Alleged NSA-GCHQ Attack on Jean-Jacques Quisquater

Any further information on the alleged NSA-GCHQ attack on Jean-Jacques Quisquater than these two reports? http://cryptome.org/2014/02/nsa-gchq-quisquater.pdf Apparently Quisquater would not have known about the attack if not told by an insider. Insider comsec disclosures may be finally getting legs, not yet long, but more than NDA-official secrecy paralysis. Any other cryptographer attacked (as if it would be known)?