Several government and sponsor websites have been targeted by hackers.
Angelica Mari tracks the business IT agenda in the southern hemisphere's biggest economy.
Angelica Mari is ZDNet's Brazil Contributing Editor.
As the World Cup kicks off, we list five technology projects rolled out across the venues that will be hosting the tournament in Brazil over the next month.
Technology deployment across host cities has prompted growth in new users.
The company is pitching its machine-learning project to local businesses.
The project was completed in a rush - but it's all ready to go
The internet-enabled balloons were launched in two cities in the state of Piauí
The Google dongle finally becomes available in Brazil a year after it was launched in the US
About 74,000 fans are expected to upload videos through smartphones during the event, says research
Internal communications platform has been targeted by hackers.
The $1.1bn site is considered a key legacy to the state following the sporting events