# Self-custody vs custodial

With self-custody you hold the keys and the responsibility; with a custodian such as an exchange, someone else does. Compare the risks and choose.

Canonical page: https://mybitcoinexplorer.com/learn/self-custody-vs-custodial
Topic: Wallets and security
Published: 2026-10-29
Updated: 2026-10-30


## Who holds the keys?
> Diagram: Self-custody: your keys control coins on the blockchain — *You: hold the keys → Blockchain: your coins

> Diagram: Custodial: the company holds the keys and owes you a balance — You: an account → !Exchange: holds the keys → Blockchain: their coins, your claim

| | Self-custody | Custodial |
|---|---|---|
| Who holds the keys | You | A company |
| What you own | Bitcoin on the blockchain | A claim on the company |
| If they're hacked or go bust | Not affected | You might lose funds |
| If you lose your seed | Funds are lost | Password reset is possible |
| Can it be frozen | Not by a third party | Yes |
| Privacy | Better | The company knows your activity |

## "Not your keys, not your coins"
History has many examples of exchanges collapsing or freezing withdrawals. With a custodian, your balance is a promise. With self-custody, it's yours, but nobody can help if you lose access.

## A sensible middle ground
- Keep only what you're actively trading on an exchange.
- Move savings to a wallet you control, ideally a [hardware wallet](https://mybitcoinexplorer.com/learn/hardware-wallets).
- [Back up](https://mybitcoinexplorer.com/learn/backing-up-a-wallet) the seed properly and test a recovery with a small amount.
- For large amounts, consider [Multisig](https://mybitcoinexplorer.com/learn/multisig) so that no single mistake loses everything.


## Withdrawing from an exchange, step by step
1. Set up your own wallet and back up its seed phrase.
1. Copy a receiving address from your wallet.
1. Withdraw a **small test amount** from the exchange to that address.
1. Check it arrived: paste the txid into MyBitcoinExplorer's [search](/explorer).
1. Withdraw the rest once the test works.


## Key takeaways

- Custodial means a company holds your keys; self-custody means you do.
- Custody risks: hacks, insolvency and freezes. Self-custody risks: losing your seed.
- Move savings into self-custody with a solid backup.

## Common questions

### Is it safe to keep bitcoin on an exchange?

It depends on the exchange, and you rely on it completely. Many people keep only short-term trading balances there.

### What's the first step to self-custody?

Install a reputable wallet, write the seed down offline, then withdraw a small test amount.

### What does 'not your keys, not your coins' mean?

If someone else holds the private keys, you rely on them to give you your bitcoin back.

### Is self-custody risky?

It moves the risk from a company to you. Good backups and a hardware wallet make it manageable.

## Related lessons

- [What is a Bitcoin wallet?](https://mybitcoinexplorer.com/learn/what-is-a-bitcoin-wallet)
- [Hardware wallets](https://mybitcoinexplorer.com/learn/hardware-wallets)
- [How to back up a Bitcoin wallet](https://mybitcoinexplorer.com/learn/backing-up-a-wallet)
- [How is Bitcoin different from bank money?](https://mybitcoinexplorer.com/learn/bitcoin-vs-bank-money)