Guido Appenzeller is the Chief Product Officer at Yubico where he focuses on product development and strategy to aid in making strong authentication truly ubiquitous.

Prior to Yubico, Appenzeller held several high-level positions including CTO of Cloud and Networking at VMWare, Co-Founder and CEO of Big Switch Networks, and Co-Founder and CTO at Voltage Security. With his vast experience leading companies and teams through high-growth phases, Appenzeller also served as Consulting Professor at Stanford University where he led the team that developed the OpenFlow standard.

Appenzeller was named a top Technology Leader on the MIT TR35, a Technology Pioneer by the World Economic Forum, and one of the 100 Most Intriguing Entrepreneurs by Goldman Sachs. He holds a Ph.D. from Stanford University and M.S. (Diploma) from the Karlsruhe Institute of Technology.