Wrench attack

A wrench attack is a plain-language name for coercion: someone uses threats or physical violence to force a person to reveal secrets or approve a Bitcoin transaction. It does not require breaking encryption.

Discreet handling of holdings and separated multisig keys can reduce some risks, but no wallet design guarantees personal safety. Avoid publicising holdings or key locations.

Related terms

Multisig - A Bitcoin wallet that requires more than one key to move funds.
2-of-3 - A multisig wallet where any two of three independent keys must approve spending.
Private key - A secret number used to authorise Bitcoin transactions.

Common questions

Wrench attack: common questions

Talk it through

Get this structured properly for your holdings.

Book a free 30-minute discovery call with a director and we'll map your custody and succession plan.

Book a free 30-minute call