This spring, a group of computer scientists set out to determine whether hackers were interfering with the Trump campaign. They found something they weren’t expecting. ...snip In late July, one of these scientists—who asked to be referred to as Tea Leaves, a pseudonym that would protect his relationship with the networks and banks that employ him to sift their data—found what looked like malware emanating from Russia. The destination domain had Trump in its name, which of course attracted Tea Leaves’ attention. But his discovery of the data was pure happenstance—a surprising needle in a large haystack of DNS lookups...