"One outstanding privacy commentator was Prof Woodrow Hartzog of Samford University, Alabama. Prof Hartzog is the Starnes Professor of Law at Cumberland School of Law, as well as being an Affiliate Scholar at The Center for Internet and Society at Stanford Law School and he spoke about his upcoming book - Privacy's Blueprint: The battle to control the design of new technology.
Prof Hartzog began his presentation with the example of Snapchat- a smart phone application with an invitation by design to send sensitive information. Its picture messages disappear within seconds of the recipient opening them. When Prof Hartzog asked what the purpose of such an app might be, there were delighted calls of "sexting!" from the mostly middle aged scholarly audience."