JAKARTA: Indonesia launched a new cyber security agency Wednesday as the world?s biggest Muslim majority country moves to tackle online religious extremism and a flood of fake news on social media. Millions of Indonesians are going online for the first time just as concern about Internet hoaxes reaches a fevered pitch. One of the most high-profile cases in recent times was a false claim circulating on social media in December that Beijing was seeking to wage biological warfare against Indonesia. The viral hoax prompted the Chinese embassy to issue a statement saying that the reports were ?misleading?. On Wednesday, Indonesian president Joko Widodo named Major General Djoko Setiadi, former chairman of the country?s encryption agency, to lead the new body.