The NX bit is not just about security

This article highlights how a low-level ARM hypervisor bug ultimately traced back to cache-coherency and self-modifying code issues, not the obvious security feature being intercepted. For CIOs and technology leaders, the takeaway is that platform-level behavior, firmware, and CPU quirks can create hard-to-diagnose reliability failures that directly affect boot success, system stability, and deployment confidence on heterogeneous hardware. It also underscores that virtualization and security controls can have unintended operational side effects, making rigorous testing on real devices essential before scaling infrastructure changes.