Key Storage in Casa Setup

In a typical Casa setup, the user is instructed to store their keys in separate locations to protect against key loss in case of a disaster, such as at home, their office, and a bank vault. If any one of those keys survives, the user will be able to recover their funds. However, in case of a disaster that destroyed a whole city (nuclear bomb or conventional bombardment, exceptionally large earthquake, tidal wave or major flood, etc.) all three of the keys might be lost.

Mitigation:

• For exceptionally large balances, store one key in a different city / state / country.
• Store (only) 1 hardware device seed phrase on metal plates, along with your Sovereign Recovery instructions, in multiple locations. This will ensure that even if a physical attacker compromises the seed phrase, they won't be able to spend your funds.