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GLOSSARY · BLOCKCHAIN & WEB3

Hot Wallet

What a hot wallet is: how an internet-connected wallet works, what it is for, the risks of being online and how to combine it with a cold wallet.

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What is a hot wallet?

A hot wallet is a cryptocurrency storage application or software that remains connected to the internet, allowing the user to access, send or receive digital assets quickly and constantly. It is designed to facilitate frequent operations, such as payments, trading or interaction with dApps, through web browsers, extensions, mobile apps, desktops or API integrations.

Among the most popular hot wallets are MetaMask, Trust Wallet, Phantom or Coinbase Wallet, which can operate on multiple blockchains (Ethereum, Solana, BNB Chain, etc.). Private keys are stored inside the device (in the browser, mobile or local software) and are necessary to sign transactions. This permanent connection to the online environment provides high usability, but also greater exposure to cybersecurity risks, such as phishing, malware, keyloggers, or unauthorized access.

Although some hot wallets allow advanced configuration such as multiple accounts, gas control, connection to hardware wallets (for increased security), or partial signatures (EIP-712), they are still more suitable for active uses and not as long-term storage. Their ideal function is to act as a bridge between the user and the blockchain network to execute fast and precise actions.

In professional environments, it is recommended to complement hot wallets with additional security systems (2FA, secure connections, strong passwords, multiple signatures or integration with cold wallets) and limit the funds held there, keeping only what is needed for day-to-day operations in the hot wallet.

Learn more: Crypto custody providers: institutional solutions and how to choose one

Explained simply

A hot wallet is like a digital wallet that's always connected to the internet so you can send, receive or use your cryptocurrency instantly. It's very practical for everyday use, but being permanently online also makes it more vulnerable to theft if you do not protect it properly.

Hot Wallet: key points

  • It is a cryptocurrency wallet connected to the internet
  • It allows you to send and receive crypto quickly and easily
  • Requires a private key stored on the user's device
  • Ideal for frequent use, trading or interaction with dApps
  • More exposed to attacks than cold wallets

Hot Wallet: advantages

  • Immediate access to funds and real-time operations
  • High compatibility with DApps, DEXs and Web3 platforms
  • Easy-to-use interface for beginners and experts
  • Multi-chain and multi-token: many support different blockchains
  • Easy integration with development and DeFi tools

Hot Wallet: disadvantages

  • Higher risk of hacking and digital theft if it is not properly protected
  • Dependency on internet connection
  • Not recommended for storing large amounts
  • May be vulnerable to malware or social engineering attacks
  • Loss of the device can compromise security if there is no backup