This big US health insurer just got hacked

Excellus BlueCross BlueShield announced Wednesday that more than 10 million of its customers' information has been exposed in a massive cyberattack. The breach mainly affects residents of upstate New York, where the health insurance company is based. The cyberattack is one of the 20 largest healthcare breaches ever reported, and it follows a string of other attacks on Blue Cross-affiliated companies nationwide, according to The Hill. Though the insurer didn't notice the breach until August of this year, the actual attack occurred in December 2013.