Database administrators should use the following guidelines to keep passwords secure.
MySQL stores passwords for user accounts in the
mysql.user table. Access to this table should
never be granted to any nonadministrative accounts.
A user who has access to modify the plugin directory (the value
variable) or the
my.cnf file that specifies
the plugin directory location can replace plugins and modify the
capabilities provided by plugins, including authentication
Files such as log files to which passwords might be written should be protected. See Section 184.108.40.206, “Passwords and Logging”.