MDR is different from SIEM because MDR is a service offering and SIEM (Security Information and Event Management) is a technology software. When paired together, the two can become extremely efficient and effective in improving your security posture. SIEM technology focuses on collecting, aggregating, and analyzing event logs from various sources such as firewalls and endpoint security devices, while MDR focuses on providing 24/7 monitoring and response services. In other words, SIEM is the tool used to identify a threat while MDR is the service that provides the expertise and resources needed to respond quickly and effectively.