Intersys has published a guide to ransomware prevention. It provides a complete introduction to how ransomware works,  how you can know if you have been affected, the implications of paying ransoms, ransomware recovery, and some best-practice for ransomware prevention and ransomware data recovery. Some of these tips include keeping software up to date, educating your workforce, controlling user access to your systems and backing up your files. This is, in fact, general cyber security best practice and we would strongly recommend you start reading about best practice. You can do that right now by looking at the wealth of information on our blog.