Some organizations may want to start small with a specific requirement on TDIR and then plan on expanding their scope to other areas of security operations such as compliance or log centralization. If the functional coverage goes beyond TDIR, for example including centralized storage, or compliance then a SIEM is in order as the XDR may or may not be able to address these additional requirements. If the functional coverage is focused only on TDIR across a heterogeneous stack, then a tool focused on that function (open XDR) might be a better alternative with a shorter time to value than a general-purpose tool such as a SIEM. SIEM and open XDR are best suited for different situations. Which tool do I need for my organization? Typically augments legacy SIEMs, CLMs and/or data lakesĪlthough both SIEM and open XDR do share some characteristics (e.g., both can do TDIR), their design philosophy and core capabilities make them different. In the case of Exabeam Fusion offerings, both Exabeam Fusion XDR and Exabeam Fusion SIEM share some structural components such as our advanced analytics engines and automation framework.

Typically replaces or displaces legacy SIEMs, CLMs and/or data lakes Typically offers prepackaged, use case–specific TDIR with prescriptive orchestration, automation, and playbooks Typically offers very flexible orchestration, automation, and playbooks for TDIR and non-TDIR use cases. Typically offers machine learning-based advanced analytics Typically focuses on correlation-based analytics Typically assumes that data could be stored anywhere and/or doesn’t need to be stored for the long term Typically assumes that the data needs to be centralized in the SIEM – Threat detection, investigation, and response (TDIR)ĭesigned for customization and “just in case” situations The table below captures some key differences between SIEM and open XDR tools. Key differences between SIEM and open XDR Today, we compare SIEM versus open XDR from several different angles. Content as a key requirement for XDR success (for both open XDR and native XDR, as well as SIEM).The difference between open XDR and native XDR.We already covered several XDR topics in previous posts, for example:

The term “security information and event management” (SIEM) was coined in 2005 as an evolution of “central log management” (CLM). Since then, SIEM tools have experienced scope creep and transformed into the tools that we know today, offering many capabilities to solve a very wide set of problems for customers. Gartner has tracked this space in their SIEM Magic Quadrant for more than a decade. On the other hand, “extended detection and response” (XDR) was coined in 2018. XDR tools have been designed with a narrower purpose in mind and have not gone through any scope creep… yet.

Magic engine siem