Automaker blocks employees from using social networking sites such as Facebook and Xing out of fear of industrial espionage.

German automaker Porsche has blocked its employees from accessing social networking sites such as Facebook and Xing, fearing industrial espionage.

The company believes that foreign intelligence services are accessing Porsche employees' profiles on social networking sites and becoming privy to "confidential" information. So said Porsche spokesperson Dirk Erat to Bloomberg in a telephone interview.

"These services imply a certain threat potential," said Erat.

Also among the sites Porsche has blocked its workers from is eBay.

Facebook has been criticized for its lack of privacy protection. Last May, the site promised it would improve privacy settings for its users.

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