Premera Blue Cross says data breach could affect 11M people

Premera Blue Cross, a health insurer based in the Pacific Northwest, said Tuesday that it was the victim of a cyberattack that could affect 11 million people. The company said hackers gained access to its systems on May 5 and that it did not discover the breach until Jan. 29. The breach could have exposed members' names, dates of birth, Social Security numbers, mailing and email addresses, phone numbers, member ID numbers and bank account information, the Mountlake Terrace, Washington, company said. The information dates as far back as 2002 and affects users of Premera Blue Cross, Premera Blue Cross Blue Shield of Alaska, and Vivacity and Connection Insurance Solutions.