Mike Bracken is chief digital officer for the Co-operative Group, the largest mutual cooperative in the world. Previously, he was executive director of digital and chief data officer for the UK government from July 2011 to September 2015. Mike was responsible for transforming public sector services to a “digital by default” model by building and championing a digital culture that puts the user first and delivers the best, low-cost public services possible. Prior to joining the government, Mike worked at Guardian News & Media as digital development director for nearly four years, cofounded e-democracy site My Society, and was a director/shareholder at technical services company Wavex.