Jeff Williams CTO Cofounder of Contrast Security and OWASP co-founder on Mythos and AI Security

Jeff Williams CTO Cofounder of Contrast Security and OWASP co-founder on Mythos and AI Security

From Cybersecurity Today by Jim Love

April 11, 2026 · 36 min

About this episode

Jim Love hosts Jeff Williams to discuss AI in application security, OWASP's history, and the future of vulnerability discovery.

AI-Powered AppSec, OWASP Origins, and Anthropic's "Mythos" Model: Jeff Williams on What Changes Next Cybersecurity Today would like to thank Meter for their support in bringing you this podcast. Meter delivers a complete networking stack, wired, wireless and cellular in one integrated solution that's built for performance and scale. You can find them at Meter.com/cst Jim hosts Jeff Williams (Contrast Security co-founder/CTO and former OWASP global chair) for a wide-ranging discussion that begins with Anthropic's new "Mythos" model, described as powerful for finding zero-day vulnerabilities, and expands into how AppSec must evolve. Williams explains Contrast's runtime instrumentation approach, recounts OWASP's early days, the creation of WebGoat and the OWASP Top 10, and notes that many common vulnerabilities persist despite years of maturity models. They debate open source versus commercial security scrutiny, the likely high cost and scalability limits of advanced AI vulnerability discovery, and why finding more bugs matters only if remediation improves too. Williams argues for AI-powered "software factories" with feedback loops, assurance evidence, and runtime monitoring, and…

People in this episode

Guest: Jeff Williams

Topics covered

  • AI-Powered AppSec
  • OWASP Origins
  • Anthropic's Mythos Model
  • Zero-day vulnerabilities
  • AppSec evolution
  • Open source vs commercial security
  • AI vulnerability discovery
  • Software factories
  • EU Product Liability Directive

Keywords

  • Contrast Security
  • runtime instrumentation
  • WebGoat
  • OWASP Top 10
  • security defects

Sponsors

Meter

Mentioned in this episode

Products: Mythos, Origins, WebGoat, Contrast Security

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