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Crypto Wallets Explained: Hot vs Cold Wallets and Seed Phrases
A crypto wallet does not hold coins; it holds the keys that let you move them. Choosing the right wallet and protecting its seed phrase is the foundation of everything else in crypto.
How a wallet works
Your crypto lives on a blockchain. A wallet stores the private keys that prove you own it and lets you sign transactions. Lose the keys and you lose access; share them and someone else can take your funds.
Types of wallets
| Type | Examples of form | Good for | Main risk |
|---|---|---|---|
| Hot wallet | Browser extension, mobile app | Daily use, DeFi | Malware, phishing |
| Cold wallet | Hardware device, offline storage | Larger, long-term holdings | Loss or damage of device and backup |
| Custodial | Exchange account | Beginners, trading | Company failure, frozen account |
Protecting your seed phrase
- Write it down on paper or metal; never store it in photos, email or cloud notes.
- Keep copies in secure places.
- Never type it into a website or share it with “support”.
A sensible setup for lending
- Keep long-term savings in a cold wallet.
- Use a separate hot wallet with smaller amounts for DeFi.
- Revoke unused token approvals regularly.
Next: how to buy crypto, or back to crypto basics.
Frequently asked questions
If you also lose access to the wallet, the funds cannot be recovered.
Not for small amounts, but it is widely recommended for larger holdings.
You can, but separating savings from DeFi activity reduces risk.
This page is for educational purposes only and is not financial, investment or tax advice. Crypto assets are volatile; you can lose all of your money.