Non-custodial Wallets
In a non-custodial walletA wallet is a device (a hardware device, a program, or servi... More, the private key is held by the owner of the wallet. Whoever holds the private key also has control of the funds in the wallet, but is also responsible for not losing it, since this will usually lead to losing the funds. This contrasts from a custodial wallet, where the key is controlled by a custodian (typically a cryptocurrency exchangeA cryptocurrency exchange is a business that allows customer... More.)