It is really important (even critical, imperative, essential, etc…) that you are TODO: new backup link backing up your WordPress data on a regular basis. Internet security is a complicated thing and occasionally hackers find a loophole in WordPress, and sites can be hacked, and in extremely rare cases, deleted.
The WordPress team is very good at getting issues fixed quickly, but by far the best way to protect yourself is to regularly backup both your blog files and your blog database. ProPhoto will automatically remind you to do this unless you choose to disable the reminder:
Email reminders will be sent to you on a monthly basis. Simply go to “ProPhoto” > “Customize” > “Site Settings” > “Misc” and scroll down to the “Backup reminder” if you want to change the Email address to which reminders are sent, or if you want to disable the reminder.