Heads up: AI safety just leveled up. The latest word is that advanced AI systems are now getting serious about defending against prompt injection attacks. The approach? Automated red teaming powered by reinforcement learning—basically, the system trains itself to spot and patch vulnerabilities before bad actors can weaponize them. It's the kind of proactive security move that matters when millions of users are relying on these tools daily. The tech industry's learning that you can't just patch things after the fact anymore.