In your case host on secured site - get SSL
Not secure.Most of the website didn't work properly after install the SSL.
Therefore WHMCS is also get hacked................
http://leakster.net/(seized by FBI)
Read Tips in My Blog http://www.realhackers.in
Use very strong passwords with lots of numbers/letter in upper and lower case. The harder the password, the harder it is to hack
lock all and take care of all your passwords...