There is a player adding other players from Graal on Skype attempting to send them exe files telling them different stories (anything really) for them to accept and run the file. Do not fall for this!!
He has already hijacked a few players Skypes and Graal accounts by successfully pulling this trick off, so be careful if your contacts start acting weird or trying to send you things, it could be this guy.
If this happens to you, do not hesitate to contact the authorities! This is illegal and they can get in trouble for doing this.