# What is the Swiss Cheese Model in industrial cyber security?

The Swiss Cheese Model is a defensive strategy where multiple, distinct layers of security are stacked to ensure that no single point of failure leads to a systemic breach. Each layer, whether it is a network boundary, an identity control, or system hardening, has inherent flaws, much like the holes in Swiss cheese. By ensuring these layers are orthogonal and diverse, an adversary who bypasses one layer is still blocked by the next, significantly reducing the overall risk to operational technology environments. You can learn more about how this applies to modern infrastructure in our [pragmatic blueprint for industrial cyber security](https://www.agilicus.com/a-pragmatic-blueprint-for-industrial-cyber-security/).

For more information, see [Industrial Cyber Security Best Practices](https://www.agilicus.com/white-papers/industrial-cyber-security-best-practices/).