I'm confused... Wasn't all that published in 2015 already? Edit: ah it says it right there on this article: The full version of this paper was published in Pro

I'm confused... Wasn't all that published in 2015 already? Edit: ah it says it right there on this article: The full version of this paper was published in Proceedings of the 22nd Conference on Computer and Communications Security (CCS), October 2015, ACM Mods, maybe add a "2015" to the title?