There are so many ways to share on social media today and users, especially the younger generation, are sharing almost everything.  The problem is that some data is not meant to be shared.  A culture of sharing is developing that can be quite harmful for businesses and the confidential information they hold.  It is even more important in this day and age to educate employees on what they can and cannot share.  Consider implementing a social media policy that specifies sharable data and data that must remain confidential along with sanctions for those who violate the policy.  Make sure that all employees are aware of the policy and why it is in place.  Lastly, make sure the policy is enforced through both technical and procedural controls.