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Explore how to protect open source communities while preserving their foundational values in this 37-minute conference talk from 39C3. Examine the evolution of threat models facing open source software communities from the 1990s to 2025, analyzing how dramatically changed internet connectivity, accessibility of development tools, and the massive economic value of open source have created new vulnerabilities. Learn about the Four Freedoms and Four Opens that define open source principles, and understand why cultural norms developed decades ago may no longer adequately address current security challenges. Discover how limited connectivity and technical barriers once provided natural protection, contrasting with today's always-online environment where anyone can easily access and potentially disrupt developer communities through bot armies and AI-powered tools. Understand the shift from open source being a niche movement to becoming a $9 trillion resource, attracting both social and economic motivations for disruption. Gain insights into developing new organizational threat models that balance protecting communication infrastructure with maintaining the collaborative spirit essential for open source growth. Consider strategies for introducing responsible friction that safeguards communities without compromising the accessibility and openness that makes open source valuable, preparing for the ongoing challenge of building secure yet welcoming environments for developers worldwide.
