So you’ve bought your first crypto, now the big question is: where do you keep it? That’s where wallets come in.

What a Crypto Wallet Really Is?

A crypto wallet isn’t like the one in your pocket where you keep your cash. Contrary to belief, crypto wallets don’t actually hold your coins. All crypto coins live on the blockchain, which is basically one giant record book (a ledger) that everyone shares.

Crypto Wallets
A Look at Some of the Popular Hardware Wallets on the Market. Source: Shutterstock

Imagine the blockchain is a single, massive, public bank ledger (like a spreadsheet) that everyone in the world shares. This sheet lists every crypto address on that network and its balance.

As the wallet doesn’t hold the crypto coins themselves, it stores your Private Key. Think of this key as the password required to sign a check against your balance on the spreadsheet. When you “send” Bitcoin, the coin doesn’t physically travel; your wallet uses your Private Key to digitally sign a message that says, “Deduct X from my address and add X to the recipient’s address.” The network verifies this signature and updates the shared ledger.

Think of your private key as the PIN or password to your bank account, but with no “Forgot Password?” button if you lose it. 

Hot Wallets vs. Cold Wallets

You’ll hear about two main types of wallets: hot and cold.

  • Hot wallets, often referred to as software wallets, are wallets that are connected to the internet. These can be mobile apps, browser extensions, or wallets built into exchanges like Binance. They’re super handy for quick access and everyday use. They can connect instantly to online decentralized applications (DApps and DEXs) for frictionless use. The trade-off is that because they’re online, hackers have more ways to try to break in, and users can lose the crypto in their hot wallets as a result of phishing attacks. You can learn more about it in our ‘What are hot wallets’ guide.
  • Cold wallets, often referred to as hardware wallets, are offline wallets with no internet connection. These are usually hardware devices that look like USB sticks, small touchscreen devices, or bank cards, while some old-school crypto veterans may even use paper wallets. Hardware wallets are much safer from online attacks as they have zero online connectivity. They are less convenient as users need to dig them out of their hiding places and plug them into a computer or interface with a mobile app to interact with their funds. Think of them as a vault, perfect for storing bigger amounts you don’t plan to touch often. Get to know about these in our ‘top-rated cold storage wallets’ guide.

hot and cold wallet

Difference Between Hot Wallet & Cold Wallet

Below you will find a quick comparison between the two types of wallets.

Feature Hot Wallet Cold Wallet
Connection Always online Offline storage
Accessibility Quick, convenient Less convenient
Security Higher risk (hack-prone) Very secure (offline)
Best For Frequent trading Long-term holding
Examples Mobile apps, web wallets Hardware wallets, paper wallets
Cost Usually free Hardware devices can cost $50-$200+
Backup/Risk Vulnerable to malware, phishing Risk if lost or damaged without backup

An easy way to remember: Hot = convenient but exposed. Cold = secure but less handy. Your private keys are the most important part of crypto ownership, as the saying goes, not your keys, not your coins. And if you’re wondering what private keys are, don’t worry, we’ll explain in the section below.

What is a Private Key and Seed Phrase?

This is the most important part of crypto ownership, so let’s slow down here.

  • Private key: Think of the private key as your secret digital signature. It’s what allows you to send crypto and prove that you’re the rightful owner. If anyone else gets hold of it, they can spend your crypto.
  • Seed phrase: This is usually 12 or 24 random words you’re given when you first set up a wallet. It’s like a master backup. If you lose your wallet or device, you can use the seed phrase to restore access to all your funds.

You may ask – Why protect them at all costs? Because if you lose your seed phrase, your crypto holdings are gone forever. And if someone else gets it, they own your funds. There’s no customer support to call, no password reset, no undo button.

So, rule number one: never share your seed phrase or private key with anyone, ever. Write it down, keep it offline, and store it somewhere safe, known only by yourself or a highly trusted loved one. It is important to understand the difference between public and private keys fully. Check out our Private Key vs Public Key article for a comprehensive exploration.

Beware, a widespread scam that has tricked many crypto users happens when a person reaches out to customer support for a wallet they are using. Scammers often pose as customer support reps from a reputable wallet company and will say you need to give them your private keys or seed phrase so they can help. This is always 100% a scam to steal your crypto; no wallet company support team member will ever ask for this information.

If you want to avoid the hassle of buying a hardware wallet to store your private keys, you may consider non-custodial software wallets like Best Wallet or Zengo, which are free to use, and they don’t keep your private keys. If you are in the market for a wallet, feel free to read our review of the Best Crypto Wallets to find the right one for your needs.

We also have our YouTube video where we break down our favourite crypto wallets, both free software wallets and hardware wallets, to help you choose.

Please check out our Ultimate Guide to Crypto Safety to learn how to keep your crypto safe and secure.

Chapter Quiz

Crypto Wallets

Module 3, Chapter 2- Understanding Your Crypto Wallet

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What does a crypto wallet actually store?

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What is one key difference between hot wallets and cold wallets?

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Why is protecting your private key and seed phrase so critical?

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Which of the following best describes the main trade-off between hot and cold wallets?

5 / 8

What is a seed phrase in the context of a crypto wallet?

6 / 8

Private Keys:

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7 / 8

Cold Wallets/Hardware Wallets

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How Wallets:

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