The Bangladesh Bank hack is making news again. For some time, conventional wisdom has had it that North Korea was behind the heist, maybe with some help from Chinese individuals. According to experts, some attributes of the hack bore resemblance to the earlier Sony hack, which was tied to the North Korean state pretty clearly. Now, unnamed individuals in the U.S. government have confirmed that they are building a case against the hackers, and in particular the Chinese collaborators. (Though the FBI has declined to comment.)