title: Wordpress Site was hacked - No access admin,cpanel
body: <p>someone hacked my wordpress site and I cannot access ftp, cpanel and admin.
  I contacted the hosting company and they send me the new password in order to access via ftp but I cannot access via admin and via cpanel. 
  How can I solve this problem? And How can I prevent this in the future? 
  I saw that there are some plugins like "Better WP Security". Is it enough to prevent future attacks?
  Thanks for your help</p>