Liquid is an asset verification platform that is tamper-proof and globally identified. Tamper-proof means the asset balances are retrieved directly from the provider (e.g. Coinbase...) and cannot be tampered with. Globally identified means an account balance can only be owned> by one user and cannot be used> in multiple Liquid accounts.
Liquid never asks you for usernames or passwords. You will log into your accounts directly and oauths tokens are used to access your accounts.
Liquid uses message signing technology. Liquid will ask you to sign a message using your wallet address. We will use that signature to ensure that you are the owner of the wallet. Liquid will never ask you for private keys.