The article says the Mossad had known about the files for several years and knew Iran kept moving them around, hoping to keep them hidden.
Still, the Israelis kept track of them, knew the location, broke in, stole them, and got them to Israel the same night, apparently using an extensive on-the-ground infrastructure.
Of course, the Mullahs are arrested huge numbers of “suspects.”
Also, they called Netanyahu the “boy who cried wolf.” Perhaps their top insult-designers have been arrested. Normally, Aesop’s fables are not your go-to source.