Just a while ago, while i was reading some articles about friendster issues. I was stuck on one article which talks about these private photos in friendster. Before there's a big possibility in which these pictures can be seen but even though they are labeled as private photos compared to now. It's because the admins from friendster updated their security against these activity.
But i know some people are still trying to find loopholes in friendster just to see other private photos. There are different techniques and strategies on how to do it especially if you are familiar with the web.
Just a while ago I've met a friend that was able to see a private photos by doing phishing. These technique is another advanced and illegal way of getting an access to someones account. And worst of it, he can do what ever he want on it. And he shares that he was able to see pictures that could be used to blackmail people so it could be an explicit content and whatever photos that would serve as and evidence of an act.
Bottom line, if you don't want to end up with a scandal, better not to post your pictures on the web or anywhere that could possibly be seen by others. Even if you make it private. Because the more you make it private the more others will be curious on looking at it.