Privacy & Confidentiality

Privacy & confidentiality are the important issues for the social media. Since now 90% or even more of us have social media accounts, many of us like to post words or pictures on social media. Every body can see what we posted. If we don't what someone know us or see our pictures, we'd better not post anything. When we think we only share with our friends, actually, our friends of friends can read our postings or see our pictures, too. However, we can also restrict the access to our postings.We can only let our family read or see our postings, or only our friends or only our classmates, but one thing we need to know that our family or our friends may get the postings and re-post them in their accounts. Therefore, I think there is no secret on line.