Explore pragmatic approaches to improving intrusion detection systems at scale in this 34-minute conference talk from BSidesSF 2025. Learn why intrusion detection hasn't significantly advanced in the past decade and discover actionable concepts you can implement immediately without relying on AI or next-generation marketing promises. Gain insights into the current state of intrusion detection challenges and practical solutions that address the collective lack of progress in the field, focusing on real-world implementations rather than theoretical or overhyped technologies.