Websites belonging to the Brazilian government and energy giant Petrobras were knocked offline Wednesday in a series of cyberattacks. The LulzSec hacking group credited its “Brazilian arm” for the attacks, which are the latest in a string of anti-government cyberassaults launched by the anarchic hacking group. The attacks are what’s known as a distributed denial of service attack. The group behind the latest incidents, appears to be a new group of Portuguese speaking volunteers who have decided to hit Brazilian targets for political reasons.”]