Security should probably be one of the first architectural discussions when building a cryptocurrency wallet, especially if the product will handle valuable digital assets.

Private key management is a major consideration. Depending on the wallet model, businesses may need encryption, secure key storage, multi-factor authentication, biometric verification, multi-signature approvals, device controls, transaction monitoring, or MPC-based signing.

The security requirements can also change depending on whether the wallet is custodial or non-custodial. A custodial wallet may require additional operational controls, role-based permissions, KYC/AML integration, and approval workflows, while a non-custodial wallet is designed around user-controlled keys.

I would also ask a development team how security testing is handled before launch. Functional testing alone is not enough for a wallet handling digital assets.

Dappfort, for example, lists encryption, multi-signature security, cold wallet support, device whitelisting, biometric verification, secure API gateways, and role-based access controls among its wallet security capabilities.

The important point is to design security into the architecture from the beginning rather than treating it as a final development step.