#6 Brazil

Brazil, the largest country in both South America and the Latin America region has accounted for 3.3 percent of the world's attack traffic during the fourth quarter of 2012, putting the country in 6th place. Brazil's share fell from 3.8 percent in the previous quarter and 4.4 percent in the year-ago period.

Last month, Brazilian hacker group known as "HighTech Brazil HackTeam" has reportedly breached one of the official NIC server of India and took control of the websites. And in January, Reliance Netconnect website and South Africa Top TV website have been hacked by Brazil Hack Team.

There were cyber attacks in Brazil itself, where Brazilian financial websites belonging to Febraban, Banco BMG, Banco Panamericano, Citigroup were been hacked.

#5 Taiwan

Taiwan, a province of China, in East Asia, has accounted for 3.7 percent of the world's attack traffic during the fourth quarter of 2012, putting the region in 5th place. Taiwan's share dropped from 4.5 percent in the previous quarter and 7.5 percent in the year-ago period.

While Taiwan is a top source of attack traffic, it is also a popular target. Research by the security firm Sophos found that 12.7 percent of computers in Taiwan had been attacked by malware during a three-month study last year.

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