A computer software flowchart (Image: Thinkstock)

Intruders used the credentials of some Bankers Life and Casualty Company employees to get into Bankers Life systems from May 30 through Sept. 30, the company announced last week.

The intruders may have obtained unauthorized access to the full Social Security numbers, driver’s license numbers, bank account numbers, or medication, diagnosis or treatment plan information for “a limited group of individuals,” the company said.

(Related: Data Breach Stalls HealthCare.gov’s Direct Enrollment System)

The intruders may also have obtained the personal information of a larger group of Bankers Life applicants and customers, including the consumers’ names, addresses, dates of birth, insurance information, types of insurance, premiums, dates of service and claim amounts, and the last four digits of the consumers’ Social Security numbers, the company said.

The intrusion has affected Bankers Life’s Colonial Penn Medicare supplement insurance customers as well as other customers, the company said.

Forensics investigators hired by Bankers Life do not believe the intruders obtained customers’ credit card or debit card information, Bankers Life said.

Bankers Life is a Chicago-based unit of CNO Financial Group Inc.

Bankers Life reported the incident to federal authorities Aug. 7. The company said it’s revealing the incident  to the public only now because law enforcement officials told the company that disclosure of the incident could interfere with or impede a federal government investigation.

Bankers Life said it will provide identity repair and credit monitoring services free of charge for the applicants and customers affected by the incident.

— Read How to Protect Your Clients and Yourself From Cyberthefton ThinkAdvisor.

— Connect with ThinkAdvisor Life/Health on LinkedIn and Twitter.