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by j3th9n 391 days ago
You might want to study asymetric cryptography.
1 comments

No, you'd better hope that the kidnappers have studied cryptography. If they think they can extract something, they'll go ahead anyway.
Why don't they bother traditional bank managers then?

One time long ago someone did try to get money by forcing a bank owner to open a vault, and it didn't work, and since then everyone knows it's fruitless.

It just needs to actually be fruitless. It sounds like for crypto custodians, it's not fruitless and they know that.