Self-custody means holding your own private keys rather than leaving them with an exchange or custodian. It's the practice behind the crypto phrase "not your keys, not your coins" — if you don't control the keys, you're relying on someone else to honor your claim to the funds.
Self-custody removes counterparty risk tied to an exchange's solvency or security, but it shifts full responsibility onto the user: there's no password reset if a seed phrase is lost or stolen, and mistakes are typically irreversible. This tradeoff became especially visible after high-profile exchange collapses left custodial customers unable to access funds.
Self-custody generally involves a hardware wallet or other non-custodial software wallet. It's a security posture with real tradeoffs, not a one-size-fits-all recommendation; this is general information, not financial advice.
Key takeaways
- Self-custody means holding your own private keys instead of leaving them with an exchange or custodian, following the crypto principle not your keys, not your coins, typically via a hardware or non-custodial software wallet.
- Self-custody removes counterparty risk tied to an exchange's solvency or security failures, a distinction that became especially visible after major exchange collapses locked custodial account holders out of their funds.
- Self-custody comes with real responsibility: there is no password reset if a seed phrase is lost or stolen, and mistakes in managing keys are typically irreversible.
Self-Custody — frequently asked questions
What happens if I lose my seed phrase with self-custody?
Unlike a custodial wallet, self-custody has no password reset. If a seed phrase is lost or stolen, access to the funds can be permanently lost or compromised, since there is no third party to restore it.
Is self-custody safer than keeping crypto on an exchange?
It removes exchange counterparty risk, since you are not relying on a third party's solvency or security. But it shifts full responsibility for key security to you, so it is a tradeoff, not automatically safer for everyone.
Do I need a hardware wallet for self-custody?
Hardware wallets are a common way to self-custody, but non-custodial software wallets also work by keeping keys under your control rather than an exchange's. This is educational information, not financial advice.
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