Major power failure Brazil..... hackers?

This is an disturbing coincidence, so soon after a report stating that hackers had caused previous blackouts...

Later of course retracted..

in reference to:

"Brazil's two largest cities - Rio de Janeiro and San Paulo - are suffering major blackouts due to a problem at the Itaipu dam on the border with Paraguay."
- BBC NEWS | Americas | Major power failures hit Brazil (view on Google Sidewiki)