Encrypting your wallet
Before setting a password, your Bisq wallet files are stored on your hard drive unencrypted. That means anyone who gains access to your computer (whether by physically stealing it or by hacking it remotely) can gain access to your private keys and take your bitcoin.
Setting a password encrypts your Bisq wallet files so they’re useless to anyone without the password.
To set a password, go to the Wallet password section of the Account screen and enter a strong password. Do not forget this password, it cannot be reset by anyone and will make your wallet unusable.