Hello, I upgraded to 1.57C and when i do a database back up using the tools--database backup in the admin area, i get the following warning on the very top of the screen:

0 => mysqldump: [Warning] Using a password on the command line interface can be insecure.

should i be concerned? How to fix?

Thanks. Everything works fine only the ominous warning from the Zen Cart Team... is chilling!