A large U.S. health insurer, CareFirst BlueCross BlueShield, has disclosed it fell victim to a cyberattack that affected about 1.1 million people.
The attack, which occurred in June last year, targeted a single database that contained information about CareFirst members and others who accessed its websites and services, the company said Monday.
The nonprofit has 3.4 million members, mostly around Maryland, Washington, D.C., and Northern Virginia.
“We were the subject of a cyberattack,” a somber looking Chet Burrell, the company’s CEO, says in a video posted to its website.
