Called and didn't speak to me. I hung up and called back. No ringtone? Guessing a scam caller

Scammer pretending to be Telstra and reporting some error with your internet connection.

Another scam call coming out of, forwarded through Victoria

Tried to convince me he was from Telstra NBN, I had been infiltrated / shared my password and was in danger ….. intstagram, You tube and other sites I don’t use. Told him I didn’t believe him. He hung up

Silence when you answer and then they hang up. Called back and call gets disconnected.