In June 2011, Obama administration implied to Iceland's authorities they had knowledge of hackers wanting to destroy software systems in the country, and offered help, then-Interior Minister Ogmundur Jonasson, said in an interview with the Katoikos publication.

However, Jonasson said he instantly became "suspicious" of the US good intentions, "well aware that a helping hand might easily become a manipulating hand."

Later in the summer 2011, the US "sent a planeload of FBI agents to Iceland seeking our cooperation in what I understood as an operation set up to frame Julian Assange and WikiLeaks," Jonasson said.

Icelanders seemed like a tough nut to crack, though.

"Since they had not been authorized by the Icelandic authorities to carry out police work in Iceland and since a crack-down on WikiLeaks was not on my agenda, to say the least, I ordered that all cooperation with them be promptly terminated and I also made it clear that they should cease all activities in Iceland immediately," the politician said.