Risto Kalevi Siilasmaa
(born 1966 in Finland) is the Chairman, founder and former CEO of F-Secure Corporation (formerly Data Fellows), an anti-virus and computer security software company based in Helsinki, Finland.
More recently Siilasmaa has become known as a business angel, investing in several technology startups and serving in their boards of directors.
Siilasmaa is the Chairman of the Board of Directors of Elisa Oyj, Ekahau Inc., and Fruugo Inc. He is a member of the Supervisory Board of Finpro ry and member of the Board of Directors of Blyk Ltd, Mendor, Nexit Ventures Oy and Valimo Wireless Oy.
Source @ Wikipedia
Siilasmaa has a Master of Science degree from Helsinki University of Technology, Department of Industrial Engineering and Management.