BRUSSELS (AP) Belgian authorities said Wednesday they are investigating the origin of espionage software that was left in Prime Minister Elio Di Rupo's office to secretly monitor his activities.
The federal prosecutor's office said it also was looking into a separate, more recent hacking attack, which apparently was aimed at blocking government sites and not linked to spying itself.
Thomas Mels, Di Rupo's spokesman, said that in 2012 officials found the "intrusive software which gathered information and sent it through to a server from whoever put the software there in the first place."
Wenke Roggen of the prosecution's office said the investigation into the origins of the software was still ongoing, and he could not comment further.
Recently, some European countries have complained about secret surveillance of their top officials and citizens in the wake of revelations about a far-reaching spying program by the U.S. National Security Agency.