While there isn't one "official" blog post, several high-quality resources break down the ISO/IEC 27031 standard
It allows organizations to measure their readiness in a consistent, recognized way. ISO 27031 vs. ISO 22301: What’s the Difference?
As of May 2025, a major update was released—ISO/IEC 27031:2025—which replaces the original 2011 version to better address modern cyber threats and cloud-based environments. Key Components of ISO 27031
ISO 22301 is the "big picture." It looks at the entire business—HR, supply chain, finance, and operations—to ensure the company survives a disaster.
Relying on blog summaries and third-hand checklists is a recipe for business continuity failure. The ISO 27031 standard PDF is an indispensable tool for any organization serious about staying operational during an ICT crisis.