Siew-Mun joined Microsoft since 2005 as a Security Solution Specialist for South East Asia. He is previously from Sun Microsystems leading a team of consultants specializing in security has delivered security projects in Singapore as well as Asia South. Before that he was in Lucent where he was the IT Security Manager providing security consultancy to Lucent in the Asia Pacific region. Prior to Lucent, Siew-Mun serves as the Senior IT Security Consultant in the InfoComm Development Authority of Singapore - iSec. In this office, Siew-Mun was responsible in key information security initiatives and development like the conceptualization and formulation of the first Certification Authority in Singapore, provided security consultancy to the Government Electronic Businesses and he is a member of the Government's Emergency Response Team Siew-Mun brings with him more than 10 years of industry experience especially in security and network development. Siew-Mun is also the member for the Security and Privacy Standards Technical Committee (SSTC).