The Australian Defence Department will terminate its relationship with a Sydney data centre in 2020 and move its secret files back into a government-owned hub,

The Australian Defence Department will terminate its relationship with a Sydney data centre in 2020 and move its secret files back into a government-owned hub, because a Chinese consortium bought half of the centre's parent company. Key points: Chinese consortium bought 49pc stake in data hub's parent company Defence will shift data back into government hands once contract expires Moving data could cost up to $200 million The department is preparing to spend up to $200 million on the move, despite assurances from the company, Global Switch, that its files are secure.