Trezor® Hardware® - Wallet (en - US)
Trezor @Wallet* - Trezor @Wallet* - The official wallet - GitBook. An update for Trezor Suite (version 22.9.3) is now ready to install. To download and apply the
Bitcoin-like cryptocurrencies
Like there are many accounts in a wallet, there are many addresses in an account. You can send your coins to any of the addresses belonging to an account, and they will be lumped together under that account, available to spend all together or in parts. (This is in contrast with accounts — you cannot spend coins from two different accounts in one transaction.)
Account 1 sees all the coins sent to any addresses belonging to Account 1 (for a specific currency), but it does not see coins sent to addresses from Account 2.
Bitcoin also has change addresses: any time you send a transaction, all the coins stored in an account are sent together. Some goes to the payee, while the leftover change goes to a new address owned by you. Change is sent to a new address instead of the original one, in order to maintain your privacy. Spending from these change addresses is as seamless as spending from a normal addresses; you won’t see a difference.
By using different addresses for every transaction you are maintaining a high level of privacy, as you make it more difficult to track where your coins go. It is not possible to deduce that this and that address belong to the same account, unless you reveal the account XPUB (extended public key), which lets all addresses to be revealed at once.
Ethereum, Ethereum Classic and ERC-20 tokens
As previously mentioned, technically Ethereum does not have many accounts. Instead, it considers single addresses as separate accounts. This means that there are no change addresses, but also that you cannot send one transaction from multiple addresses.
Moreover, ERC-20 tokens are stored on Ethereum (ETH) addresses. In order to send them, you will need to have Ether available on the same address as the tokens.
Therefore, this simplifies things a little bit — while using Ethereum, only use one address for one account. If you want to separate accounts, use multiple addresses.
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