Brazilian hackers are threatening to disrupt the World Cup with attacks ranging from jamming websites to data theft.

Furious about the ($14 billion in federal funds being spent on World Cup preparations, more than a million Brazilians took to the streets last June in a wave of mass demonstrations, calling for better public services, greater transparency, and a crackdown on corruption, says Yahoo News.

Now, hackers say they will join the fray. "We are already making plans," said an alleged hacker who goes by the nom de guerre of Eduarda Dioratto. "I don't think there is much they can do to stop us."

They said the event offers an unprecedented global audience and an opportune moment to target sites operated by FIFA, the government, other organizers or corporate sponsors, says Yahoo News.

While most of the fretting ahead of the tournament is focused on the completion of stadiums by kickoff on June 12, experts agree that little attention is being paid to Brazil's telecommunications infrastructure, Yahoo News reports.

Problems include overstrained networks, widespread use of pirated software and low investment in online security. To make matters worse, Brazil is home to one of the world's most sophisticated cyber-criminal communities, which is already disrupting ticket sales and other World Cup commerce.

Brazil says it is ready, or as ready as it can be,says Yahoo News. "It would be reckless for any nation to say it's 100 percent prepared for a threat," said General José Carlos dos Santos, the head of the cyber command for Brazil's army. "But Brazil is prepared to respond to the most likely cyber threats."

http://uk.eurosport.yahoo.com/blogs/the-rio-report/hackers-target-brazil-world-cup-cyber-attacks-164650301.html