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Stuxnet malware is 'weapon' out to destroy ... Iran's Bushehr nuclear plant?

The Stuxnet malware has infiltrated industrial computer systems worldwide. Now, cyber security sleuths say it's a search-and-destroy weapon meant to hit a single target. One expert suggests it may be after Iran's Bushehr nuclear power plant.

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The reactor building of Iran's Bushehr nuclear power plant, pictured here on Aug. 20, is located about 750 miles south of Tehran. Is the power plant the target of the malware Stuxnet?

Vahid Salemi/AP

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Cyber security experts say they have identified the world's first known cyber super weapon designed specifically to destroy a real-world target – a factory, a refinery, or just maybe a nuclear power plant.

The cyber worm, called Stuxnet, has been the object of intense study since its detection in June. As more has become known about it, alarm about its capabilities and purpose have grown. Some top cyber security experts now say Stuxnet's arrival heralds something blindingly new: a cyber weapon created to cross from the digital realm to the physical world – to destroy something.

At least one expert who has extensively studied the malicious software, or malware, suggests Stuxnet may have already attacked its target – and that it may have been Iran's Bushehr nuclear power plant, which much of the world condemns as a nuclear weapons threat.

The appearance of Stuxnet created a ripple of amazement among computer security experts. Too large, too encrypted, too complex to be immediately understood, it employed amazing new tricks, like taking control of a computer system without the user taking any action or clicking any button other than inserting an infected memory stick. Experts say it took a massive expenditure of time, money, and software engineering talent to identify and exploit such vulnerabilities in industrial control software systems.

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