tmacshaq You have mnemonic recovery seed while signup and you can view your private key at any time in the Account > Security section.
When you create your wallet, a recovery seed is created. Your wallet is encrypted on your browser with your personal password. Your password acts as your decryption key to both lock and unlock your wallet and nobody cant be accessed without it. Because we don’t know or store your password.
Your encrypted wallet is backed up to our servers when you signup . When you access your wallet with your username, your browser download your encrypted wallet backup from API and decrypting it on your device. This way we need to store your password or private key.
So you are completely safe!