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Hot Wallet vs Cold Wallet: Definition & When to Use Each
A hot wallet is a crypto wallet whose keys live on an internet-connected device (phone, browser, computer), which makes it convenient for everyday use but more exposed than an offline 'cold' wallet.
Key takeaways
- Hot wallets trade some security for convenience: quick to send, swap and use apps.
- Cold wallets keep keys offline (hardware devices or paper) and are used for long-term savings.
- A common approach is to hold spending money hot and long-term savings cold.
- Both can be non-custodial — hot vs cold is about connectivity, not who holds the keys.
Hot vs cold
Hot wallet: the private keys are on a device that's online — a phone app, a browser wallet, a desktop app. That's what makes them fast and usable with swaps, bridges and everyday payments. It also means malware, phishing, or a compromised device could put the keys at risk.
Cold wallet: the keys are generated and stored offline — commonly on a dedicated hardware device or written on paper. Transactions are signed offline and then broadcast. It's much harder to attack remotely but slower and less convenient for frequent use.
Which should you use?
The right question is "how much, and how often?"
- Everyday use, small amounts, trading, mining payouts you want to swap: a hot wallet
- Long-term savings you won't touch for months: consider cold storage
- Both: many people keep a modest balance hot and the rest cold, the way one carries a wallet but keeps savings elsewhere
Reducing hot-wallet risk
- Keep the device updated and free of untrusted software
- Use a PIN or passkey and require confirmation before sending
- Only enter recovery information into the wallet you trust
- Don't keep more in a hot wallet than you'd be willing to lose to a mistake
Custodial vs hot
Don't confuse "hot" with "custodial". A hot wallet can be fully non-custodial — you hold the keys — while an exchange account is custodial whether the exchange stores coins hot or cold.
A sensible split
A practical rule is to keep in a hot wallet only what you would be comfortable losing to a mistake or a compromised phone, and to move long-term holdings somewhere harder to reach. Review the split occasionally: as balances grow or shrink, the right amount to keep online changes too.
Example
You keep a few hundred dollars in a mobile wallet for swaps and payments (hot), and most of your long-term holdings on an offline hardware device (cold), moving coins between them only occasionally.
Put it into practice
A hot wallet with safeguards for daily use
Scrypt Wallet runs on Android and the web with keys encrypted on your device, passkey login and PIN-protected send confirmation — convenient for daily use without giving up custody.
Get Scrypt Wallet Get Scrypt for AndroidFrequently asked questions
Is a hot wallet safe?
It can be used safely for moderate amounts with good habits — device security, verified addresses, protected sends — but it's inherently more exposed than offline storage.
Is Scrypt Wallet a hot wallet?
Yes. Scrypt Wallet is a software wallet on your phone or browser with keys encrypted on your device, plus passkey login and PIN-protected sends.
Do I need a cold wallet too?
Not necessarily, but for larger long-term holdings many people prefer offline storage.
Written by the Scrypt Wallet team · Updated 2026-09-29. General education, not financial, tax or legal advice.