While you are in Australia, you must be able to support yourself and any eligible dependant family members who come with you. You might be asked to provide evidence of funds, such as an employment contract, bank statements or a letter from your financial institution stating your financial position. Allowances, accommodation and other assistance from your employer can also be considered when looking at your ability to support yourself.https://www.homeaffairs.gov.au/trav/visa-1/408-
so steht es auf der Government Seite. Ist also gut möglich, daß ihr nachweisen müßt, daß ihr genug Geld habt.