Onsite Mammography

Onsite Mammography, LLC notified South Carolina consumers of a security incident discovered in October 2024 involving unauthorized access to an employee's email account. The incident exposed patient names and protected health information (PHI). The company engaged forensic experts and offered credit monitoring services.

Onsite Mammography reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-04-21. 89 Massachusetts residents were affected.

Onsite Mammography, LLC notified consumers of a data security incident discovered in October 2024 involving unauthorized access to an employee's email account. The incident exposed patients' names and specific health-related information (PHI). The company engaged independent cybersecurity experts and a data analytics vendor to investigate and assess the scope.

Onsite Mammography reported to HHS on 2025-04-21 a Hacking/IT Incident affecting 357265 individuals. Breached information located on Email. Business Associate present: Yes.

Onsite Mammography reported a data breach to the Indiana Attorney General. The breach occurred on 2024-10-02 and was reported on 2025-04-21. 6,529 Indiana residents were affected. 357,265 individuals affected in total.

Onsite Mammography, LLC notified the Nebraska Attorney General of a security incident discovered on October 4, 2024, involving unauthorized access to an employee's email account. The incident affected approximately 36 Nebraska residents, exposing names, dates of birth, Social Security numbers, and protected health information (PHI). Onsite engaged cybersecurity experts and law enforcement, reset passwords, and provided 12-24 months of credit monitoring to affected individuals.

Onsite Mammography, LLC notified the NH Attorney General that an unauthorized actor accessed an employee's email account on October 4, 2024. The incident was discovered on the same day. A subsequent investigation determined that personal information and protected health information (PHI) of approximately 39 New Hampshire residents may have been accessed. The company engaged cybersecurity experts, reset passwords, and offered credit monitoring services.

Onsite Mammography, LLC reported a data breach affecting 357,265 individuals, including 32 Maine residents. An unauthorized actor accessed an employee's email account in October 2024 via phishing, exposing patient names and health-related information. The company engaged forensic experts, implemented security enhancements, and offered 12 months of credit monitoring.

ONSITE MAMMOGRAPHY filed a data-breach notice with the Illinois Attorney General in April 2025 (case 25-04-117). The register records the breach as discovered on April 15, 2025. Personal information types reported: drivers license, medical information, ssn. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.