|There are other reasons to be concerned about your irreplacable photos though. |
The most common one is hard drive failure. When that happens you may not be able to retrieve the photos and even if you can it will be expensive.
You should ALWAYS maintain at least TWO copies of ANY files you wish to keep.
I recommend making copies on CDR or DVDR. You can fit a lot of files on on DVDR. Once a disk is made making copies of it to send/store elsewhere is cheap and easy. Making the disk is easy too.
There is really nothing to stop an intruder that gains access to your computer from destroying anything they wish. Who knows why these nuts write destructive programs. I have heard one explanation as "because they can".
Don't be sorry, backup the photos. If you don't currently have a burner drive in your computer you can buy one for about $30 or less. I buy DVDR disks on sale for like $9.99/12.99 for 50 disks.
Pretty cheap insurance if you ask me. When dealing with hard drives the question isn't IF your drive fails but WHEN your drive fails.