From Code to Runtime: Why SAST + DAST Are Both Essential for Modern AppSec

Static analysis alone has never been the full picture, but in modern architectures, that gap is becoming critical. In this SafeDev Talk episode, security leaders and practitioners come together to examine why relying on isolated signals is no longer enough to understand real application risk. The conversation explores how combining code-level analysis (SAST) with runtime visibility (DAST) fundamentally changes the way teams detect, prioritize, and remediate vulnerabilities throughout the software lifecycle. Featuring 𝐂𝐚𝐦𝐞𝐫𝐨𝐧 𝐖𝐚𝐥𝐭𝐞𝐫𝐬 (Director of AppSec & Security Engineering, @CoffeeChaosProdSec), 𝐒𝐚𝐦 𝐒𝐭𝐞𝐩𝐚𝐧𝐲𝐚𝐧 (OWASP London Chapter Leader), 𝐑𝐢𝐜𝐤 𝐌𝐜𝐄𝐥𝐫𝐨𝐲 (CEO, NeXasure), and 𝐋𝐮𝐢𝐬 𝐑𝐨𝐝𝐫í𝐠𝐮𝐞𝐳 𝐁𝐞𝐫𝐳𝐨𝐬𝐚 (CTO, Xygeni – https://xygeni.io/), this session brings together perspectives from practitioners operating across enterprise AppSec, DevSecOps, and real-world production environments. The panel breaks down why many organizations (despite heavy investment in static analysis) still face breaches in production. The discussion goes beyond tooling to focus on context: why vulnerabilities that seem low-risk in code can become critical at runtime, how fragmented signals create noise instead of clarity, and why modern AppSec requires continuous, context-aware validation rather than point-in-time scanning. Rather than framing SAST vs DAST as a trade-off, this episode explores how both approaches complement each other, and what it actually takes to connect signals across code, pipeline, and runtime to identify exploitable risk. ⭐ Key Takeaways • Why code-level visibility alone is insufficient in modern application environments • How SAST and DAST complement each other across the software lifecycle • What types of vulnerabilities only emerge at runtime • How to move from raw findings to prioritized, exploitable risk • Practical approaches to integrating security into CI/CD without slowing developers This episode is highly relevant for professionals working in Application Security, DevSecOps, CI/CD Security, Software Supply Chain Security, and platform engineering teams building and operating modern distributed systems. Takeaway: 𝐌𝐨𝐝𝐞𝐫𝐧 𝐀𝐩𝐩𝐒𝐞𝐜 𝐢𝐬 𝐧𝐨 𝐥𝐨𝐧𝐠𝐞𝐫 𝐚𝐛𝐨𝐮𝐭 𝐦𝐨𝐫𝐞 𝐭𝐨𝐨𝐥𝐬, 𝐢𝐭’𝐬 𝐚𝐛𝐨𝐮𝐭 𝐛𝐞𝐭𝐭𝐞𝐫 𝐜𝐨𝐧𝐭𝐞𝐱𝐭. Subscribe to SafeDev Talks and follow Xygeni   / xygeni   for more expert conversations on AppSec, DevSecOps, and securing modern software from code to runtime. #SafeDevTalks #AppSec #DevSecOps #CyberSecurity #ApplicationSecurity #DAST #SAST #SoftwareSupplyChain #CI/CD #SecurityEngineering #Xygeni