A few days to several users came of the calls for a misterious beta Halo 4, but the same 343 Industires stated that they are all false and that no beta is planned at the moment, although obviously not excluded the possibility that this happens in the future. After recent thefts the of Xbox Live account from hackers, it is legitimate to expect that this is just another attempt to gain access to our personal data, so if you receive ambiguous or invitations that emal require personal information, don't respond.