How To change My cPanel password
Your cpanel and FTP login details are same. You can change the cpanel password by following the below procedure,
i)Please use the URL http://servername:2083
ii)If you want to access http://yourdomain.com:2083 to access the cpanel, make sure that the domain name servers are properly pointed to our server.
iiii)Login to your cpanel
iv)Under preferences click on Change password
v) Supply the old password and new New Password
vi)Click on change your password now.
Then you can use the new changed password for both cpanel and FTP.