Cable: No Cyber Attack in Brazilian ’09 Blackout

“The Nov. 2009 blackout that plunged millions of Brazilians into darkness for up to six hours was not the result of cyber saboteurs, but instead an unusual confluence of independent factors that conspired to cause a cascading power failure, according to a classified cable from the U.S. embassy in Brazil.”

(Source: Cable: No Cyber Attack in Brazilian ’09 Blackout — Krebs on Security)