Stuxnet worm infected at least 30,000 Windows PCs

Iran confirms massive Stuxnet infection of industrial systems

Officials in Iran have confirmed that the Stuxnet worm infected at least 30,000 Windows PCs in the country, multiple Iranian news services reported on Saturday. Experts from Iran's Atomic Energy Organization also reportedly met this week to discuss how to remove the malware.

Stuxnet, considered by many security researchers to be the most sophisticated malware ever, was first spotted in mid-June by VirusBlokAda, a little-known security firm based in Belarus. A month later Microsoft acknowledged that the worm targeted Windows PCs that managed large-scale industrial-control systems in manufacturing and utility companies.

Those control systems, called SCADA, for "supervisory control and data acquisition," operate everything from power plants and factory machinery to oil pipelines and military installations.

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