Microsoft has confirmed that some Windows 10 source code has leaked. 32TB of internal builds as well as large sections of source code were uploaded to betaarchive.com. While, scale of leak is not known. Microsoft says that the files in question are a portion of source code used by OEMs and partners.
The files leaked on Beta Archive are part of Microsoft’s Shared Source Kit, and it’s not clear that the leak is quite as big a deal as first thought or as some reports are making out.
The leaked code includes the source to the base Windows 10 hardware drivers plus Redmond’s PnP code, its USB and Wi-Fi stacks, its storage drivers, and ARM-specific OneCore kernel code.
Furthermore, there are several released builds for Windows 10, included testing, troubleshooting and debugging tools used by Microsoft internally. Also, there’s a Windows 10 Mobile Adaptation Kit, which looks like an unannounced toolset designed for Windows 10 to run on mobile devices.
This means that anyone who has downloaded the data and knew how to take advantage of it can exploit for security vulnerabilities and carry large-scale cyber attacks, like WannaCry ransomware attack
Microsoft commented on issue stating that, these files are actually a portion of source code from Shared Source Initiative and is used by OEMs and partners.
Beta Archive’s administrator Andy posted an update stating that Shared Source Kit was indeed leaked on their site now which has been removed.
Andy said, the “Shared Source Kit” folder did exist on the FTP until this article came to light. We removed it from our FTP and listings pending further review just in case we missed something in our initial release. Currently, we have no plans to restore until a full review of contents is carried out and it is deemed acceptable under our rules.