1) According to the Wikileaks cables, Israel's spy agency Mossad's latest claims foreshadowed that Iran would be nuclear armed by 2011.

http://www.presstv.ir/detail/159244.html

2) Iran not able to build nuclear bomb before 2015

http://www.alarabiya.net/articles/2011/01/07/132525.html

3) 2015 > 2011

4) Israel refuses to take credit for stuxnet. So this is impossible.