Azure sentinel on premise11/19/2023 ![]() Send alerts and enriched incidents from Microsoft Sentinel to a legacy SIEMĪnalyze some data in Microsoft Sentinel, such as cloud data, and then send the generated alerts to a legacy SIEM. If you want to fully migrate to Microsoft Sentinel, review the full migration guide. Export data from Splunk to Microsoft Sentinel.Migrate QRadar offenses to Microsoft Sentinel.This approach avoids duplicating costs for data storage and ingestion while you move your data sources over. This recommended, side-by-side deployment method provides you with full value from Microsoft Sentinel and the ability to deploy data sources at the pace that's right for your organization. Meanwhile, you can continue deploying data sources over an extended transition period. The team can still access the legacy SIEM for deeper investigation if needed. Forward the alerts from your on-premises SIEM into Microsoft Sentinel to establish a single interface.įor example, forward alerts using Logstash, APIs, or Syslog, and store them in JSON format in your Microsoft Sentinel Log Analytics workspace.īy sending alerts from your legacy SIEM to Microsoft Sentinel, your team can cross-correlate and investigate those alerts in Microsoft Sentinel.Use your legacy SIEM to analyze on-premises data and generate alerts.Ingest and analyze cloud data in Microsoft Sentinel.Send alerts, or indicators of anomalous activity, from your legacy SIEM to Microsoft Sentinel. Send alerts from a legacy SIEM to Microsoft Sentinel (Recommended) Requires SOC staff to be knowledgeable about two different SIEM solutions.Incurs greater staff and infrastructure costs.Splits case management and investigations for multi-environment incidents.Increases complexity by separating analytics across different databases.Saves money compared to your legacy SIEM, by analyzing cloud or Microsoft data in Microsoft Sentinel.Lets you use key Microsoft Sentinel benefits, like AI, ML, and investigation capabilities, without moving completely away from your legacy SIEM.Can require a steep learning curve for SOC staff.Enables your SOC team to quickly downgrade legacy SIEM solutions, eliminating infrastructure and licensing costs.Eliminates having to do analytics between SIEMs, create forwarding rules, and close investigations in two places.Gains deep correlation across all data sources for hunting scenarios. ![]() Gives SOC staff time to adapt to new processes as you deploy workloads and analytics.Deploy and test your content at a pace that works best for your organization, and learn about how to fully migrate to Microsoft Sentinel. Microsoft Sentinel provides pay-as-you-go pricing and flexible infrastructure, giving SOC teams time to adapt to the change. Many organizations avoid running multiple on-premises analytics solutions because of cost and complexity. Typically, organizations who use a long-term, side-by-side configuration use Microsoft Sentinel to analyze only their cloud data.Ĭonsider the pros and cons for each approach when deciding which one to use. ![]() Use a side-by-side architecture either as a short-term, transitional phase that leads to a completely cloud-hosted SIEM, or as a medium- to long-term operational model, depending on the SIEM needs of your organization.įor example, while the recommended architecture is to use a side-by-side architecture just long enough to complete a migration to Microsoft Sentinel, your organization may want to stay with your side-by-side configuration for longer, such as if you aren't ready to move away from your legacy SIEM. Select a side-by-side approach and method This article describes how to deploy Microsoft Sentinel in a side-by-side configuration together with your existing SIEM. Your security operations center (SOC) team uses centralized security information and event management (SIEM) and security orchestration, automation, and response (SOAR) solutions to protect your increasingly decentralized digital estate. ![]()
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