Hot vs. cold wallets
Every wallet is either connected to the internet or not. That one difference decides how convenient it is and how exposed it is.
A hot wallet keeps its keys on a device connected to the internet, like a phone app, browser extension or exchange account. It's convenient but more exposed to hacks, malware and phishing. A cold wallet keeps keys offline, usually on a hardware wallet, so it's safer for savings but slower to use. Many people use both: hot for small everyday amounts and cold for savings.
Side by side
| Compare | Hot wallet | Cold wallet |
|---|---|---|
| Examples | Phone wallet apps, browser extensions like MetaMask, exchange accounts | Hardware wallets, offline signing devices |
| Keys stored | On an internet-connected device or the exchange's servers | On a device that stays offline |
| Cost | Usually free | Roughly $50 to $400 for a hardware wallet |
| Speed | Instant | Plug in or scan, then confirm on the device |
| Main risks | Malware, phishing, fake apps, exchange failure | Losing the device and backup, buying a tampered device, approving a bad transaction |
| Best for | Small amounts you use often | Savings you rarely touch |
Hot or cold is different from custodial or not
A second question is who holds the keys. An exchange account is hot and custodial: the exchange holds the keys for you. A phone wallet app like Coinbase Wallet (briefly called the Base app in 2025 and 2026) is hot but non-custodial: you hold the keys, and it's separate from a Coinbase exchange account. A hardware wallet is cold and non-custodial.
What counts as an "offline" wallet?
What matters is whether the private keys ever touch an internet-connected device. A hardware wallet signs transactions inside the device, so the keys never leave it, even when it's plugged into a computer. Writing your seed phrase on paper or metal is an offline backup, not a wallet you spend from. Typing that seed phrase into a phone or website makes it hot again.
How to choose
- Keep only what you'd be comfortable losing in a hot wallet.
- Buy hardware wallets only from the maker or an authorized seller, never secondhand.
- Write the seed phrase down offline and never type it into a website, chat or "support" form.
- Download wallet apps only from the official app store listing or the maker's website.
- Read every transaction on the device's own screen before approving it.
Frequently asked questions
Is a hot wallet safe?
Reasonably, for small amounts, if your device is clean and you avoid phishing. For savings, a cold wallet is safer.
Is a cold wallet worth it?
If you hold more than you could comfortably lose, a hardware wallet is usually worth its cost.
Can a cold wallet be hacked?
The keys are much harder to steal, but you can still be tricked into approving a bad transaction or revealing your seed phrase. Most losses come from scams, not hacked devices.
Where to next
Sources
- What to know about cryptocurrency and scams (FTC)
- Coinbase rebrands Base App back to Coinbase Wallet (The Block, Sept 2026)
Written for beginners and checked against the sources listed. Last reviewed October 26, 2026. This page is educational and is not financial, tax or legal advice. How we write and check pages.