FBI agents combating international cybercrime are currently battling hackers on two new fronts — from a remote corner of China to the virtual battlefields of “Call of Duty” emanating from the family playroom.

On the international stage, FBI cybersleuths have informed U.S. businesses that millions of dollars have been fraudulently wired from business accounts in U.S. banks to banks in a remote coastal region of China near the Russian border.