I too had my logbook stolen many months ago, it really made me sick that all my expensive and memorable flight time was taken by some petty lame ass thief. I had been keeping things sort of up to date in an Excel file on my work and home PCs. But they were not totally current. I had to reconstruct much of my previous time by digging up FBO rental history, aircraft logs etc. It took a while, I also had my endorsements and sign offs photo copied so I've got most everything back in order. I did some research and wanted to store my time safely someplace where it could not fall prey to viruses, faulty PCs, fire, theft etc. I found a service online that stores all flight time securely and performs backups each night. I have talked to people at the company and they are great and very helpful. There are about 50 members storing their time as of the last time I talked to someone in support. I can access my logbook data from anywhere and I'm no longer bound to one computer. It is called AvJournal and it is very well designed and easy to use. I update my logbook online about every week and can run many reports and export my whole logbook and print as well. I decided I didn't want to be stuck with or rely on a single computer for my flight data, so far it has served me well. They are going to be creating some needed improvments, but it is worth the $30.00 per year in my eyes. If you are interested in protecting your logbook, check it out.
Jim