The U.S. National Security Agency hacked the private computer network of the oil giant Petrobras, according to documents leaked by Edward Snowden.

Brazil’s Globo TV reported on its Fantastico news program Sunday that the computer networks of Petrobras, Google and SWIFT — the firm that processes most international bank transfers — were all accessed by the NSA.

The companies were identified in a May 2012 top-secret NSA presentation that Globo said was used “to train new agents step-by-step how to access and spy upon private computer networks.”

An earlier NSA statement denied the agency conducts economic espionage.

The NSA told Globo in a statement that “We do not use our foreign intelligence collection capabilities to steal the trade secrets of foreign companies in order to give American companies a competitive advantage.”

Brazil’s President Dilma Rousseff said Friday at the G20 conference, “I don’t see how someone can defend spying on a democratic country, or spying on the privacy of people.”

Petrobras produces more than 2 million barrels of oil and equivalent per day.

It specializes in development of advanced technology from deep-water and ultra-deep water oil production, which relies heavily on the use of a network of supercomputers.

In September 2010, it sold $72.8 billion of shares on the Brazil exchange, becoming the fourth-largest company in the world measured by market capitalization.


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