Before satellites and machine learning, we crossed oceans with sextants, quadrants, and star charts—tools that worked not because they adapted, but because they were grounded in constants. In today’s fast-shifting cybersecurity landscape, some technologies deserve the same respect. This session explores the enduring value of static, deterministic controls: schema-bound file validation, TPM-secured identities, immutable audit logs, and boundary rules that are still relevant in cloud-native and zero-trust designs. Using patterns drawn from real-world infrastructure, we’ll show how “fixed” tools continue to guide security teams through complexity, quantum disruption, and AI-era uncertainty. With quiet clarity and a few nods to celestial navigation, this talk maps the case for simplicity, reliability, and future-proof engineering that doesn’t rely on constant recalibration.