The source code is accessible to everyone. Anyone can review it, copy it, compile it, and run it.
There is no secret behind the project.
There is no central authority involved.
Everything is stored on the blockchain, and it's copied to the peer-to-peer network.
Your wallet address has no information attached to it; you only hold the keys.
Only the person who holds the keys of a wallet can spend that amount.
You can send and receive transactions without an intermediary any time.