Next - Generation SIEM: The Shift Towards Extended Detection and Response (XDR)

Santosh Kumar Kande, Alex Harris

Abstract: The landscape of cybersecurity is rapidly evolving, with traditional Security Information and Event Management (SIEM) systems struggling to keep up with advanced cyber threats across complex, hybrid IT environments. Extended Detection and Response (XDR) has emerged as a transformative solution that integrates detection and response across multiple layers, including endpoints, networks, and cloud services. This paper examines the transition from SIEM to XDR, evaluating the complementary benefits of integrating both systems, the distinct advantages of XDR, and the challenges faced by organizations during adoption. Real - world applications and industry - specific use cases underscore the potential of XDR as an essential component of modern cybersecurity strategies.

Keywords: SIEM, XDR, cybersecurity, detection and response, hybrid IT, multi - cloud