Michael A Riley and John Walcott report:
The disclosure by U.S. officials that Chinese hackers stole records of as many as 4 million government workers is now being linked to the thefts of personal information from health-care companies.
Forensic evidence indicates that the group of hackers responsible for the U.S. government breach announced Thursday likely carried out attacks on health-insurance providers Anthem Inc. and Premera Blue Cross that were reported earlier this year, said John Hultquist of iSight Partners Inc., a cyber-intelligence company that works with federal investigators.
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