Mid Level Reading
24 May, 2024

Hot Wallet

[ Hot wal-et ]

A hot wallet is an app or platform connected to the internet that allows you to send and receive cryptocurrency.

Yulia Zakharchuk
Written by
Julia Zakharchuk
Yulia Zakharchuk Julia Zakharchuk Expert Author
Julia is a professional crypto and blockchain writer known for her insightful YouTube channel "MoneyFest." She showcases her dynamic presentation skills as a host and moderator at blockchain conferences. Julia drives also business development at ChainUp and advises UNITBOX, an innovative NFT renting protocol. With her exceptional expertise, Julia is a highly valued industry contributor...
Michael Healy
Fact checked by
Michael Healy
Michael Healy Michael Healy Expert Author
Michael, an entrepreneur, and co-founder of Unit, is a full-stack, mobile, and blockchain developer with extensive experience in the crypto and blockchain industry since 2010. A leading token builder, Unit powers the token economy using the Polkadot-powered Unit Network blockchain. Michael has built a diverse portfolio with multiple successful exits, including encrypted P2P video conferencing,...

What is a Hot Wallet?  

A hot wallet is an app or platform that allows you to send and receive crypto. Its function is similar to that of an online banking app. 

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Your crypto hot wallet is a unique address on the blockchain that is always accessible online. It allows you to easily trade, withdraw cash, send, or receive crypto.

Metamask app for sending crypto
Metamask is one of the best-decentralized apps for sending crypto | Source: Metamask 

How Does a Hot Wallet Work?

A hot wallet, meaning an app connected to the internet that stores the keys you need to access your crypto on the blockchain, allows you to send and receive cryptocurrency. 

A key mechanism in hot wallets is public and private keys, which are both random strings of letters and numbers. 

Public crypto keys function as a wallet address, where someone can send you crypto, similar to your bank account number. To better illustrate this concept, here’s an example of sending crypto to a wallet address using a hot wallet like Metamask as an example. 

1. Log in to your hot wallet. Click on the “Send” button. 

Screen showing the Metamask wallet features - buying, selling, swapping, and more
Choose the crypto transaction you need to complete | Source: Metamask

2. Ask the recipient for their public wallet key, starting with “0x” and enter it in the “Send to” field. 

Screen showing how to send crypto on Metamask
Enter the wallet address you’re sending crypto to | Source: Metamask

3. Specify the currency and amount you’re sending, review the fees and details for accuracy, and then complete the transaction.

Screen showing sending crypto through Metamask
Review your crypto transactions before sending | Source: Metamask

Private keys are a secret to you, and you must use them to verify that you’re the sole owner of the wallet. You’re given a secret key when you create your wallet, and you should never share it with anyone for ANY reason. 

Some exchanges also provide crypto hot wallets, such as Coinbase Wallet. There are also dedicated hot wallets like MetaMask or Phantom Wallet, which are not connected to a centralized exchange. 

Hot Wallets: Pros and Cons


  • Free to use, whereas cold wallets cost money 
  • Allows instant and easy crypto transactions 
  • Access your crypto from anywhere 


  • More prone to hacks and security failures than cold wallets  

Hot Wallet Security

The key question is, are hot wallets safe? Generally speaking, yes, they are safe to use, especially if you choose a reputable platform and take the following precautions. 

  1. Save your secret key in a secure location that can’t be accessed, for example, an encrypted password tool like 1Password or on paper kept safe in your home. 
  1. Set up two-factor authentication (2FA). 
  1. Change your password regularly.  

The main security risk of hot wallets is that someone could potentially access them remotely in the event of a data breach or hack.

Like in every piece of software there could be errors in the code creating vulnerabilities that can be exploited by malicious actors or causing a design flaw that can serve as an open door for fraudsters.

(Pokrovsky, 2020).

As long as you follow the recommended security measures mentioned above, the risk of online attacks is quite low. 

Are Hot Wallets Safer Than Exchanges? 

Crypto wallets are considered safer than leaving your crypto assets on an exchange. 

Hot wallets give you full control over your funds and wallet keys, rather than giving exchanges, a third party, control. This is inherently more risky as the exchange owns your wallet keys and data, and if anything happens to the exchange, like a liquidity issue or hack, it impacts your crypto holdings. 

The collapse of FTX and the subsequent $477 million hack demonstrates the need to keep your funds in an independent wallet rather than a crypto exchange.

(Sigalos, 2022). 

Types of Hot Wallets

The key types of software wallets are: 

  • Exchange-specific hot wallets, which live on a crypto exchange for convenience and are either exclusive to the exchange or can be used for holding other funds (i.e, Coinbase crypto wallet)  
  • Blockchain-specific hot wallets, also called ecosystem-specific, store any crypto from a certain blockchain (i.e. MetaMask hot wallet for Ethereum, Bitcoin Core wallet for Bitcoin) 
  • Non-custodial hot wallets generally refer to a wallet separate from an exchange or centralized body (i.e. Trust Wallet supports 70+ networks) 
Coinbase's native hot mobile wallet
Coinbase has a native hot mobile wallet | Source: PCMag

Hot Wallet vs Cold Wallet

The defining feature of a hot wallet vs. cold wallet is that they exist offline and online, respectively. 

A hot wallet is an app connected to the internet that lets you actively use your crypto for transactions. It’s similar to your bank account.  

A crypto cold wallet, or hardware wallet, is a physical device that allows you to access your crypto fully offline. It can be compared to a safe, which stores physical money and valuables, and can only be accessed in person. 

Cold wallets and hardware devices offer better security but you risk losing your funds should anything happen to it.  

How to Transfer from Hot Wallet to Cold Wallet? 

Crypto holdings are transferred between hot and cold wallets through a physical cord or Bluetooth connectivity using a hardware device like Ledger.

Using a cord to connect to the cold crypto wallet is more secure, as even Bluetooth can be intercepted and hacked. 


Hot wallets are a necessary tool in the crypto world, functioning as a storage method and a convenient way to make a cryptocurrency transaction. For maximum security, use a cold wallet to store at least a portion of your digital assets, especially if you own large amounts of crypto. 

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Yulia Zakharchuk
Written by

Julia is a professional crypto and blockchain writer known for her insightful YouTube channel “MoneyFest.” She showcases her dynamic presentation skills as a host and moderator at blockchain conferences.

Julia drives also business development at ChainUp and advises UNITBOX, an innovative NFT renting protocol. With her exceptional expertise, Julia is a highly valued industry contributor and is set to make a lasting impact.

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