It's an urban myth that you can hide your money by putting it into Bitcoin or other cryptocurrency, because only you hold the password to access the money. And it's right that not only is the password secret, but also no one can force you to reveal the password or transfer the money. With one significant exception!
The Federal Court or Australia this week ordered an investment adviser prosecuted by ASIC (the Australian Securities & Investments Commission) to instruct an ASIC officer "as to the use of their electronic devices to effect the transfer of Digital Currency" belonging to clients of the investment adviser to ASIC.
What is the penalty for non-compliance with the Court order? Contempt of Court, which could lead to imprisonment for an indefinite period of time.
And so, even though "crypto" is derived from the Greek word kryptos which means 'concealed' or 'secret', cryptocurrency is not able to be hidden from the Court.