Exchange vs Your Own Wallet: Not Your Keys, Not Your Coins
Exchange balances as IOUs, who holds the keys, lessons of Mt. Gox and FTX, and self-custody with a seed phrase backup.
English · ~1 min · Published 2026-10-13
Key takeaways
- Coins on an Exchange. When you buy Bitcoin on an exchange, it usually stays in their wallet.
- The Risks. Exchanges can be hacked.
- Your Own Wallet. In your own wallet, you hold the keys, and only you can move your Bitcoin.
Full transcript
Coins on an Exchange
When you buy Bitcoin on an exchange, it usually stays in their wallet. What you see is a balance, a promise that they owe you Bitcoin. The exchange holds the private keys, so it controls the coins. Exchanges are convenient for buying and selling.
The Risks
Exchanges can be hacked. They can freeze withdrawals or close your account. Some have gone bankrupt, like Mt. Gox in two thousand fourteen and FTX in two thousand twenty-two. That is why people say: not your keys, not your coins.
Your Own Wallet
In your own wallet, you hold the keys, and only you can move your Bitcoin. You must back up your seed phrase safely. If you lose it, no one can help. Start by withdrawing a small test amount to make sure everything works. Exchanges for trading, your own wallet for control. Learn both, and choose carefully.
FAQ
- What is this video about?
- Exchange balances as IOUs, who holds the keys, lessons of Mt. Gox and FTX, and self-custody with a seed phrase backup.
- Is this investment advice?
- No. The video explains how Bitcoin works and does not tell you to buy or sell anything.
Go deeper on the site
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- The Bitcoin Halving Explained: 50 → 3.125 BTC
- Bitcoin Wallets Explained: Hot vs Cold, Keys and Seed Phrase
Not investment advice.