In a series of revelations, Dagens Nyheter has shown how the man got several sensitive jobs in the Swedish intelligence service. That despite the fact that he had false grades and had not even taken his officer's degree.

Top job at NATO

On Tuesday, the magazine reveals that the man even got a top job at NATO's headquarters in Europe. To get the job, he was temporarily promoted to lieutenant lieutenant and worked with foreign officers. The man worked there, among other things, with systems used to share secret information between NATO countries and partners in Afghanistan.

The man got the job in 2012 and worked there until the spring of 2013. Afterwards he was awarded a medal by the Swedish Armed Forces.

Despite earlier warning signals about the man, the Armed Forces did not alert NATO until Monday when Dagens Nyheter had published its review.

- I don't know exactly how to describe their reaction. But they don't think this is particularly good. It is more about Swedish relations with other organizations and countries. This is not something we really want to discuss in the media, says Carl-Axel Blomdahl, the Armed Forces investigator, to the newspaper.

"Totally incomprehensible"

Ann-Sofie Dahl, who is a lecturer in international politics and is described as one of Sweden's leading experts on NATO, has a hard time understanding how this has been possible.

- That he was not caught by the security checks long before, but was able to get so far in the system on false merits. Totally incomprehensible. And very, very worrying for Sweden's collaboration with NATO, she tells Dagens Nyheter.

She continues:

- Without a doubt, this means, and is perceived as, a major security risk. Trust in Sweden as a reliable partner will learn a great deal from this, and it will take a very long time and great efforts to repair.