Here are a couple of resources for businesses wondering how to set about protecting themselves from ransomware.
Writing for Bitdefender, Graham Cluley offers The Simple Way to Stop your Business from Being Extorted by Ransomware, instead of simply waiting till you get hit and have to cave in to the extortionist’s demands. His top tips will go a long way towards protecting companies, but many of them also apply to individuals. They will, of course, also help protect against other kinds of malware (and frankly, people and companies should routinely be taking precautions like these).
Kaspersky offers a Practical Guide: Could your business survive a cryptor? I can’t comment on how good it is, since it’s accessed via a form that requires contact information I’m not prepared to give in this instance.