Security News > 2021 > May > XcodeGhost Malware Discovered in 2015 Impacted 128 Million iOS Users
Documents submitted in a court case involving Apple revealed that the XcodeGhost malware discovered in 2015 impacted 128 million iOS users.
The published emails show exchanges between Apple employees, including executives, discussing the XcodeGhost incident and the steps the company should take in response.
XcodeGhost is a piece of malware designed to inject malicious code into iOS and OS X applications through rogue versions of Xcode, Apple's integrated development platform for creating iOS and macOS software.
The emails sent internally by Apple following the incident reveal that Apple had identified more than 2,500 malicious apps that had been downloaded 203 million times from the App Store.
While more than half of the affected users were in China, Apple had identified 18 million customers in the United States that had also been impacted.
UPDATE: Apple said it kept its users informed about the issue and provided them with information on the steps they could take, but did not say whether it directly notified them.