Excellus BlueCross BlueShield (BCBS), a non-profit health insurer based in Rochester, New York, revealed on Thursday that malicious actors had access to its IT systems for more than a year and a half.
The attackers gained access to the details of members, patients and other individuals Excellus does business with. According to the organization, the breach also impacts members of other Blue Cross Blue Shield plans who sought treatment in the 31 county upstate New York service area of Excellus BCBS. It is estimated that roughly 10 million individuals are affected.
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