Published Unpublished Images

Searching for an old friend on the Internet, I was surprised to come across old images of mine on Google+ Photos, both published and unpublished, if one can speak of unpublished (since they are published, though most of them unpublished). At any rate, I didn't know that they existed in the public domain. Most of those at the above link would be around ten years old, and give a "snapshot" of life and ministry at that time. OBSERVATION: But actually, what is Google doing publishing unpublished images? Someone else commented: "Yikes!" Their unpublished images were out there, too.