Windows 8 hasn't been sold reasonably and now it has already been cracked! KMS Activation is now possible on the pirated copies of Windows 8.1 circulating on illegal file sharing network. KMS tool activates Windows by using a traditional Key Management Service workaround.
It is doubtful if Microsoft can block all these pirated copies of Windows 8.1 but it will definitely harm the company and the future of Windows. Please don't share links to the crack in the comments. This post if for raising awareness only.