While it hasn’t released many details about the incident, Apple has confirmed that it has removed all of developer Thuat Nguyen’s apps from the App Store. Approximately 400 users complained that their iTunes accounts had been fraudulently used to buy his Nguyen’s apps. That activity helped push his apps to the top of the list of most popular apps.
Apple says that its iTunes servers have not been hacked, but it is adding new security precautions to prevent a repeat incident.