Chinese traders hacked into the computer systems of U.S. law firms that handle mergers, then used the data for insider trading that generated more than $4 million in illegal profits , federal prosecutors and regulators charged Tuesday. From a report on USA Today: The suspects in the alleged criminal marriage of cyber-hacking and securities fraud targeted at least seven law firms and other entities that handle the sensitive and often lucrative legal work of advising companies pursuing mergers and acquisitions, according to a 13-count superseding indictment unsealed in New York.