A cold wallet is a way of storing the private keysPrivate keyA secret number that proves you own the crypto in your wallet. Whoever holds the private key controls the crypto. to your crypto somewhere that never connects to the internet. Because the keys aren't on an online device, hackers on the internet can't reach them. That makes a cold wallet a good fit for crypto you plan to hold for a long time and rarely move.
What are the options?
A cold wallet is more a method than a single product. The most common options are:
- A hardware walletHardware walletA small device that keeps private keys offline and signs transactions inside the device, so the keys never reach your computer or phone., a small device that stores the keys and signs transactions without the keys ever leaving it.
- A computer that never goes online, mostly used by experienced users.
- A paper wallet, where a key is printed on paper. This has become rare, because it is easy to get wrong.
You can still receive crypto into a cold wallet at any time, because the wallet addressWallet addressA string of letters and numbers you give out to receive crypto, much like a bank account number. is public. The key is only needed when you send crypto out.
Pros and cons
A cold wallet is like a safe at home, and a hot walletHot walletA crypto wallet on an internet-connected device such as a phone or computer, convenient for everyday use but more exposed to attacks. is like the wallet in your pocket. The safe is more secure, but getting things out of it takes longer.
A cold wallet protects you against online attacks, but not against everything. If the device breaks or goes missing, you need your seed phraseSeed phraseA list of 12 or 24 words that backs up every key in your wallet, so whoever has the words can restore the wallet and take the crypto. to get your crypto back. And if someone tricks you into revealing the words or approving a fraudulent transaction, being offline won't help. Keep the words somewhere safe, ideally in more than one place.
Everything in Myntkaup Learn is written and regularly reviewed by the Myntkaup editorial team. It is for education and is not investment advice. Editorial policy. Updated 18 October 2026.