Loosing your domain name.
When you are registering a domain name as a webmaster you must be very careful at the time of registering. First of all make sure your domain name's spelling is correct. Secondly select the desired domain extension as .com, .org or any other you wish. Like wise you must give your original and primary email address. Because when the domain is going to expire or any legal notice will be sent to this email. If you didn't respond to the mail you may loose your domain. That's why it is important to use your primary email as it will help you to view the notices in time and you can take necessary actions. Also you must know that when registering the domain don't forget to give your true contact information like address, phone number. Failure to do so may end in loosing your own domain.
HTML Framer Trojan
Loosing Your Domain Name
Hosting Company Missing
Loosing Data
Loosing Usernames Passwords
Caring your Data Base

