How many care about the security using Facebook? If you have important data such as your DOB, you should not make them public in FB or other similar media. Extra security reduces the usability of the product. The techies want to show off ignoring what the user really wants.
At one time, before they accepted my new posts in FB, they asked me to check all the pictures related to a topic (using a tiger for illustration). When they displayed two tigers, I did not check it as they asked for one tiger. They told me I was wrong.They should hire at least high school graduates, or it shows the problem of our high school system.