Cryptography expert Bruce Schneier posted yesterday something about flaws in the security system of Hogwarts School of Witchcraft and Wizardry (from Harry Potter for those who managed to escape the phenomenon) and in J.K. Rowling’s magical world:

And while we're on the subject, can you really render a powerful wizard helpless simply by taking away his wand? And is taking away a powerful wizard's wand simply as easy as doing something to him at the same time he is doing something else?

One, this means that you're dead if you're outnumbered. All it would take [is] two synchronized wizards, both of much lower power level, to defeat a powerful wizard. And two, it means that you're dead if you're taking by surprise or distracted.

This seems like an enormous hole in magical defenses, one that wizards would have worked feverishly to close up generations ago.

I just found that funny – I see Schneier’s point and at the same time it’s one of those paradoxical could-turn-absurd blog/web pieces that I love and keep me surfing (in this case, a world class expert serious about a children's book).

Note: the comments are worth reading too, though a bit geeky...