable to remain vigilant for any unusual activity across personal accounts.

As general protective measures, consider routinely monitoring your financial statements and credit reports for any suspicious activity. Implementing strong, unique passwords for online accounts and enabling multi-factor authentication where available can also enhance security. Be cautious of unsolicited communications that request personal details.

Questions about this case file

Where does the Putnam Radiation Oncology case file come from?: Every entry is taken from the breach report Putnam Radiation Oncology lodged with the Illinois 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.

Illinois data breaches

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Timeline

Case facts

Case notes

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