Premera Blue Cross , an insurer based in the Pacific Northwest , revealed the breach Tuesday . The company said it discovered a "remote access vulnerability" on its website that allowed hackers to gain unauthorized access to personal information of about 500,000 customers and their medical records.
Premera Blue Cross , an insurer based in the Pacific Northwest , revealed the breach Tuesday . The company admitted the breach could have exposed members ' names , dates of birth , social security numbers , addresses and more . Clinical information including diagnoses and other medical history may also have been exposed .