Terabytes of TestFlight game betas from 2012 to 2015 leaked, and it's not clear how

Apple TestFlight

Named the "Teraleak" due to its size, the giant data cache has been posted online via X, formerly Twitter, as well as other social avenues, with the cache hosted by the Internet Archive.

The leak consists of a massive amount of data from TestFlight, Apple's app-testing service to allow the limited distribution of apps and games for developmental testing or beta purposes. The archive largely consists of thousands of iOS games and apps, chiefly prototypes and beta builds, used on the service between 2012 and 2015.

According to Eurogamer, it also includes unreleased titles in its collection, including several "Angry Birds" games that didn't make it to the App Store. There also appears to be apps that were previously released on the App Store, but then delisted, such as "Infinity Blade."

It is unclear exactly where the data leak came from, with the main source of information about it stemming from a single anonymous @Teraleak handle. There's no word on how the data exited Apple's servers at the time of publication.

There are also questions about the type of data included in the trove, such as if any sensitive information is included in it. However, the age of the archives may limit the usefulness of any such data.

While the prospect of downloading unreleased games could be appealing to internet archivists, there are potential legal implications. There are also issues relating to intellectual property among other thorny problems associated with leaks in general.

Apple, as well as developers affected by the leak, have yet to comment.