Your account contains all of the Monero @transactions you have sent and received. Your account balance is a sum of all the Monero you've received, less the Monero you've sent. When using Monero you may notice that your account has two balances, a locked and an unlocked balance. The unlocked balance contains funds that can be spent immediately, and the locked balance contains funds that you can't spend right now. You may receive a transaction that has an @unlock-time set, or you may have sent some Monero and are waiting for the @change to come back to your wallet, both situations that could lead to those funds being locked for a time.
List of available languages for your wallet's seed: 0 : Deutsch 1 : English 2 : Español 3 : Français 4 : Italiano 5 : Nederlands 6 : Português 7 : русский язык 8 : 日本語 9 : 简体中文 (中国) 10 : Esperanto Enter the number corresponding to the language of your choice: 1 Generated new wallet: 4B15ZjveuttEaTmfZjLVioPVw7bfSmRLpSgB33CJbuC6BoGtZrug9TDAmhZEWD6XoFDGz55bgzisT9Dnv61sbsA6Sa47TYu view key: 4130fa26463d9451781771a8baa5d0b8085c47c4500cefe4746bab48f1d15903 ********************************************************************** Your wallet has been generated. To start synchronizing with the @daemon, use "refresh" command. Use "help" command to see the list of available commands. Always use "exit" command when closing monero-wallet-cli to save your current session's state. Otherwise, you might need to synchronize your wallet again (your wallet keys are NOT at risk in any case). PLEASE NOTE: the following 25 words can be used to recover access to your wallet. Please write them down and store them somewhere safe and secure. Please do not store them in your email or on file storage services outside of your immediate control. aunt knuckle italics moisture hawk thorn iris abort chlorine smog uphill glass aptitude nowhere sewage plywood dual relic fierce divers anvil nodes bubble cabin abort ********************************************************************** Starting refresh... Refresh done, blocks received: 21939 Balance: 0.000000000000, unlocked balance: 0.000000000000 Background refresh thread started [wallet 4B15Zj]: █
Monero relies heavily on a cryptography principle known as *public/private key cryptography* or *asymmetric cryptography*, which is thoroughly detailed in [this Wikipedia article](https://en.wikipedia.org/wiki/Public-key_cryptography).
When you manage your own Monero Account with the private @spend-key, you are solely responsible for the security of your funds. Thankfully, Monero makes it very easy to backup your account. When creating a Monero account for the first time you will be given a unique @mnemonic-seed for your account that consists of 13 or 25 words in the language of your choosing. **This seed is the only thing you need to backup for your account**, and so it is imperative that it is written down and stored securely.Never store this seed in a form or location that would allow someone else to see it!
As the example above indicates, it is incredibly important to store these words in safe locations. If you are concerned about the risk of critical loss at your home, for instance, you may want to store a second copy of your seed with your attorney or in a safety deposit box. It is also recommended that it is stored in a way that does not make it obvious that it is your seed, so writing it into a letter or as part of other notes is advisable.
Over and above backing up your @mnemonic-seed so that you have access to your account in the event of critical data loss, it is also important to practice good security. Use a secure password when creating a local Monero account (not used on [MyMonero](https://mymonero.com) or other web-based account systems).
