Hacker group LulzSec said it has taken two Brazilian government Web sites offline. The sites Brasil.gov.br and Presidencia.gov.br were both unavailable as of the time this story was written, ZDNet UK can confirm.
"TANGO DOWN brasil.gov.br & presidencia.gov.br LulzSecBrazil", LulzSecBrazil tweeted in the early hours of Wednesday morning.
The outage, which probably stemmed from a distributed denial-of-service (DDoS) attack, follows the arrest yesterday by the Metropolitan Police's Central e-Crime Unit of a 19-year-old man who they suspect is involved with the group.
LulzSec has denied that the individual, who it names as Ryan Cleary, is part of the group.
"Ryan Cleary is not part of LulzSec; we house one of our many legitimate chatrooms on his IRC server, but that's it," the group tweeted last night.
This story was originally posted at ZDNet UK as "LulzSec notches up Brazilian government site takedown."