Here’s a question.

How do you attack a highly protected Iranian computer system not linked to the Internet?

Here’s the (obviously well briefed) answer. A virus which does all sorts of ingenious things in sequence, very fast, and without being spotted…

In case you’re thinking about having a go yourself, you’ll need to set aside approximately 10,000 days of top-end computer skill to do this little job.

So who has the resources for a little job like this? Maybe a nice team effort:

The most likely answer, he says, is that a consortium of intelligence agencies worked together to build the cyber bomb. And he says the most likely confederates are the United States, because it has the technical skills to make the virus, Germany, because reverse-engineering Sieman’s product would have taken years without it, and Russia, because of its familiarity with both the Iranian nuclear plant and Sieman’s systems.

If only…