It has been discovered that an employee at the Australian immigration department mistakenly sent personal information of all world leaders attending the G20 summit to organisers of the Asian Cup football tournament.

And the heads of government were kept in the dark about the employee’s blunder.

The passport numbers and visa details of United States president, Barack Obama, the Russian president, Vladimir Putin, the German chancellor, Angela Merkel, the Chinese president, Xi Jinping, the Indian prime minister, Narendra Modi, the Japanese prime minister, Shinzo Abe, the Indonesian president, Joko Widodo, and the British prime minister, David Cameron, were all exposed.

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