Following a major attack on the iTunes App Store, Apple is removing dozens of popular apps that had been infected by malware.
The malicious apps were capable of duping customers into giving up their iCloud passwords and opening dangerous websites.
CNN reports that the first sign of trouble appeared over the weekend, after security researchers from Palo Alto Networks discovered that 39 iPhone and iPad apps were infected with malware.
Among the infected apps was WeChat, the super-popular Chinese mobile messaging app used by 600 million people.
All of the affected apps were developed in China, and they all used a modified version of Apple's software development kit, known as Xcode, which had been manipulated by hackers.
Apple's Xcode provides the tools developers need to build iOS apps.
"We've removed the apps from the App Store that we know have been created with this counterfeit software," Apple said in a statement. "We are working with the developers to make sure they're using the proper version of Xcode to rebuild their apps."