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Lefteris Sigioltzakis is a seasoned professional in cyber security with extensive experience in service delivery management and threat detection. Currently serving as a Service Delivery Manager at Obrela since January 2021, Lefteris articulates the value of Managed Detection and Response (MDR) services and ensures efficient execution of cybersecurity operations. Previously, as a Threat Detection and Response Analyst, Lefteris played a key role in 24x7 MDR procedures and incident response activities, enhancing threat detection capabilities. Early career experience includes the role of L1 Cyber Security Analyst focused on real-time monitoring and incident investigation. Additionally, Lefteris worked as an Academic Advisor, providing support in academic and IT-related presentations. Educational credentials include a Master of Science in Information Security and Computer Forensics and a Bachelor of Science in Computer Networks, both from the University of East London.