Today I got a message when I logged on the server:
Hi, please view: http://pastie.org/private/tlixxvclirxmut6djqyacq for further in formation in regards to your files!
Text from link:
Your server has been hacked and your files have been deleted.
Before they were deleted, we backed them up to a server we control.
You must send a total of 3 BTC to the address: 1M71Lt6RtrdwB43UFWZCBt8FQ7dMqjqNsd
Failure to do so will result in your files being deleted after 5 days.
We may also leak your files.
You can e-mail firstname.lastname@example.org for support. We will not give any files before a payment has been made.
Can I restore my files? And How can I protect myself against this in the future?