Therein lies the problem (fraud?). DDS Safe is endorsed by the ADA but apparently they aren't really taking secure onsite and offsite backups as promised. Otherwise they would have just restored from the backup images. Also, everyone touting "just copy to an external hard drive and disconnect" don't understand the amount of data or the time that that solution will take for a dental office that has digital X-rays, 3D pans, etc. and you can't have enough hard drives to rotate through to protect yourself. We had one office where the ransomware infection slept for 10 days before kicking in (we were able to restore their program volume back 11 days and their data one day before the encryption to recover). Shameless plug: as a provider of backup and disaster recovery solutions for 15 years we can say that doing this properly and in a timely manner is WAY more difficult than it might first appear. Manually making a single copy of your entire server at the end of the day and disconnecting the drive would give you poor coverage (you can lose an entire day's production) and require hours per day to accomplish (many dental offices have >1TB of active data), which most offices are not willing to endure (nobody wants to stay around until 8:00-9:00pm to make the backups and leaving the drive connected makes it vulnerable).
www.timetravelerbackups.com