https://www.theregister.co.uk/2018/10/29/oz_china_warning/

The head of the Australian Signals Directorate, the Down Under equivalent of America's NSA, has said Chinese vendors Huawei and ZTE would be a threat to critical infrastructure if they were allowed to take part in building the country's 5G networks.

In a rare public speech, ASD boss Mike Burgess said “a potential threat anywhere in the network is a threat to the whole network”.