What do you make of this code? Can you see the solution already? Then most likely, you're already working as a spy for MI5 or MI6.
If you're working in a much less exciting job, then spend some time cracking this code and land yourself a gig as a real-life James Bond.
The Government Communications Headquarters, GCHQ, has posted sent out this puzzle on social networks to see who's smart enough to make it as a high tech UK spy - just the kind of character that the Iranian protestors are scared of.
You have just over ten days to prove yourself - the ticking clock adds to the Bond-like pressure.
The official line is: “The digital arena is fast moving, and from a recruitment perspective we acknowledge the need to engage with prospective candidates in new and innovative ways. With this marketing initiative we hope to reach out to a broader audience, who may not be attracted to traditional advertising methods.”
We a read that as cyber crime is much more real threat, and GCHQ know that they've got to be smart to dig out the best hackers, coders and geeks to recruit for Her Majesty's Secret Service.
If you do crack it, and you get a new job out of it, do let us know, won't you? We'll look out for your secret signal.