I just reread about cold wallets and there’s really a lot that people don’t understand well. Most believe it’s where coins are stored, but that’s not how it works.

Basically, your cryptocurrencies live on the blockchain. What a cold wallet does is manage your private keys in a completely offline environment. That is, it stores the key pair (public and private) offline, protecting you from malware and hackers. That’s why it’s so much safer compared to hot wallets.

The concept is simple: if you need to make a transaction, you transfer funds from the cold wallet to an active wallet, and from there you interact with dApps. For long-term holding, a cold wallet is practically unbeatable.

Now, what are the most reliable options? Ledger is probably the most popular. It comes in versions like Nano S and Nano X, has an OLED screen, supports multiple coins, and has a compact design. Trezor is another solid option, launched in 2014, with quick setup (15-20 minutes) and quite easy to use. SafePal is also gaining traction, with an intuitive interface and QR code communication, which is an interesting security feature.

The advantages are obvious: maximum security, full control of your assets, portability. The disadvantages too: it’s more expensive (typically between $50 and $250), requires another device for transactions, and you don’t interact directly with dApps.

Most importantly: a cold wallet isn’t foolproof, but it exponentially reduces risks. If you have significant holdings, the investment is worth it. If you only trade actively, a hot wallet is more practical, but for hodling, a cold wallet is what you should be using.