British intelligence agency MI6 recently hacked an Al-Qaeda online magazine, replacing bomb-making instructions with a recipe for cupcakes.
Originally, the magazine had instructions on how to make pipe bombs, as well as articles by Osama bin Laden and deputy Ayman al-Zawahiri.
http://www.thehollywoodgossip.com/2011/06/al-qaeda-magazine-hacked-bomb-instructions-replaced-with-cupcake/