David G. W. Birch is an author, advisor and commentator on digital financial services. He is an international keynote speaker and recognised thought leader in digital identity and digital money. David is Principal at 15Mb Ltd., his advisory practice, and Global Ambassador for Consult Hyperion, the secure electronic transactions consultancy.

Once named one of the global top 15 favourite sources of business information (Wired magazine) and one of the top ten most influential voices in banking (Financial Brand), he is a contributor at Forbes, a columnist for Financial World magazine.