Antonio Guimaraes is Vice Chairman of ITU-T Study Group 17, and the chairman of WP.4/17 – Application Security. He is graduated in electronic engineering, in 1977, from ITA – Brazil, and has over thirty years of experience in telecommunications and real time software development. After a successful career in big international companies, in April 2005, Antonio joined Anatel, the Brazilian telecommunication regulator. He is now the deputy head of the Office of International Affairs and coordinator of standardization matters
