Swiss bunker protects millions in Bitcoin

Originally designed to withstand nuclear attacks, the facility now features biometric ID checks, Faraday cages, and multiparty computation (MPC) to ensure maximum security.

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Deep in the Swiss Alps, a nuclear bunker serves as an ultra-secure home for Xapo Bank’s Bitcoin vault. The hidden facility, originally designed to withstand nuclear attacks, now protects millions in Bitcoin, utilising top-tier security technology. With layers of protection ranging from biometric ID checks to Faraday cages, the bank ensures no unauthorised access.

Xapo Bank employs multiparty computation (MPC) to secure its Bitcoin holdings. Instead of using traditional multisig methods, MPC breaks up private keys into parts stored in different locations. This method eliminates the risk of any one person controlling the full key, offering unmatched protection.

The bunker itself is a marvel of engineering. Outfitted with HEPA filters, underground lakes for cooling, and military-grade defences, it’s designed to survive anything from natural disasters to attacks. Xapo Bank’s clients enjoy peace of mind, knowing their Bitcoin is housed in one of the most secure facilities in the world.