Self-custody wallet or exchange account: what actually changes

When you use an exchange account, the company holds the assets and you hold a claim on them. When you use a self-custody wallet, you hold a secret (a recovery phrase) that controls the assets directly on the blockchain, and the wallet software is only a way to use it. The difference is about who can say no.

What you gain with self-custody

• No one can freeze or withhold your assets. Not a company, not a court order served on a company, not an outage on a withdrawals page.
• No counterparty risk from the app. If the app’s company fails, the assets in your wallet are still yours, because they never sat on the company’s books.
• Access to everything on the chain. You can use any decentralised exchange, send to any address and connect to any application that supports your wallet.

What you take on

• You are the recovery plan. If you lose the recovery phrase, no support team can restore it. If someone else gets it, they can take everything and nothing reverses it.
• You are the one who signs. A transaction you approve is final. Approving a malicious request can drain a wallet, so reading what you sign matters.
• You pay network fees yourself and choose the network, and sending to a wrong address or the wrong network can lose funds.

Habits that reduce the risk

1. Write the recovery phrase on paper, never in a photo, a note app or a chat. Store it somewhere you control.
2. Never type it into a website or give it to anyone, including anyone claiming to be support.
3. Use a separate wallet with a small balance for experiments and unfamiliar sites.
4. Read the request before you sign. If a request asks for permission to spend all of a token (“unlimited approval”), consider whether you need it.
5. Test with a small amount first when you use a new network or address.

It is not all or nothing

Many people hold most of their assets in self-custody and keep a smaller amount on an exchange for convenience, or the reverse. The honest question is which risks you are better placed to manage: a company’s, or your own.

Aretia’s wallet is self-custody: keys are encrypted on your device and are not sent to Aretia. The browser-extension version is still in development and is not yet in the Chrome Web Store; the web wallet at aretiafinance.org/wallet works with the wallets you connect. To judge any app, see how to choose a crypto trading app. This is general education, not financial advice.