writes "The main power plant in Brazil (Itaipu) shutdown last night causing a 17.000 MW power drop, which turned off the power in the states of Sao Paulo, Rio de Janerio, Espirito Santo. For those of you who don't know Brazil, that means about 80 million Brazilians (about half of the countries population) was without power. The outage also hit the entire area of Paraguay, since almost 100% of its power comes from the Itaipu powerplant.
As of this moment power hasn't been completely restored. The official (link in pt-br) version is that unusually strong storms caused the powerplant to shutdown. But this comes just after this slashdot article about how hackers caused a similar power outage in Brazil in 2007. Coincidence?"Link to Original Source