Worrying about someone coming to take what you've got is a whole different story than trying to find a good ROI.

If you're worried about coming taking what you've got then you've already fucked it by talking about crypto online. In a Mad Max scenario, they'll get your passphrases out of you or they'll kill you trying.

In a non-Mad-Max scenario, it doesn't matter who knows what, it's just about trying to be in the best risk/return ratio you can.