Apple on Tuesday said it too was a target of a cyber attack that was launched against Facebook and other companies last week.
The Cupertino tech company told Reuters that a few of its employees' Mac computers were compromised, but so far "there was no evidence that any data left Apple."
Apple is working with law enforcement to track down the hackers, and the company said it plans to release a software tool Tuesday to protect customers from the same type of malware that affected its employees.
Facebook first acknowledged the hack last week, when it announced that some of its employees' computers had been breached. Facebook said no user data had been compromised, but that many other companies had been targeted by the same attack.