An annual CNBC survey tracking the use of mobile devices by senior business executives across Europe, Asia and the U.S. revealed that global Android smartphone ownership witnessed a slight decline from 54 per cent in 2014 to 52 per cent in 2015, but remained ahead of the Apple iPhone (49 per cent). The Mobile Elite survey also highlighted that BlackBerry experienced a huge drop from 17 per cent to 8 per cent year on year. In 2015, 91 per cent of global executives claim to access news and business content via their smartphone or tablet. Looking at concerns and priorities for the future, 82 per cent of global executives agree that 'data privacy and security of mobile devices is a growing concern'. Report