Wallet address
A wallet address is a string of characters people send crypto to, like an account number. It is safe to share, but only the private key gives access to the coins.
How it works
An address is derived from a public key, so each wallet has its own. Formats differ by blockchain: Bitcoin addresses start with 1, 3 or bc1, while Ethereum and compatible networks use 0x followed by 40 characters.
Blockchain transfers cannot be reversed. One wrong character usually means either the transfer is blocked (the wallet spots a bad checksum) or the funds go to someone else forever. That is why you copy addresses instead of retyping them, and check the start and end.
The same 0x address works on Ethereum, BNB Chain, Arbitrum and other EVM networks. That is handy but risky: a coin sent on the wrong network may not show up in your wallet. Always check the network as well as the address.
You withdraw 200 USDT from an exchange. You copy the address from your own wallet, paste it and compare the first 6 and last 6 characters. Before a big amount you send a 10 USDT test, wait for it to arrive, then send the other 190.
The most dangerous mistake is checking only the first couple of characters or copying an address from your transaction history. Scammers create look-alike addresses and plant them in your history. Take the address only from your own wallet or address book, compare it in full or at least the start and end, and send a test for large amounts.
Questions and answers
What is a wallet address in simple terms?
It is like an account number for crypto: you give it out so people can send you coins. Knowing your address does not let anyone take your money.
Is it safe to share my wallet address?
Yes, that is how you get paid. Just remember that anyone with the address can see its balance and full transaction history on the blockchain.
What happens if I send crypto to the wrong address?
Usually it is gone, because blockchain transactions are final. The only real chance is if the address belongs to an exchange whose support agrees to help.
Related terms
Read next
Six settings that close the most common ways exchange accounts get taken over. It takes about half an hour.
Read →How to store your seed phrase and keys: a simple schemeYour seed phrase gives full access to a wallet. Where to keep it and what never to do.
Read →Wallet drainerA wallet drainer is a malicious script on a phishing site that tricks you into signing a transaction or approval, then…
Updated: 2026-10-19