Malware on mobiles

16% of mobile phones in emerging markets like Brazil Indonesia, South Africa and Thailand are infected with malware, compared to 2.6% globally, according to a new report by the mobile anti-fraud firm Upstream. The company looked at one billion mobile phone transactions in 23 emerging markets covering nearly 840 million users. One mobile device in Brazil tried to make almost 16000 purchases from an app in just one month. CEO of Upstream Dimitris Maniatis explains their findings.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 BoddingtonStudio Managers: Bob Nettles and Giles Aspen Producer: Ania Lichtarowicz