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> CISO Spotlight: Lefteris Tzelepis on Leadership, Strategy, and the Modern Security Mandate

[SOURCE] Security Boulevard [AUTHOR: Tim Erlin] [DATE: 19/12/2025 13:38] [LANGUAGE: EN]
CISO Spotlight: Lefteris Tzelepis on Leadership, Strategy, and the Modern Security Mandate
Lefteris Tzelepis, CISO at Steelmet /Viohalco Companies, was shaped by cybersecurity. From his early exposure to real-world attacks at the Greek Ministry of Defense to building and leading security programs inside complex enterprises, his career mirrors the evolution of the CISO role itself. Now a group CISO overseeing security across multiple organizations, Lefteris brings a [...] The post CISO Spotlight: Lefteris Tzelepis on Leadership, Strategy, and the Modern Security Mandate appeared first on Wallarm. The post CISO Spotlight: Lefteris Tzelepis on Leadership, Strategy, and the Modern Security Mandate appeared first on Security Boulevard.
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