Earlier this week, Uber dropped a bombshell by disclosing details of a data breach involving some 57 million user accounts - and then admitting to paying the hackers $US100,000 ($131,170) to destroy the stolen data and keep their mouths shut. Disturbingly, this all happened over a year ago, and as it now turns out, Uber's new CEO, Dara Khosrowshahi, has known about the hacks since he took the helm back in September.