IP addresses need to be blocked so that the website becomes secure. Here is the full guide.  

1. Login to Hosting cPanel using username and password. 
2. Search for ‘IP Block’ in search bar
3. Scroll down to the security section. Select IP Blocker option.       

    4. In the new page, add Domain. Then click ‘add’ button

   5. After redirection to a new page select “Go back” option.

   6. Scroll down to see to see Currently Blocked IP addresses.