Exchange vs. self-custody: who should hold your crypto?

Last updated November 12, 2026

When you buy crypto on an exchange, the exchange usually holds it for you. Your account shows a balance, but the exchange controls the keys. Self-custody means moving it to a wallet where only you hold the keys.

Neither is right for everyone. It’s a tradeoff between convenience and control.

Keeping crypto on an exchange

Pros

• Easy: no seed phrase to protect.
• Forgot your password? The exchange can help you recover your account.
• Simple to buy, sell and cash out.

Cons

• You’re trusting the company. If it fails, freezes withdrawals or is hacked, you may not get your funds back. Customers of exchanges like Mt. Gox in 2014 and FTX in 2022 learned this the hard way.
• Your account can be locked or restricted.
• Your account can be phished. A stolen login can be enough to drain it.

Self-custody

Pros

• Only you can move your funds. No company can freeze or lose them.
• You can use apps directly, without asking an exchange.

Cons

• You’re fully responsible. Lose your seed phrase and nobody can help.
• You have to watch for scams yourself, especially fake support and malicious signatures.

A sensible split

• Small amounts or frequent trading: a reputable, regulated exchange is fine. Turn on strong two-factor authentication and a withdrawal allowlist.
• Savings you plan to hold: move them to self-custody, ideally a hardware wallet.
• Before moving everything: send a small test amount and practice restoring your wallet from its seed phrase.

Questions to ask about any exchange

1. Is it licensed or registered where you live?
2. Does it publish proof of reserves or independent audits?
3. Does it offer authenticator-app or passkey two-factor (not just SMS)?
4. Can you set a withdrawal address allowlist?