You may change your cPanel password as follows.

  1. Log in to your cPanel, using your main FTP Username and Password.
  2. Click on your username at the right upper corner. Go to Password & Security to change the passwordcpanel password
  3.  You will see Change Password option, click on it
  4. Enter your current password in the old password field.
  5. Enter your current password in the new password field, again enter the new password to confirm the new Password.
  6. At last click on Change your password Now button.
    Note:It will only accept secure passwords.

    Change your cPanel Password