It seems like LulzSec is a group of hackers that are spread all over the world, and not just in the previously suspected U.S., Spain, and U.K, but also Brazil. A branch of LulzSec called LulzSec Brazil has taken down the Brazilian government portal and the homepage of the President of Brazil.
It appears that both websites under a packet flood as neither can be reached at the time of this blog. The LulzSec Brazil group started on June 19th, and promised to attack the government of Brazil if they had reached 1,000 followers on Twitter. The group currently has 1,200 followers on Twitter