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Former Citigroup CISO Blauner on What Makes A Great Security Leader

July 28, 2026 · Dark Reading · Severity: MEDIUM

Former Citi CISO Blauner engages in a wide-ranging discussion on the evolution of the Chief Information Security Officer role, the transformative impact of artificial intelligence on security operations, and the challenges of security leadership in modern enterprises. The conversation covers how the CISO position has shifted from a purely technical function to a strategic business role that must communicate risk in financial and operational terms, while AI introduces both new defensive capabilities and novel threats that require rethinking traditional security architectures and organizational structures.

Key Takeaways

  • The CISO role has evolved from technical overseer to strategic business leader responsible for organizational risk communication.
  • AI is reshaping security operations by enabling defensive automation while simultaneously introducing novel attack surfaces.
  • Effective CISOs must translate technical risk into financial and operational terms that boards and executives understand.
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