The FBI cracked a Silicon Valley-based software piracy ring over the weekend, arresting 27 people.
'Operation Cyberstorm' saw raids take place in San Jose and surrounding towns. FBI director Robert Mueller hailed the operation "one of the largest takedowns I think we have seen in the country."
The pirates were copying popular business packages such as Microsoft Office 2000, Adobe Photoshop and Symantec antivirus software, and selling them over the internet, the FBI said.
Federal agents purchased $5.5m worth of fake software during investigations leading up to the sting.
In a separate operation, a husband and wife team were arrested for alledgedly supplying licensed Microsoft products to the piracy ring.
Software companies claim that piracy costs the industry over $12bn annually.
Those arrested could face between five and twenty years in prison.
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