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Stuxnet, or how to destroy a centrifuge with a small piece of code, was a surprise to cyber security communities. The small computer worm, just a half a megabyte in size, managed to infiltrate Iran’s nuclear facilities and destroy about one-fifth of uranium enrichment centrifuges. The worm is impressive from the beginning to the end: the way it injects itself into the system, erases its traces, replicates, and, in the very end, manages to damage uranium enrichment.