The Australian Maritime Safety Authority (AMSA) has issued a warning for people to be aware of scam telephone calls from its number. When the call is answered, a computer-generated voice claims to be from the Australian Tax Office. AMSA says that it never uses automated or computer-generated calling.
AMSA has a helpful web page about recognising and dealing with scams on: https://www.amsa.gov.au/about/contact-us/report-or-verify-scam
For ITF advice and warnings about recruitment scams, please go here.