What Is Self-Custody?
Also known as: Non-Custodial Storage, Self-Custodial Wallet, Self Custody
In short
Self-custody means holding cryptocurrency in a wallet whose private keys are controlled solely by the owner, rather than on an exchange or with a third party, giving the user full control over the assets and full responsibility for them.
On a blockchain, the actual owner of a cryptocurrency is whoever controls the private key authorized to spend it. In a balance held on an exchange, the keys are with the exchange, and what the user owns is in effect a claim against the exchange. In self-custody, the user manages their own keys by using a hardware wallet or a software wallet in which only they hold the keys (non-custodial). The community saying “Not your keys, not your coins” captures this difference.
Exchange bankruptcies and account freezes are among the events that have increased interest in self-custody; for example, during the collapse of FTX in 2022, users could not access the funds they held on the exchange. Self-custody removes this counterparty risk and allows direct use of DeFi applications.
The trade-off is full responsibility. If the recovery phrase is lost, there is no support line to bring the funds back; if it is obtained by someone else, the funds can be stolen irreversibly. For this reason, backing up the recovery phrase securely and offline, staying alert to phishing attempts, and using methods such as multisig for large amounts are important.
Last updated: · This content is for information purposes only and is not investment advice.