My website is hosted on my own dedicated server. I have over 300 users on my forum. One of the moderators account got hacked through his personal email address. The hacker's in this case used his account to delete over 500 topics and important information from my forums. The same IP's which are recorded in logs on my website of having done so are also attacking other services I host. What legal action can I take to not only make them stop but to recover what I have lost in content. ( no backups are available unfortunately for the content that was lost). Server is hosted in New York city