Lets start with the basics. An Stellar account has a public key and a private key.
The public key is like a bank account number. It can be given to anybody who wants to transfer money to you. The privat key should be known only to the account holder. It's like a password which gives you full access to the account and all its values.
Every transaction on the Stellar Network is stored on an distrubuted ledger. This means, it is stored safe and can not be changed.
To create a test account use the buttons below.