It is always advisable and prudent to secure your data through proper back up and move it offsite. It should be stored offsite so that it can be easily accessed whenever the previous or present data is required.
While restoring the backed up data or while working on such data, the purpose of the exercise should be restoration of data only, because some times the change made by one user may delete some data useful for another user.
Nowadays, there are several trustworthy and highly dependable companies you can approach to secure your backup and ensure recovery of vital information whenever necessary. Several avenues for off site server storage, replication of data centres and other ideas are readily available.
Before you engage a service provider for the task of Data Protection, you need to check the firmís track record. Talk to its existing clients and find out about the quality of their services and infrastructure, such as availability of highly secure locations for backups, proper facilities and adequate servers for safe keeping of data.