Wallets and transaction basics

A crypto wallet does not hold crypto.

It holds the key that proves you control crypto. The assets live on the blockchain. Your wallet is a keychain. That single sentence, held seriously, prevents most early confusion.

There are three practical wallet categories. Hardware wallets (Ledger, Trezor) keep the key on a device that never connects to the internet, the safest option for anything you do not need to touch every day. Mobile wallets store the key on your phone, convenient and exposed to whatever your phone is exposed to. Web wallets (MetaMask and similar) live in your browser, the most convenient and the most vulnerable to phishing and malicious extensions.

A few habits cover most transaction safety. Write your seed phrase on paper the moment it is generated; never photograph it, never store it digitally. Verify every receiving address character by character, not just the first and last few. Before any large transfer, send a small test transaction and confirm it arrives on the correct chain. Always keep a small balance of the native token (ETH, BNB, SOL) in any wallet you use; you cannot pay gas in the token you are moving.

Crypto transactions are final the moment they confirm. There is no dispute team, no recall, no support line that can reverse a sent transaction. That finality is the feature. It is also the responsibility.