Brandon Donnelly

Sadly, this can very easily happen in the world of crypto. If you connect your wallet to a bad actor and sign a malicious transaction, it is possible for someone to drain all of your assets (coins, NFTs, and so on). It’s pretty terrifying. And I’m sure that a lot of people will see this and say to themselves, “that’s why I don’t like crypto! It’s too risky. Too many scammers. Bunch of rat poison.”

There is no question that crypto is risky. It’s also not very user friendly. Clearly even sophisticated users can get tricked into signing the wrong kind of blockchain transaction. It happens all the time. But this is also a nascent space. And maybe this will become less common in the future as things mature.

Either way, there are things you can absolutely do today to protect yourself if you’re planning to own and do crypto things. One of the most important rules to follow is this one here: you should have at least 3 crypto wallets. Let’s call them cold, warm, and hot wallets (which is often how they are described in web3 land).

A hot wallet is the one you use to connect to sites, mint things, and do whatever else. Because of this, you want to keep almost nothing in it. If you want to mint an NFT, transfer in only whatever crypto is required to complete that transaction. That way if something bad happens, it’s not devastating. Once your mint is complete, transfer out the NFT to a colder wallet.

A cold wallet is essentially your vault. This is where you store your Mona Lisas. These are the NFTs (or whatever else) that you plan to own for the long-term. The only transactions with this wallet should be to move things in and out of it. You should never connect it to any sites/services, even if they’re reputable ones. Once you do that, it’s no longer a cold wallet. It’s now a warmer wallet.

A warm wallet lives somewhere in between. You connect it to sites/services that you trust, and you use it to hold NFTs that you might be looking to sell in the short-term (to give just one use-case example). In my case, brandondonnelly.eth is my warm wallet. It’s where I mint the NFT photography that nobody ever buys.

I realize that all of this probably sounds convoluted, especially to those who are unfamiliar with this space. But in today’s world, if you want to be crypto literate, you need to take things like this into consideration. My NFTs might be finally totally worthless, but I love my growing art collection and I like it being on ice in a vault.