Simone Onofri is the W3C Security Lead, playing a key part in the development of technologies to make the Web secure. Simone engages with industry and academic leaders on security issues and trends to identify and cultivate new proposals for standardisation that improve security through stakeholder outreach and consensus-building.

As part of this role, Simone maintains a community of security reviewers to help with security reviews of W3C standards. Simone is also the W3C Team Contact of the Security Interest Group, Web Application Security Working Group, Web Authentication Working Group, and Federated Identity Working Group, and co-chair of the Threat Modeling Community Group

Simone is the liaison between W3C and other Standards Developing Organisations (SDOs), such as the OpenID Foundation (OIDF) and the Internet Engineering Task Force (IETF).