Caller: Telstra NBN fake

Claiming to be from Telstra in relation to NBN Co stating that NBN was being hacked and used off the street and that he needed to go through a series of remedies. I informed him that the police would be giving him a call back and a I required his name and phone number. He got very abusive and hang up. He was asking why are would we need his name and number?

Guess because you are a criminal...that's why!