Hot and Cold Wallets
A hot wallet is connected to the internet and convenient for frequent use; a cold wallet keeps keys offline, such as a hardware device, and is safer for long-term storage.
Crypto wallets face a trade-off between convenience and safety. A wallet on your phone is always ready to trade, but it is also always reachable by attackers. A wallet kept offline is much harder to hack, but slower to use. Most experienced holders use both: a small hot wallet for spending and trading, and cold storage for savings.
- Category
- Cryptocurrency and Blockchain
- Reading time
- 4 min
- Also called
- Hot wallet, Cold storage, Hardware wallet
- Updated
Hot and cold wallets in plain words
Hot wallets are connected to the internet; cold wallets are kept offline.1
Mobile wallet apps make your funds accessible from anywhere.2 Hardware wallets let you keep your crypto offline and are very secure.2
Offline “cold storage” offers the strongest protection for long-term savings.3 See Counterparty Risk.
How to split hot and cold storage, step by step
Decide your hot amount
Keep only what you need for regular use; Bitcoin.org suggests only small amounts on a computer or phone.3
Choose a cold wallet
A hardware wallet keeps keys offline.2
Set it up offline
Initialise the device and write down the seed phrase; it is usually the only way to recover the wallet.2
Store backups safely
Keep the seed phrase in a secure place not connected to the network.3
Move savings to cold
Send a small test, then the rest.
Top up the hot wallet
Move funds from cold to hot only when needed.
Worked examples
Example 1 — A simple split
$600 hot, $11,400 coldYou hold $12,000 of crypto and decide to keep 5% in a hot wallet.
| Hot | $12,000 × 5% = $600 |
| Cold | $12,000 − $600 = $11,400 |
Keeping only small amounts online follows Bitcoin.org’s guidance for everyday wallets.3
Example 2 — A phone is hacked
Loss limited to $600An attacker gets into the phone with your hot wallet.
| Lost from hot wallet | $600 |
| Cold storage | $11,400 untouched |
Cold storage is kept somewhere not connected to the network, out of reach of an online attack.3
Example 3 — Cost of a hardware wallet
≈0.7% one-off costA hardware wallet costs a hypothetical $80 and protects $11,400.
| Cost as a share | $80 ÷ $11,400 ≈ 0.7% |
Hardware wallets keep crypto offline and are very secure.2
Hot vs. cold wallet
| Aspect | Hot wallet | Cold wallet |
|---|---|---|
| Internet connection | Connected | Offline |
| Convenience | High | Lower |
| Exposure to online attacks | Higher | Much lower |
| Best for | Spending and trading | Long-term savings |
When to use each
Daily trading
A hot wallet connects quickly to apps.
Long-term holding
Cold storage for savings.
DeFi use
Hot wallets sign transactions with apps.
Inheritance planning
Cold storage with secure, documented backups.
Advantages and disadvantages
Advantages
- Hot: fast and convenient.
- Hot: easy to connect to apps.
- Cold: keys never touch the internet.
- Cold: highest security for savings.
Disadvantages
- Hot: exposed to malware and phishing.
- Cold: slower to use.
- Cold: devices cost money and can be lost.
- Both: lose the seed phrase and you may lose the funds.
Going deeper
Read as far as you need. Each level builds on the one before it.
Online vs offline
Beginner
Hot wallets are connected to the internet; cold wallets are not.1
Small amounts hot
Intermediate
Common mistakes
Keeping savings in a hot wallet
Leaving large amounts on a phone or browser.
Photographing the seed phrase
Putting cold-storage backups online.
Buying second-hand devices
Using a hardware wallet that could be tampered with.
Never testing recovery
Not checking that the backup works.
Check your understanding
Test yourself before moving on. Each answer comes with an explanation.
Key points to remember
- Hot wallets are online and convenient.
- Cold wallets keep keys offline.
- Keep only small amounts hot.
- Cold storage is best for savings.
- The seed phrase backup protects both.
Frequently asked questions
Is an exchange account a hot wallet?
Can a cold wallet be hacked?
Do I need a cold wallet for small amounts?
Further learning
- Counterparty Risk
Risk of leaving coins with others.
- Exposure
How much is at risk in one place.
- Diversification
Why splitting storage helps.
- Exchange
Where hot balances often sit.
Sources
This article is written in our own words. The sources below support the specific facts, rules and figures marked with a number in the text. Links open the original publisher’s page.
- FINRA. Crypto Assets (opens in a new tab) Checked .
- ethereum.org. Ethereum wallets (opens in a new tab) Checked .
- Bitcoin.org. Securing your wallet (opens in a new tab) Checked .
Educational content, not financial advice. Examples use hypothetical prices and simplified costs; actual fees, margin rules and regulations vary by broker, market and country. We are not affiliated with any publisher linked above. Last reviewed . Report an error or request a source credit.