Hello, users of Mac, a few days ago I was surprised to find 1500 new photos in my iPhoto library along with more music in my iTunes than I ever downloaded. I was told that I had to turn off my sharing on my computer. Once I did, I could remove the unwanted photos and tunes. Our router for wireless use has a serial number enclosed in brackets-10 digits which is used as a password for 'wired' internet connections.
I tried to remove the photos and tunes on my own but no luck. I finally had to take my computer to the istore. Hope this helps, good luck.