Mobile phones in emerging markets are infected with malware that carries out financial transactions that the owner of the phone is often unaware of. Dimitris Maniatis, CEO of Upstream, a mobile anti-fraud company is in the show. Tech under the ice sheet The cryoegg, is a small device that monitors the most extreme of environments, streams of ice-cold water flowing under glaciers. It's a rugged device that wirelessly transmits data back to the surface of a glacier from one and a half kilometres below the ice. Dr. Mike Prior-Jones and Dr. Liz Bagshaw from Cardiff University are using the device to monitor glaciers in Greenland. Indoor Solar Cells We live in a world with more and more smart devices in our homes and, of course, all of them need electricity. A potential way to supply that power is via the lights we use indoors. A recent paper shows that there are new, environmentally friendly, and safe materials that could help make this a reality. Digital Planet reporter Florian Bohr found out more. (Image: Getty Images) The programme is presented by Gareth Mitchell with expert commentary from Ghislaine Boddington Studio Managers: Bob Nettles and Giles Aspen Producer: Ania Lichtarowicz