How do serious Bitcoin holders protect themselves against physical coercion?

How do serious Bitcoin holders protect themselves against physical coercion?

I’m researching a security problem that seems different from the usual “someone stole my seed phrase” scenario.

Imagine you hold a life-changing amount of Bitcoin.

Someone physically forces you to unlock your phone / hardware wallet and tells you:

“Send everything to this address now.”

Your keys aren’t stolen. Your wallet isn’t hacked. You are the one authorizing the transaction — under coercion.

I’m curious how people with serious holdings think about this today.

Do you rely on:

• multisig?
• geographically separated keys?
• passphrases / hidden wallets?
• duress or decoy wallets?
• spending limits?
• timelocks?
• trusted guardians?
• keeping only a small amount accessible from your everyday device?

And the question I’m most interested in:

If someone had physical control of you and your signing device, is there currently a way to make it cryptographically impossible to move your long-term holdings immediately?

I’m not asking anyone to share how much they hold or any operational security details.

I’m trying to understand where current self-custody solutions actually break down under physical coercion.