The Site Manager settings dialogue is displayed. SFTP uses SSH (secure shell) encryption to protect the data being transferred. While FTP is the traditional file transfer protocol, SFTP (Secure File Transfer Protocol) is an alternative to FTP that allows you to transfer files by adding a layer of security to the process.
However, while changing the password of the root user, the account password won't be updated. By default, FTP root accounts are still created in a new account.