What is NanoVault?
NanoVault is an open source wallet application for interacting with Nano, which makes it dead-simple to use, and as secure as possible. It is fully client side which means your seed and private keys are generated in your browser and transactions are signed locally. None of your wallet data is ever stored on any server in any format (Encrypted or otherwise).
How does it work?
How is data stored?
By default, your wallet data is stored in your browsers local storage, encrypted by the password you set on your wallet (If desired, you can change the application settings to never store any wallet data). Other data related to the application, such as your settings and address book are also stored in your local storage. They can be cleared completely using the application settings page if needed.
No data at all is ever stored on a server, and only public Nano network transaction information is ever sent across the network.