Understanding your Onsite Mammography data breach notification letter
If a Onsite Mammography letter arrived in your mailbox, here is what it means, why you received it, and the free steps you can take right now.
Why you received this letter
Onsite Mammography operates as a specialized healthcare provider, offering diagnostic imaging services directly to patients and corporate clients. Given the nature of their medical services, the company maintains highly sensitive personal information, including comprehensive health records, diagnostic imaging results, and associated billing details. In 2025, the company officially reported a data security incident to the South Carolina Attorney General, indicating that unauthorized access to their systems may have occurred. If you recently received a data breach notification letter from Onsite Mammography, it confirms that your personal or protected health information was involved in this incident. We recommend reviewing the letter carefully to understand the specific scope of the exposure and the identity monitoring services being offered to you.
What to do after the letter
Confirm the notice is genuine
A legitimate Onsite Mammography notice references the specific incident reported to the South Carolina Attorney General and describes which categories of your information were involved. Compare the letter against the public filing before acting on any links or phone numbers it contains.
Keep the letter — it is your proof of connection
The notification letter is the document that ties your personal information to this incident. Keep the original and photograph it. If you later request a case review, this letter is the strongest evidence that you were among the affected individuals.
Protect your accounts and credit
Depending on what was exposed, consider a free credit freeze with all three bureaus, new passwords for reused credentials, and monitoring of financial statements. These steps are free and do not require you to wait for anyone's permission.
Check the record against the public filing
You can verify the Onsite Mammography incident against the filing reported to the South Carolina Attorney General. This registry summarizes what was filed; it does not provide legal advice.
This page summarizes a data breach reported to the South Carolina Attorney General for informational purposes. DataBreachInformation.com is a neutral reference registry and does not provide legal advice.