Received call from (08) 8339 7237 from person calling himself Sandy Johnston but speaking with foreign accent (possibly of Indian descent). He claimed he was from Telstra NBN technical department and accused me of using NBN illegally to hack other people's accounts naming a particular date. Interestingly, I don't even have NBN. Sounds like a fraudster. Told him I will report call to Telstra and Federal Police for investigation.