With AI, the building blocks of the technology stack are changing faster than security models can keep up. New AI services, new agents, new infrastructure primitives are showing up in production environments every week. And the companies building these tools aren't waiting for security teams to catch up. They're embedding security directly into the platform layer, because when you own the environment where the work happens, bolting security on after the fact stops making sense. We're seeing this pattern everywhere, from the code layer to the cloud. The question isn't whether this shift is happening. It's whether your security model is designed for the stack you're actually running, or the one you were running two years ago. This session brings together security leaders and technical operators to dig into what's actually changed underneath us, and what it takes to secure the new building blocks instead of chasing the old ones.