Received a recorded message saying they were from the ATO and that my tax file number had been involved in fraudulent activity. I hung up on them

Caller: (02) 6100 3761

it was a recorded message, saying that you have done fur dent tax, and we will be getting an arrest warrant for you, and have you arrested, if you do not call back.

Same as above post. Hung up as soon as they mentioned fraud using my TFN and that they were from the ATO.

Answered call from this number, automated robot said was tax office said tax file number was compromised and wanted my details otherwise I would be fined, rang back some Indian answered sounded like call centre,lots background voices,answered too quick for ATO , probably identity scam ,,,

This was a recorded message saying it was the ATO and that my TFN had been flagged and there was a warrant for my arrest.
It said to call them back on the same number.