Sergej Kostenko is the CEO and Co-Founder of NoThreat, a UK-based company advancing AI-driven cybersecurity. With over 15 years of experience in cybersecurity and network defense, he focuses on building systems that can detect, adapt, and neutralize threats in real time.

Before founding NoThreat, Sergej led international security projects across Europe and the Middle East, helping enterprises modernize and automate their cyber defense operations. Today, he continues to drive NoThreat’s mission — to make autonomous, research-backed cybersecurity accessible to organizations of every size.