DeFi & Crypto Technical
Wallet (Custodial / Non-Custodial)
Crypto-asset storage — custodial means a CASP holds the keys; non-custodial means the user holds the keys.
Definition
A custodial wallet means a CASP holds the private keys on behalf of the user — under MiCA Article 75 safeguarding rules. A non-custodial (self-hosted) wallet means the user holds the keys directly — MetaMask, Trust Wallet, hardware wallets. The custody distinction drives the regulatory scope.