Investigators from the California Department of Insurance believe a foreign government might perpetrated a 2015 cyberattack on health insurer Anthem that affected approximately 78 million individuals, according to the Tri-City Herald.
In a report from California Insurance Commissioner Dave Jones, cybersecurity firm CrowdStrike said it had identified the Anthem hackers with "high confidence" and deduced with "medium confidence" that they were working for a foreign government.
"We do not have information as to the motive of those that were behind this cyberattack, but the volume of information and the kind of information taken is very troubling," Commissioner Jones said, according to the Tri-City Herald.
Due to a continuing investigation, U.S. law enforcement officials requested Commissioner Jones refrain from identifying the foreign government, according to Madison Voss, a spokesperson for the state's insurance department.