No matter what social media, it is important to be cautious with information, not just pictures. The difference with other social media is that most people block their pages from people outside of who they know. Even then, it is important to be cautious with information. I believe the police in most places even encourage people not to tell a lot of people, even on social media among people you know, when they won't be around or other areas of information. On here in certain parts, anyone can see this information.
You can create a private album on here through Life-bits. The album does have to be approved by a moderator, but you can limit who sees album in its settings.