Episode Description:
In this episode of ClearTech Loop, Jo Peterson sits down with John Carse, Field CISO at SquareX and former CISO at Dyson and Rakuten, to talk about why modern CISOs must move beyond fear, uncertainty, and doubt — and start quantifying risk in business terms.

Carse explains how two levers — risk appetite and budget alignment — determine every security decision, and why the browser has become the new edge of enterprise risk. From AI prompt attacks to malicious extensions, Carse offers a practical blueprint for translating security posture into measurable business impact.

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Key Topics Covered:

• Why “talking dollars, not FUD” earns board trust
• The connection between risk appetite and budget allocation
• The browser as the modern enterprise perimeter
• How the Field CISO role bridges business and technology
• Practical ways CISOs can quantify risk and value

About the Guest:
John Carse is a three-time CISO and currently serves as Field CISO at SquareX, helping enterprises defend against browser-based threats and translate security strategy into business impact. His previous roles include CISO positions at Dyson and Rakuten and security leadership at Expedia and JPMorgan Chase.

Additional Resources

• Security Magazine: John Carse hired as Field CISO at SquareX
• The CISO Perspective with John Carse Podcast
• The Browser Blind Spot: Rethinking Enterprise Security

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