Said they were ATO and that my TFN had been flagged as undertaking fraudulent activity. I had to call back in order to prevent being arrested and executed

Caller: Scam

Recorded message that I have a warrant for my arrest as my tax file number has been flagged for fraud.

Received a call from this number saying they were from the ATO and that a warrant was out for my arrest. Call ended up dropping out.
Scary!!