Just like some of the world's largest banks and leading crypto exchanges, we use Fireblock's world-leading wallet technology to keep your crypto in safe custody. Fireblocks protocols are based on MPC technology that eliminates the single point of failure for private keys.

MPC, or secure multiparty computation if we want to be really technical, is a cryptographic technology which means that private keys are never fully constructed. Instead, they are divided and distributed between different parties to carry out a transaction, which provides the highest available security.

You can read more about the technology here.