Send a small test first, then send the rest

Quick answer: Send a small test amount first. Confirm the network, copy the address fresh from the receiving wallet, and check the whole thing on your device screen. Once the test lands and you can see it, send the rest.

Send ten dollars first. Even if you're moving ten thousand.

That's the whole discipline, and the test send will cost you a second network fee and ten extra minutes. A mistaken send costs you everything in the transaction. Nobody picks up the phone when a blockchain transaction goes to the wrong place. There's no phone. There's no desk it would ring on.

Where the money actually gets lost

Most people picture a mistyped character. That's the least likely way to lose coins. Bitcoin addresses carry a built-in checksum, and most wallets will refuse an address that doesn't pass it. Ethereum-style addresses work the same way in most wallets. A fat-fingered digit usually gets caught before you can hit send.

The expensive mistakes are quieter. Here are the ones that actually happen.

The wrong network. USDC, for example, exists on several networks. Send it on one network to a deposit address that only exists on another, and the exchange may never credit it. Sometimes support can recover it, sometimes they charge for it, sometimes they won't. The address looked perfect. The road was wrong.

A wallet you never backed up. You set up a new wallet, copied its address, sent funds, and never wrote down the recovery phrase. Then the phone dies. The coins are fine. You're locked out of them. That counts as an address you can't access, even though it's yours.

A missing memo or tag. Some coins, XRP and Stellar among them, need a destination tag or memo when you send to an exchange. Leave it off and the exchange can't tell whose deposit it is.

A poisoned address book. More on this below. It's the one that catches careful people.

Clipboard malware. Some malicious software watches for a copied crypto address and quietly swaps it for the attacker's. You paste, and what you paste isn't what you copied.

Before you move anything: prove the destination is yours

If the receiving wallet is new, stop and confirm you hold its recovery phrase on paper, written by hand, stored somewhere that survives a house fire and a nosy houseguest. Never photograph it. Never type it into a website. Never store it in a notes app or an email to yourself. If you want a system for keeping those records straight, the piece on your own filing system being the biggest threat to your crypto covers it.

For a larger amount, go one step further. Restore the wallet from that phrase on a second device before you fund it. If the restored wallet shows the same receiving address, your backup works. If it doesn't, you've just saved yourself everything. It takes twenty minutes and it's the best insurance in this whole piece.

The transfer, step by step

1. Match the network. Open the sending screen and the receiving screen side by side. The asset and the network must be identical on both. If the destination is an exchange, it will tell you which networks it accepts for that coin. Pick one from that list and no other.
2. Get the address fresh. Open the receiving wallet. Tap "Receive." Copy the address from there, right now. Don't pull it from an email, a text message, a chat window, or your own transaction history.
3. Check the whole address. Not the first six and the last six characters. All of it. If you're using a hardware wallet, verify the address on the device's own screen. Malware can alter what your computer shows. It can't reach the little screen on the device.
4. Add the memo or tag if the destination requires one. Copy it the same way.
5. Send the test. Ten dollars' worth, or the smallest amount the network fees make sensible.
6. Wait and verify. Don't trust the sending wallet's "sent" message. Open the receiving wallet and confirm the funds are there, or look up the transaction on a block explorer for that network.
7. Send the rest. Same address, still verified. Then send a final confirmation check on the other side.

Address poisoning, and why "first and last" isn't enough

Here's an attack worth knowing by name. A scammer generates an address that matches the first and last few characters of one you've used before. Then they send you a dust-sized transaction from it, so it appears in your history. Later you go to repeat a send, copy the "recent" address, and paste it. The ends match. The middle doesn't. Your coins are gone.

The defense is boring. Never copy an address from your history. Copy it from the receiving wallet, or from an address book entry you created yourself after verifying it once. And check the middle, not just the ends.

Scammers also prey on people after the fact. If you lose funds and post about it, expect private messages from "recovery specialists." They're the second theft. More on how that works in the crypto scams that catch careful people too.

The annoying parts nobody mentions

You need fees in the native coin. To move a token on Ethereum, you need some ETH in the same wallet to pay the network fee. Plenty of people have a wallet full of tokens and no way to move them. Keep a small buffer of the native coin on every wallet you plan to send from.

Fees swing. When the network is busy, a test send plus a real send can cost real money. If you're moving a small amount, the test might eat a meaningful slice of it. In that case, think about whether the move is worth making at all.

A test send isn't always required. If you're sending again to an address you verified once, saved yourself, and have successfully received at before, the case for another test is weaker. Many careful people skip it for repeat sends of routine size. Nobody sensible skips it the first time.

If you already hit send

First, stay calm. Don't pay anybody who contacts you offering help.

Check the transaction on a block explorer for that network. If it's still pending, some wallets allow replacing or canceling it, but only before it confirms. If it's confirmed, nothing can pull it back. If it went to an exchange on the wrong network or without a tag, contact that exchange's support right away with the transaction ID. Some will help. Be ready for slow answers, a fee, or a flat no.

If it went to a stranger's address, treat it as gone. That's the hard lesson, and it's why the ten-dollar test exists.

One more note. Moving crypto between wallets you own generally isn't a sale, but keep the transaction records anyway and ask a tax professional how your situation is handled. If you're new to all of this, the Bitcoin primer for somebody who skipped the last decade is a decent place to get your bearings.

Ten dollars, ten minutes, one more fee. Pay it every time you're new to a route, and you won't be the person writing a very short post that ends with "any way to get it back?"