Wallet Address
A wallet address is the public identifier others use to send you crypto. It is derived from a public key and is safe to share.
What Is a Wallet Address?
A wallet address is a short string derived from a public key by hashing and encoding. Others send funds to it; only the matching private key can spend them. Sharing an address is safe, though it lets anyone see that address's history on the blockchain.
Formats depend on the network. Bitcoin addresses start with 1, 3, bc1q or bc1p depending on the script type; Ethereum and other EVM chains use 0x followed by 40 hexadecimal characters, so the same address exists on every EVM chain. Bitcoin wallets generate a new receive address for each payment to limit address reuse.
Transactions to a wrong address cannot be reversed. Address poisoning and clipboard malware rely on look-alike addresses, so checking the full address on the hardware wallet screen matters more than checking the first and last characters.
A public key is a cryptographic key used to receive transactions in a blockchain. It is shared openly, while the corresponding private key remains confidential.
Read full definitionA private key is the secret number that proves ownership of a crypto address and signs its transactions. Whoever has it controls the funds.
Read full definitionA blockchain is a shared, append-only record of transactions kept by many independent computers, so no single party can rewrite it.
Read full definitionBitcoin (BTC) is the first decentralized cryptocurrency, launched in 2009. It uses blockchain technology for secure, peer-to-peer digital transactions without intermediaries.
Read full definitionEthereum is a decentralized blockchain platform that enables smart contracts and decentralized applications (dApps). Its native cryptocurrency is Ether (ETH).
Read full definitionThe EVM (Ethereum Virtual Machine) runs smart contracts on Ethereum and on compatible chains, which share its address format and tooling.
Read full definitionElectrum is a lightweight Bitcoin wallet that allows users to store, send, and receive Bitcoin securely. It is known for its speed and low resource usage.
Read full definitionAddress reuse happens when a user sends multiple transactions to the same cryptocurrency wallet address. This compromises privacy by linking transactions and revealing total balances on the blockchain.
Read full definitionAddress poisoning is a scam where attackers create lookalike addresses to trick users into sending funds to the wrong address, often mimicking a legitimate one.
Read full definitionClipboard hijacking is a malware attack that monitors the clipboard and swaps a user's copied cryptocurrency wallet address with the attacker's address, diverting funds.
Read full definitionReal-World Examples
Example 1: A user copies a bc1q… address from their hardware wallet app and confirms on the device that it matches before sharing it.
Example 2: A user sends USDT to their 0x address on the wrong network; the address exists there, but the exchange that issued it does not credit that network.
A stablecoin is a cryptocurrency designed to maintain a stable value, typically pegged to a fiat currency like the US dollar or backed by reserves.
Read full definitionA crypto exchange is a company that lets users buy, sell and trade crypto and, by default, holds the keys to their coins.
Read full definitionReady to Choose a Secure Wallet?
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