Cybersecurity Notice of Data Breach

September 9, 2026

Important Notice Regarding McKesson Data Security Incident

Affiliated Oncologists has been informed of a cybersecurity incident involving McKesson, a third-party vendor that provides services to healthcare organizations nationwide. According to McKesson, unauthorized access to certain data may have occurred between August 20 and August 25, 2026. McKesson's investigation is ongoing, and some patient information may have been impacted. [mckesson.com]

Patients seeking additional information are encouraged to review McKesson's official Notice of Data Breach:

View McKesson's Notice of Data Breach [mckesson.com]

McKesson has established a dedicated call center for individuals who believe they may have been affected:

Phone: 1-855-760-5202
Hours: Monday through Friday, 9:00 a.m. to 9:00 p.m. ET [mckesson.com]

We understand the importance of protecting personal information and will continue to monitor updates provided by McKesson. We encourage patients to review the resources available through McKesson, including complimentary credit monitoring and identity protection services if eligible.