Introduction
After earning money, accumulation is done in wallets, safes and bank lockers. Since cryptocurrency is also a kind of money, it needs to be stored somewhere. But you cannot store it in your physical wallet as this digital currency has no physical existence. Cryptocurrencies are either mined or earned as staking rewards on blockchains. Either way, they end up in a wallet that itself is digital. It the wallet is connected to the internet round the clock, it is a hot wallet. Cold wallets are connected to the internet only when a transaction is to be performed.
What is a Crypto Wallet?
Unlike a regular fiat currency wallet, a crypto wallet does not actually store $BTC, $ETH, $XRP coins. These wallets store the secret keys that take you to the digital ledger. For example, you have bought 1000 $XRP from an exchange but you don’t want to keep the asset in the exchange wallet. You send the coins to another wallet address. You have apparently sent coins but in fact, you have moved the ownership and transaction rights along with the keys. The coins remain on the blockchain as they were.
The credentials associated with a cryptocurrency wallet include an address and a key. The address is a detail visible to everyone. You can understand it like a bank account which can be shared without any harm to the assets inside the account. You can also create more than one address for a wallet. Moreover, a wallet can also be a multi-signature wallet. This kind of wallet needs authorization of two or more signatures to carry out a transaction.
The private key or a seed phrase is the most crucial thing in managing a crypto wallet. If you lose this information, there is absolutely no way to retrieve your assets. You might have heard or read that thousands of Bitcoins are lost forever due to this very reason. In the early years of $BTC, people mined or bought Bitcoins but did not bother to store the keys. Hardly could they imagine that their negligence would cost them millions of dollars. They were actually ignoring digital gold.
Hot Wallets
Crypto wallets that remain online 24/7 are called hot wallets. There can also be subclassifications of these wallets. For example, we have exchange wallets, mobile wallets, browser wallets and desktop wallets.
1. Exchange Wallets
It is quite obvious that exchange wallets are the ones offered by centralized exchanges like Binance, Coinbase, OKX, etc. You must keep in mind that decentralized exchanges do not offer any wallet option. Exchange wallets are also referred to as custodial wallets. This is because you do not have the custody of the private keys of your assets. Instead, you just remember the log in details for the exchange app or site. Even if you lose these credentials, you can retrieve them by following a few simple steps.
2. Mobile Wallets
Although exchange wallets can also be classified as mobile wallets, this category is specially made for those application-based wallets that are non-custodial in nature. For instance, Binance does have their exchange wallet, but they also offer a non-custodial wallet, namely Trust Wallet. Unlike the exchange wallet, such mobile wallets need you to store your keys. Otherwise, you will lose your assets. A few other mobile wallets are Coinbase Wallet, and Metamask Mobile.
3. Browser Wallets
Chrome, Microsoft Edge and other notable browsers offer wallet extensions. Most of these wallets are on Ethereum or Solana chains. Some famous examples of browser wallets are Phantom, Opera wallet, Nami wallet, Coinbase wallet (different from the custodial exchange wallet and non-custodial mobile application), Brave wallet, Rabby Wallet. All these extensions are primarily non-custodial types.
4. Desktop Wallets
These wallets are installed on Windows OS, Linux, or MacOS. Most popular desktop crypto wallets are Electrum, Exodus, Atomic Wallet, Coinomi, Guarda, Ledger Live and Armori. Compatibility varies from wallet to wallet. Before installing and using any of them, do read about the compatibility of coins because it is possible that the wallet may not support your assets.
Advantages and Disadvantages
Hot Wallets are extremely convenient to use as they are already connected to the internet, and you can sell and purchase assets at the current market price. Contrarily, their constant connection is a major disadvantage because they become vulnerable to hackers’ attacks.
Cold Wallets
Cold wallets remain offline and so are keys. They are out of reach of hackers. There are five types of cold crypto wallets.
1. USB Wallets
Ledger and Trezor are prime examples of USB crypto wallets. Outwardly just like a regular flash drive, they have built-in security features inside.
2. Smartcard Wallets
They resemble a debit or credit card from a bank. Most of them have NFC feature which makes them usable with many devices like mobile phones, computers and other communication devices.
3. Bluetooth Hardware Wallets
Looking like a tiny Bluetooth device, they connect to mobile devices and laptops when a transaction is to be performed.
4. Air-Gapped Hardware Wallets
More than crypto wallets, these can be called signing devices because they never connect to the internet. Having steep learning curve, they are not user friendly.
5. Paper Wallets
Popular during 2011 to 2016, the use of paper wallets have lost traction gradually. They are mere pieces of paper with wallet details like addresses and keys.
Advantages and Disadvantages
For whales, cold wallets are the best options as they hold so much that they cannot afford to lose. These wallets are not visible to scammers and hackers.
However, they are inconvenient as you need to connect to the internet every time from scratch and complete a few extra steps to view and interact with your assets. During this time, market may deprive you of the desired profit.
Conclusion
As your physical assets needs a storage, so do the digital currencies. Crypto wallets hold the keys that grant you access to your assets on the blockchain. Hot wallets are convenient to use for always being online but can be exploited by bad actors. Cold wallets are complicated but more suitable for holding large assets.
Frequently Asked Questions
What is the difference between hot and cold crypto wallets?
The key difference lies in internet connectivity. Hot wallets stay connected to the internet at all times. Cold wallets, on the other hand, remain offline and are only connected when performing a transaction.
Are exchange wallets safe for storing cryptocurrencies?
Exchange wallets, also known as custodial wallets, are managed by centralized exchanges like Binance or Coinbase. While they are convenient and allow easy access, users do not control their private keys so the security ultimately depends on the exchange.
Which type of wallet is better for me: hot or cold?
It depends on your needs. If you trade frequently or need quick access to your funds, a hot wallet is practical. However, if you hold large amounts of crypto or plan to store assets long-term, a cold wallet provides superior protection from online threats.
