The same malware originating from China that recently targeted a small U.S. defense contractor matches the software used in the massive attack on health insurer Anthem, a leading cyber security firm told the Washington Post on Friday.
"The malware is so unique—the digital signature is so precise—in these two incidents that we strongly feel the same Chinese actors were involved,"said Rich Barger, chief intelligence officer of ThreatConnect, which is located in Washington's northern Virginia suburbs.
The company's report comes as FBI officials say they are close to determining who was behind last month's Anthem intrusion, which resulted in the exposure of an estimated 80 million Social Security numbers and other personal data. The Post reports the FBI also believes China was behind the attack.
"We're very close already but we're not going to say it until we're absolutely sure," Robert Anderson Jr., executive assistant director of the FBI's Criminal, Cyber, Response and Services Branch, said this week at a reporters' roundtable. The FBI "may or may not" make its conclusion public.