A number of Anonymous-affiliated groups are responsible for the attacks
Anonymous hackers continue to target Brazilian government websites in protest against the upcoming 2014 FIFA World Cup.Over the past days, they’ve hacked and defaced subdomains on the websites of various Brazilian states, including Ceará (barro.ce.gov.br), Santa Catarina (indaial.sc.gov.br), Bahia (dommacedocosta.ba.gov.br) and São Paulo.
At the beginning of the campaign, in late-December 2013, they hacked the website of the Igarapé do Meio municipality in Maranhão (igarapedomeio.ma.gov.br). Various hacker groups are behind the #OpWorldCup attacks, including DK Brazil HackTeam and Insanity HackTeam.
The hacktivists are protesting against the World Cup because they say the sporting event has a negative impact on Brazil and its people.
At the time of writing, some of the websites have been restored. However, many of them have been taken offline or they’re still defaced.