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Explainer: Crypto ‘Wrench Attacks’ and Why Hardware Wallets Don’t Prevent Coerced Transfers

The term “wrench attack” in crypto comes from an XKCD comic about a $5 wrench, referring to physical coercion to force victims to hand over funds. Hardware wallets isolate keys and multisig divides signing authority, but neither automatically prevents coerced transfers. The explainer notes that while these tools add security layers, they do not eliminate the risk of someone being forced to authorize a transaction under duress.

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AI take

This is a useful corrective to a common assumption in crypto security culture: that better key management is the same as better personal safety. The people most exposed are exactly those who believe self-custody and multisig make them untouchable, since the threat model here is coercion, not hacking. The explainer stops short of proposing mitigations, so whether the industry moves beyond tooling toward duress-aware practices — and whether hardware vendors address this openly — is the open question worth watching.

Generated by AI for reference only.

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