He had absolutely no idea that his creation would be hijacked by big business, encourage tunnel vision, and spread misinformation. Vinton Cerf just wanted to build a medium that allowed for the sharing of useful information. To that end, Mr Cerf and his colleague Bob Kahn at the US Defense Advanced Research Projects Agency came up with both the Internet Protocol (IP) and the Transmission Control Protocol (TCP) in the early 1970s: technologies that underpin – and made possible – the internet.