This applies to the Halo 4 Specialisation Alpha DLC.
Codes were sent out giving players who played before a certain date after Halo 4's release access to all the Specialisations, but it's been discovered that you can download a friend's profile and make use of your permissions to give them access to the Specialisations. After entering one, they can play until they finish it, in which case you can then access their profile and enter another Specialisation.
This bypasses not having being given a code yourself, however 1) not everyone who was supposed to have received a code did and 2) this DLC was not paid for and 3) this isn't hacking or modding and doesn't seem to be or have cause to be punishable.
Is this permitted and what is Microsoft's official stance on this? Also, does 343 Industries' stance differ, and what is theirs?