Mr. Silva is well known for his work at Verisign as a Chief Technology Officer and Chief Security Officer.<ref>[http://finance.yahoo.com/news/VeriSigns-Ken-Silva-Named-to-iw-516125274.html?x=0 finance.yahoo.com]</ref> He served as its Chief Security Officer for 3 years and then as the Chief Technology Officer for 3 years. He began working at Verisign in 2000.<ref>[http://www.internetretailer.com/2005/04/25/verisign-appoints-industry-veteran-ken-silva-as-chief-security-o internetretailer.com]</ref> He also served as its Chief Scientific Officer.<ref>[http://energycommerce.house.gov/108/Hearings/11062003hearing1124/Silva1785.htm energycommerce.house.gov]</ref> | Mr. Silva is well known for his work at Verisign as a Chief Technology Officer and Chief Security Officer.<ref>[http://finance.yahoo.com/news/VeriSigns-Ken-Silva-Named-to-iw-516125274.html?x=0 finance.yahoo.com]</ref> He served as its Chief Security Officer for 3 years and then as the Chief Technology Officer for 3 years. He began working at Verisign in 2000.<ref>[http://www.internetretailer.com/2005/04/25/verisign-appoints-industry-veteran-ken-silva-as-chief-security-o internetretailer.com]</ref> He also served as its Chief Scientific Officer.<ref>[http://energycommerce.house.gov/108/Hearings/11062003hearing1124/Silva1785.htm energycommerce.house.gov]</ref> |