A highly sophisticated, unpatched zero-day exploit is actively targeting users of Adobe Reader. Detected by the EXPMON threat-hunting system, this malicious PDF file is designed to steal sensitive local data and perform advanced system fingerprinting.
No, this is not responsible disclosure; the guy notified Adobe at the same time as publication. He claims to justify by saying he is seeing this in the wild, but “responsible” does not mean what he says that means.