Malware Attack on Apple Said to Come From Eastern European Gang

At least 40 companies including Apple Inc., Facebook Inc. and Twitter Inc. were targeted in malware attacks linked to an Eastern European gang of hackers that is trying steal company secrets, two people familiar with the matter said.

Apple, one of three victims to publicly disclose attacks this month, said some of its internal Mac systems were affected by a malware attack. The hackers used an iPhone-developer website, according to the people familiar with law enforcement efforts, including investigations by the FBI and Secret Service, and didn’t want to be identified because of the probe.