Caller: Not sure of the name

Claimed to be working for Telstra, I advised my internet isn't with Telstra and he said he knew that but couldn't tell me who the internet provider was. He said there was foreign hackers and he'd help me by getting me to access something on my computer. Obviously a scam and I said that to him, he started to get aggressive and tell me I had to listen to him. I laughed and hung up the phone