Unlike most viruses that are designed to harm computer systems, the Stuxnet worm was designed to infect specific industrial systems. And it was very successful in its mission. In June 2010, this virus nearly sabotaged Iran’s nuclear program and also made its way to India and Indonesia.

Australia’s ABC1 has created a brief animation that describes the Stuxnet worm in plain English and the dangers of a weapon that’s made of pure code.

Ralph Langner, the man who solved Stuxnet

Ralph Langner, who was one of the first researchers to successfully solve the sophisticated Stuxnet worm, spoke at TED 2011 on how they discovered Stuxnet and what happened in those 15,000 lines of assembly code that formed Stuxnet.