Bitcoin custody is evolving from defending against digital hacks to thwarting physical violence. On TFTC, Bitkey's Max Guise detailed a new vault system that uses configurable time delays - up to a week - before funds can move. The logic is simple: most robberies are fast. If a thief can’t access the money immediately, the incentive to wait disappears.
Guise argues the industry’s reliance on portable seed phrases is a liability during a wrench attack. They work too fast. Bitkey replaces them with a 2-of-3 multisig system involving hardware, a phone, and Block's servers. The new hardware wallet includes a screen for verifying critical account changes, creating a physical barrier against phishing. The goal is to ground digital actions in physical atoms.
“Security is about grounding digital actions in physical atoms.”
- Max Guise, TFTC: A Bitcoin Podcast
If a thief steals the keys and waits out the timer, the system can be configured to automatically eject funds to a safe secondary wallet once the lock expires. This shifts the security model from hiding a balance to making the money impossible to move quickly. Guise believes making money slow to move is the only way to stop fast violence.
While Guise focuses on personal security, other industry players are building financial infrastructure at scale. On Bitcoin 2026, Jack Mallers outlined his merger of Strike with Tether's mining arm to create a vertically integrated ‘Bitcoin Company.’ This entity aims to provide volatility-proof loans, letting users spend without fear of collateral liquidation during flash crashes.
These parallel efforts highlight divergent paths to mainstream adoption. Bitkey absorbs complexity to protect individuals from physical threats. Strike and Tether build institutional rails for using bitcoin as capital. Both address core adoption hurdles, but only one directly solves the problem of a wrench to the head.
