Cybersecurity Awesomeness Podcast · 2026-05-29 · 14 min
In this episode of the Cybersecurity Awesomeness Podcast, hosts Chris Steffen and Ken Buckler revisit a foundational IT principle: the Single Point of Failure (SPOF). Using the mantra "two is one, and one is none," the hosts explore why modern organizations often overlook critical dependencies that, if compromised, can bring down entire systems. The discussion traverses the spectrum from analog to digital, using the infamous train failures at Denver International Airport (DIA) as a prime example of a catastrophic physical SPOF that leaves thousands of travelers stranded. On the technical side, the hosts contrast fragile, linear network designs with the resilient, "spider-web" architecture of the modern internet and the hierarchical, distributed nature of the Domain Name System (DNS). Ultimately, Chris and Ken emphasize that while total redundancy is often cost-prohibitive, effective risk management requires identifying your most critical assets and building deliberate, tiered resilience - ensuring that when a failure inevitably occurs, the entire system doesn't collapse.
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