“Night Dragon” hackers stole gigabytes of data from Western energy companies, McAfee says. McAfee: “They were incredibly sloppy, made mistakes and left lots of evidence” The attacks targeted at least five Western oil, gas and petrochemical companies, some clients of McAfee. No evidence that the hackers were trying to hijack or damage the energy corporations’ physical facilities. “There’s a preponderance of evidence that this came from China,” McAfee’s Dmitri Alperovitch says.”]