While this didn't happen in a vacuum, I don't think it is related to the Iran story. The Iran story is a bit too fantastic for me to buy.
The Iran story did one thing for certain, it made North Korea's embassy make direct contact will all NK Nuke enrichment scientists in Iran at the time to validate their safety. Intercepting that data would reveal who/how many were in Iran @ the time and thus who was back home preping a bomb test.
Just my Opinion.
Read more: http://www.longwarjournal.org/threat-matrix/archives/2013/02/israel_reportedly_struck_addit.php#ixzz2K9FhXAQx
And a good opinion it is.