Riot are probably trying to sweep it under the carpet until it's fixed. Makes perfect sense as an information vacuum stops it from spreading to some degree, whereas confirming the existence of a hack that can drop people from a game would most likely increase the amount of people abusing it. It wouldn't surprise me in the least to see the "bugfix" listed in the next patch if it is going to be listed at all.
About the information vacuum: i think it's already too late for that, too many ppl posted about this in the forum (also on reddit). The moment you know the name of the hack you can look for it (and abuse it if you're douchebag).