How do leakers leak old Windows builds?
I am seeing a ton of Windows beta builds that are leaked into public so it landed on Winworld, BetaArchive, and every other beta leak sites. According to BetaWiki, old Windows builds are getting leaked continuously, and has no end, because there are leakers still leaking Windows beta builds. I'm referring to Windows 2000 or lower beta builds. One of the Windows 2000 builds that are leaked recently is Windows 2000 build 1627.1.
How do leakers leak old Windows beta builds? And where can I possibly get started?