O'Reilly coauthor of Evidence-Based Security and longtime healthcare CISO Christopher Frenz joins the Nexus podcast to describe his organization's approach to cybersecurity that is rooted in transforming security from an artform to a science. 

Frenz discusses how this process through how he tests the efficacy of controls in his environment, and how the insights gained from this testing have allowed him to move toward better metrics and a better working relationship with leadership and the board. 

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