Extended Detection and Response (XDR) is quickly gaining traction as a next-generation cybersecurity solution, promising a more unified and proactive approach to threat detection and response. But does its rise signal the decline of traditional Security Incident and Event Management (SIEM) systems, or can the two work together to strengthen organisational defences?
XDR integrates data from multiple security layers—endpoint, network, email, and cloud—into a single platform. By correlating this information, it provides more precise threat detection and reduces the time needed to respond. Its ability to deliver actionable insights and automated responses has made it an appealing choice for organisations overwhelmed by the complexity of managing disparate security tools.
However, SIEM remains a critical component of enterprise security. SIEMs excel at long-term data storage, compliance reporting, and detecting complex threats through log aggregation and analysis. Unlike XDR, which focuses on active threats, SIEM provides a broader view of an organisation’s security posture.
The most forward-thinking approach sees XDR and SIEM as complementary rather than competitive. XDR handles real-time detection and response, while SIEM provides historical analysis and compliance assurance. Together, they form a powerful defence against today’s advanced threats, offering both immediate protection and strategic oversight for long-term resilience.