A serious security flaw exists in the hardware at the heart of many of the world's computers. And being hardware, it can't be fixed with a software patch. Dr. Ian Storey says it can give access to supposedly secure areas of microprocessors, where passwords and private keys are stored, thereby threatening safe ecommerce.

The social network stands accused of allowing Cambridge Analytica, a political consulting firm, to use psychographic data to target political and divisive ads on its platform. Congress and the UK's Information Commissioner are looking into whether the data of 50 million Facebook users was illegally used both in the last US presidential election and in the Brexit campaign.

RMIT's Dr. Ian Storey teaches risk and prospect theory. Here he discusses risk assessment for companies, explaining the psychology of risk analysis and how it's not just a matter of maths, there's plenty of psychology too.

Our weekly news round-up: Elon Musk backs #deletefacebook campaign by taking down Tesla and SpaceX pages; Tim Cook tells China Development Forum new regulations are needed to protect privacy online; Australia to deploy wind and solar powered ocean research drones; Great Pacific Garbage Patch far bigger than previously thought; Millions of Spotify users have ad blockers to avoid paying for the service; Smart farms showcased in Sydney; Google Chrome cracks down on autoplay video ads; Samsung Pay connects Australia's big banks into its NFC payment system.

Where do devices like Google Home, Home Pod or Alexa store all the data they collect about your life at home? What protections should exist for users of this technology?

With John's purchases safely landed from America, he concludes his look at the ins and outs of Australia Post's ShopMate service.

Where do devices like Google Home, Home Pod or Alexa store all the data they collect about your life at home? What protections should exist for users of this technology?

Our weekly news round-up: Platypus milk could help battle antibiotic-resistant bugs; Bantu archaeology aids study of gap in Earth's magnetic field; Murchison Radio Astronomy Observatory peers back almost to the time of the Big Bang, shedding light on poorly understood Dark Matter; VR providing the 'gamification of learning'; Kitty hawk autonomous planes to be tested for official certification in NZ; Send your name to the Sun aboard NASA's Parker Solar Probe; Sydney bio-hacker with implanted public transport pass loses court case; Google Maps to include wheelchair accessible routes; Oculus Rift headsets suffer major outage; Uber self-driving car kills pedestrian in Arizona; Facebook shares drop amid concerns of misuse of users' data.

Dr Ian Storey walks us through the late cosmologist's career highlights. He also explains Hawking's strong belief in the benefits of the National Health Service and some of the practical applications of his theoretical work in physics.

Dr Ian Storey walks us through the late cosmologist's career highlights. He also explains Hawking's strong belief in the benefits of the National Health Service and some of the practical applications of his theoretical work in physics.