One of the most important lessons for newbies to the crypto market is that you must keep track of your secret recovery phrase at all costs, without sharing it with anyone, even if you have several of them. The harsh truth is that, for best results, you are going to need several wallets and thus several seed phrases, even as a beginner, so you better develop a security system that works for you. (I like to write down all my phrases and CEX passwords on a different page of a notebook and keep it inside of a safe, but this is only one secret location for storing phrases, and for best practices you need 2+). Why though? Why must a beginner who just finished reading the Bitcoin white paper and saving Coin Gecko to their browser's bookmarks jump through all these hoops to buy their first Satoshi?
Security Vs Efficiency Or Hot Vs Cold
The simplest reason that a beginner in the crypto ecosystem needs multiple wallets to start trading and holding assets is the staggering difference between "hot" and "cold" storage locations. Whether you are dealing with an exchange (like a Coinbase account) or a software wallet (like MetaMask), you are dealing with hot storage, meaning your crypto is always connected to the internet. Hot wallets are ideal for transacting with low fees and quick loading times, and while trusted hot wallets are rarely at an immediate risk of being hacked, they are always at slightly higher risk than cold wallets. A cold wallet is one which you can load assets onto from exchanges and then disconnect from the internet, like Ledger and Trezor wallets. This maximizes security, but takes marginally more time and money (in the form of higher fees) to move assets around. The answer to this dilemma between security and efficiency is that, in order to maximize both, one must have at least one hot wallet in which they keep funds they plan on trading in the near future, and one cold wallet in which they keep funds they plan on holding in the long term. This is often compared to having a savings and checking account.
Interoperability - Or Lack Thereof
One of the biggest problems in the crypto ecosystem today is interoperability. Interoperability is the ability of different assets and blockchains to work together seamlessly. "Why is this a problem?" you may be asking. The answer is because there is very little of it - we need crypto to be much more interoperable moving forward if we expect mass adoption to take place. A simple example which proves this to be the case is that most serious crypto traders and holders have at least one software wallet on the Ethereum blockchain (such as MetaMask) and at least one on the Binance Smart Chain (such as Trust Wallet or Math Wallet). This is not even to mention the likes of Phantom Wallet on Solana, which is one of my favorite software wallets (drop your personal favorite in the comments section below).
Various Fees And Services Across CEXes
Now that the general concepts of hot vs. cold and Ethereum vs. BSC are out of the way, we are still faced with the issues that cause most traders and holders to be present on multiple centralized exchange (CEX) platforms. For starters, the fees associated with different actions vary greatly from one CEX to the next. This is to say that if your favorite mobile app which is optimized for sending crypto to your friends on a regular basis (meaning you use it like a decentralized Venmo) charges much higher fees to buy stablecoins with USD than another CEX, it will be best practice for you to use both. In this scenario, you would be buying stablecoins with USD on Exchange B, withdrawing it to Exchange A, and then sending crypto to other users from Exchange A, given that the transfer fee across exchanges is negligible for the amount with which you are transacting. This all stands without mentioning the obvious fact that some exchanges may not support your favorite asset or your favorite financial service, such as custodial lending.
Various Rewards And Affiliate Programs Across CEXes
While fees are generally seen as a negative, a necessary evil which we must work to minimize, you can look at this reason for being present on various CEXes in a much more positive light - as an opportunity. Centralized crypto exchanges are a relatively new product/service, and thus many of them have decided to offer quite generous rewards programs to accelerate their adoption. While it is not advised to open up a new account on a new exchange just to get a reward, let alone to garner affiliate commissions, these rewards programs should further convince you to sign up for exchanges you were already considering using.
Bonus: Burners For NFT Security
An additional strategy many NFT holders employ for an added bit of security is to buy new NFTs using a "burner wallet," or an entirely new wallet created for a single use and never used again after they transfer the NFT to their main software wallet. This is just so that one's main wallet on which they hold most or all of their portfolio never has to connect to dApps which the user does not fully trust and is thus never exposed to that security risk.
Conclusion
Whether you are a full-time trader making 6 figures monthly or a middle class Bitcoin maximalist buying $10 worth of Btc each week, you cannot fulfill all your needs with only one crypto wallet. This does not mean you have to have every wallet known to man, but the absolute minimum which even a casual crypto newbie will ever need is one hot wallet for buying and taking occasional profits and one cold wallet for storing long-term holds. And as always, for each new wallet - keep track of your secret recovery phrase and do not share it with anyone.
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