Exchange or Your Own Wallet? Custody, Explained

Updated 2026-10-29

Short answer: an exchange is convenient and can reset your password, but your coins depend on the exchange staying honest, solvent and open. Your own wallet depends only on you, including keeping your seed phrase safe. Most people use both: an exchange to buy and sell, and their own wallet for savings and for apps like Flare rewards.

On an exchange (custodial)

When you buy on an exchange, it holds the coins and its records show they're yours. You can trade quickly, it supports bank transfers, and if you forget your password, support can help.

The trade-offs:

• It can say no. Exchanges can pause withdrawals, freeze accounts or ask for more documents before you can move coins.
• It can fail. When an exchange goes bankrupt or is found to have misused deposits, customers can wait years and get back only part of their money. Mt. Gox (2014) and FTX (2022) are the best-known examples.
• It can be hacked, and how much it covers afterwards is up to the exchange.
• Some things need your own wallet: Flare delegation rewards, most DeFi apps, and claims like the ones on our Rewards page.

Dollars held at a U.S. exchange may be protected in some ways; crypto held there generally isn't covered the way a bank deposit is. Read your exchange's own terms.

In your own wallet (self-custody)

In your own wallet (MetaMask, Bifrost, Phantom, a hardware wallet…), only your keys can move the coins. No company can freeze or lose them.

The trade-offs:

• Nobody can recover it for you. Lose the seed phrase and the device, and the coins are gone. See seed phrases and hardware wallets.
• Mistakes are final. A wrong address or a bad signature can't be reversed. See how to read a transaction before you sign.
• You pay network fees yourself, usually small.

A simple way to use both

1. Keep on the exchange what you plan to trade or cash out soon.
2. Move savings to your own wallet, and to a hardware wallet once the amount justifies one.
3. Lock down the exchange account: an authenticator app or security key (not text messages) for two-step login, and a withdrawal address allow-list if your exchange offers one.
4. Spread the risk. If you hold a lot, don't keep it all with one company.

Moving coins between them

Most losses here are simple mistakes:

• Send a small test first, wait for it to arrive, then send the rest.
• Match the network on both sides. If you withdraw on the Flare network, the receiving address must be on Flare. The same token on a different network may not arrive.
• Use the memo or destination tag when the exchange gives you one (common for XRP, Stellar, TON and others). Without it, the exchange may not know the deposit is yours.
• Copy, paste, then check the first and last characters of the address. Our address checker also flags look-alikes of your saved addresses and exchange-deposit patterns.

Do this

1. Use an exchange to buy and sell; keep savings in a wallet you control.
2. Protect the exchange account with an authenticator app and a withdrawal allow-list.
3. Back up your own wallet's seed phrase on paper, offline.
4. Test with a small amount, match the network, and include the memo when there is one.
5. Keep records of what you buy, sell and move, for taxes.