Update 9/25/20 12:20pm PT: We have added more details to the text below about new information that has surfaced, including that multiple operating systems are impacted and that conspiracy theory material is also embedded in the torrented copies of the leak.

Update #2: A Microsoft representative has now responded to our request for comment, merely stating: “We are investigating the matter.”

Original Article:

Reports have emerged today that the Windows XP source code has been leaked to 4chan, with the leaked code then being posted to a torrent and the Mega file sharing service. Reports have also emerged that independent researchers have since begun analyzing the data, with initial indications that the leak is legitimate. However, there hasn't been an official confirmation from Microsoft as to whether or not the leak contains valid code.

The 42.9 GB leak also reportedly has newly-leaked code for Windows XP, Windows Server 2003, and Windows 2000 mixed in with other various source code from previous leaks. It still remains to be seen if the leak includes the entire source code for Windows XP, or just a subset.