Withdrawing crypto feels like the easy part. You pick a coin, paste an address, confirm and wait. But this is exactly where people lose money that no support team can get back, because a transfer sent to the wrong network or the wrong address usually can't be undone.

The choice of coins makes the risk higher, not lower. Editors at win.gg on wagering with crypto, in a guide by Simon Day, note that crypto betting sites usually support at least 10 currencies, from Bitcoin and Ethereum to Tron, Solana and stablecoins such as USDT and USDC. More options mean more ways to pick the wrong combination of coin and network. If you're moving winnings from a platform like that to cold storage, here is a careful way to do it. Crypto betting is only for adults, and its legal status depends on where you live, so check the rules in your jurisdiction first.

1. Set up the cold wallet before you withdraw

Don't start the withdrawal and then go looking for a wallet. Set up your hardware wallet first, write the recovery phrase down on paper, store it somewhere safe and offline, and never type it into a website or share it with anyone. A legitimate withdrawal never requires your recovery phrase.

Make sure the wallet supports the exact asset you want to receive, and the exact network it will arrive on.

2. Match the coin and the network, not just the coin

This is one of the easiest mistakes to make and one of the most expensive. Many tokens, especially stablecoins, exist on several blockchains at once. The same "USDT" can be sent on different networks, and the withdrawal page will often ask you to choose one.

The network you choose on the platform must match the network your receiving address belongs to. Some networks share the same address format, so an address can look perfectly valid even when it's on the wrong chain. Researchers at Carnegie Mellon point out that Ethereum, BNB Smart Chain and many related networks use the same address format, which is convenient for users but also makes mistakes harder to spot.

Before you confirm, read three things side by side: the asset, the network selected on the platform, and the network shown in your wallet for that receiving address. If any one of them doesn't match, stop.

3. Get the address from the wallet itself

Always generate the receiving address directly from your wallet and, if it's a hardware wallet, check it on the device's own screen. Never copy an address from an old transaction, a chat message or your platform's withdrawal history.

That last point matters because of a scam called address poisoning. Attackers send tiny or zero-value transactions from lookalike addresses that share the first and last few characters of addresses you've used, hoping you'll copy the wrong one later. A study from Carnegie Mellon's CyLab, presented at the USENIX Security Symposium, found around 270 million address poisoning attempts on Ethereum and BNB Smart Chain, with at least 6,633 successful attacks causing at least $83.8 million in losses. Most wallets only display the beginning and end of an address, which is exactly what these lookalikes exploit, so compare the full address, character by character.

4. Check memos, minimums and fees

Some networks and platforms require an extra field, such as a memo or tag, for certain assets. If your wallet or the platform asks for one, don't leave it blank or guess.

Check the platform's minimum withdrawal and network fee as well. According to win.gg, minimum deposit and withdrawal amounts on crypto betting sites are generally around $10 to $20 in the equivalent crypto, depending on the coin and your location. Network fees also change with how busy a network is, so it's worth checking before you move a small balance.

5. Send a test, then verify again

For any meaningful amount, start with a small test transfer and wait until it appears in your cold wallet. Once it does, send the rest, but generate or check the address again from your wallet rather than copying it from the test transaction. A test only proves the route works if you use the same verified address the second time.

6. Confirm the arrival and keep a record

After sending, use a block explorer for that network to confirm the transaction, and save the transaction ID along with the date, amount and network. If anything goes wrong, that record is the first thing a support team will ask for.

Keep your expectations realistic, though. As the Federal Trade Commission explains in its guide to cryptocurrency and scams, crypto payments typically are not reversible and don't come with the legal protections of card payments. Be wary of anyone who contacts you offering to get lost funds back for a fee; consumer regulators warn that no legitimate company will reach out to you about recovering your money.

After the transfer

Once your winnings are safely in cold storage, think about how you'll use them. If you plan to spend from that balance later, CoinSniper's look at whether crypto cards are worth it covers what to weigh before signing up. And if betting is how those winnings arrived, set a limit for how much goes back in, and treat a cold wallet as a way to protect money, not a way to keep score.

18+ (21+ in some jurisdictions). Gamble responsibly and only where it's legal.