Authorities arrest 10 suspected botnet data thieves

International authorities, with some help from Facebook, have arrested 10 people accused of operating a network of infected computers that stole personal information from millions of victims.

The Justice Department said Tuesday night that the F.B.I. and international agencies were helped in their investigations by Facebook, whose users were among those targeted by the malware, or malicious software, over the last several years. The agencies arrested people from Bosnia and Herzegovina, Britain, Croatia, Macedonia, New Zealand, Peru and the United States, the F.B.I. said.