Why we keep getting hacked

First Optus, then Medibank. Millions of us have had our private data stolen, exposing us to identity theft and fraud. Now criminals even have our medical records. Today, cryptographer, Vanessa Teague on why Australian laws are leaving consumers so vulnerable and why it won't be long before the next big data breach.  Featured: Dr Vanessa Teague, Adj. Associate Professor, College of Engineering and Computer Science, Australian National University