Omkhar Arasaratnam, GM of the Open Source Security Foundation (OSSF), emphasizes the importance of securing open source software as critical infrastructure. The OSSF serves as a platform for collaboration among public and private sectors, along with the community, to enhance the security of open source projects. Their approach involves providing education, developing tools like Scorecard and SigStore, and fostering cooperation to address security challenges, including maintaining the well-being of project maintainers and improving response capabilities to security incidents.