Casa multi-key vaults provide enhanced security by allowing users to easily store ether in their own digital vault with five keys. Vaults provide more distributed security compared to single-key hardware wallets, browser extensions, or third-party custodians such as crypto exchanges.

By requiring signatures from multiple devices for transactions, known as multisig, Casa helps protect funds even if the key is lost or compromised, eliminating concerns about theft, loss, or mismanagement of the exchange. The company also offers additional resources and services to help participants take over the storage themselves, including managed key replacement, individual support, and disaster recovery service when Casa stores a backup key on their behalf.