We can help you decide and show you ways to make it not worth the thiefs time to try. The solutions for static problems are proper grounding of the system. Proper power outlets and things such as static mats under the computer, keyboard and your office chair. A schedule can be set up by your computer which removes much of the hassle of trying to remember when you last backed up. Originally a virus was a piece of rogue computer code, which was inserted into an unused portion of a file.
All computer viruses are man-made.