So there is a law called Telecommunications and Other Legislation Amendment (Assistance and Access) Act 2018 that was recently made law in Australia. From what I have heard about it, it allows the government to demand that you break security if requested.
So what if your company provides end to end encryption (e.g. Whatsapp), is based in America, and just ignores the Australian court order? What can Australia do to you if you keep your money outside of Australia?