Many people tell you to hire an "expert". Be careful, many such security experts are experts in fud and taking the money of clueless frightened people. For a lo

Many people tell you to hire an "expert". Be careful, many such security experts are experts in fud and taking the money of clueless frightened people. For a lot of money they'll run their attack bot on your servers and send you you a twenty pages auto generated report which you will need another expert to read and understand. And security is not a one off task, you need to either not care at all, or make sure everybody cares all the time. While you doing yourself the emergency backup and logs evacuation task, and the password flips, I would suggest to mission your best two hackers on the task of quick learning the basics and making sure there's no obvious hole in the wall.