The best chance for recovery from an encryption virus is a active backup with multiple revisions. InfinIT's monitored offsite backup options cost as little as $.75/GB, and for those with large amounts of static data (pictures, music, videos), we can leverage the power of our Cloud Sync software's backup feature to provide storage space of up to 100GB for as little as $10/month.
The best method of protection from encryption viruses is user education. Most of these viruses install themselves because of direct interaction from users. Maintain good security on your computers and make sure to follow links wisely!