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Guide · June 2026

Crypto wallet vs exchange: where to keep your crypto

On a custodial exchange, the platform safeguards your crypto for you — under MiCA it must keep client assets segregated. In your own wallet you hold the private keys yourself: full control, but also full responsibility, since lost keys mean lost funds. Many investors combine both depending on amount and purpose.

When you own crypto, it has to be stored somewhere. The two main models are a regulated platform that holds it for you (custodial), and your own wallet where you hold the keys (self-custody). This guide explains the difference, the benefits and the responsibility. It is educational, not advice.

Two ways to store crypto

With custodial storage, a platform holds your assets and the associated keys for you — much like a bank holds your money. With self-custody, you hold the keys yourself in a wallet (e.g. a hardware or software wallet), and only you have access.

Both have advantages. Custodial is simple and offers support and recovery; self-custody gives full control, but also full responsibility.

What a regulated platform does

A regulated CASP under MiCA must keep client assets in segregated custody — separate from the company’s own funds — and is supervised. That reduces counterparty risk compared with an unregulated exchange.

Penning is supervised by the Danish FSA but holds no client crypto: when you buy through Penning, the assets are delivered directly to your own wallet — you hold the keys from the start. Read more on our security & compliance page.

Self-custody: full control, full responsibility

With self-custody there is no intermediary — but if you lose your seed phrase or keys, there is no "forgot password". You are responsible for security, backups and avoiding phishing.

Many people use a combination: a regulated platform to buy and trade, and their own wallet for long-term storage of larger holdings.

How to choose

If you want simplicity, support and regulation, a custodial CASP is a good starting point. If you want maximum control and are comfortable managing keys and backups yourself, self-custody may suit you.

Either way: use a regulated platform to buy and trade, verify its authorisation, and understand the risk of the crypto asset itself.

Frequently asked questions

FAQ

A custodial exchange holds your assets and keys for you (with support and recovery). Your own wallet means you hold the keys yourself and have full control — and full responsibility.

This guide is educational and not advice. Both custodial and self-custody carry risks. Verify a provider’s authorisation, and protect your own keys and backups.

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