According to foreign media reports, the source code of Microsoft's Xbox game console has been leaked on the Internet, as well as the Windows NT 3.5 code. Xbox's source code includes the operating system kernel of the original game console, which is a customized version of Windows 2000. We can confirm that the Xbox operating system leaked online earlier this month is true.

A Microsoft spokesman told The Verge in a statement:

While Xbox OS leaks include some build environments, Xbox development suites, simulators for testing, and internal documentation, we understand that the kernel and source code have been circulating privately among enthusiasts. This means it is unlikely to help further develop Xbox home-made systems and Xbox game simulators.

While the Xbox leaks, Windows NT 3.5 near the final version of the source code also appeared online. The source code includes all the necessary building tools that should allow enthusiasts to dig into the old operating system. Because Windows NT 3.5 support ended in December 2001, the operating system was used only in a few systems worldwide, source code leaks were not a major security issue.

Over the years, Microsoft has largely protected its proprietary windows and Xbox source code.

As early as 2004, part of the source code of Windows 2000 and NT 4 has been leaked. Even in 2017, part of the source code of windows 10 has also been published on the Internet. We asked Microsoft to comment on the Windows NT 3.5 source code leak, but the company said it had nothing to share about this particular incident.