2.2 Million Cancer Patients at Risk of Identity Theft

The FBI on Nov. 13, 2015 informed 21st Century Oncology Holdings of a data theft, but asked the company to delay disclosing the incident so as not to interfere with a probe.

Private forensics investigators say the attackers might have penetrated the company's database in early October 2015.

The breached system contains personal information on some patients, including their names, social security numbers, physicians, diagnoses and treatment, as well as insurance data, the company said.

Kaspersky Labs reports that, according to the healthcare provider, there is no indication medical records were compromised.

The Fort Myers, Florida-based firm operates 145 cancer treatment centers in the United States and 36 in Latin America.