[exelius]

Easy enough to rob someone for this amount of money too. As Eric Schmidt said (in the context of a hostile government, but it works here too): no passcode in the world is going to protect you from a man holding a gun to your head and demanding said passcode.

[DenisM]

Split your loot into 100 pieces and convert to BC one by one. So you get robbed five time out of a hundred, no big deal. Eventually find a reliable trader and take your business to him.

You don’t have to make it totally safe, just safer compared to other methods of evading control.

[nitrogen]

Can you lie convincingly enough to someone with a gun to your head (or the head of someone you care about) who demands the other 99 pieces as well?