Microsoft Sentinel Migration and Modernization

Engagement Overview

Conduct a discovery to better understand the current state of your SIEM. Collect monitoring and alerting use cases and requirements.

Create a comprehensive design that aligns with the current security portfolio and existing data sources.

Implement the design phase: Integrate data sources that will connect to Microsoft Sentinel; ensure that Microsoft Sentinel works as designed.

Operationalize Microsoft Sentinel Investigation and Response within existing security monitoring, alerting, and incident response processes.

Challenges with Legacy SIEMs

While legacy on-premises, hardware-based SIEMs can maintain good coverage of on-premises assets, these architectures may have insufficient coverage for cloud assets, such as in Azure, and other cloud hyper-scalers. SOC teams face a series of challenges when being asked to manage a legacy on-premise SIEMs:

• Slow response to threats: Legacy SIEMs use correlation rules, which are difficult to maintain and ineffective for identifying emerging threats. When a SIEM analyzes data this way, the alert triggers can be delayed, slowing down SOC teams’ ability to respond to critical threats in the environment.
• Scaling challenges: As the volume of data collected increases, Security Teams must plan and invest in increasing infrastructure that requires setup and maintenance, and are often bound by storage or query limits.
• Complex and inefficient management: Security teams are often responsible for managing the SIEM infrastructure, overseeing orchestration and managing connections between the SIEM and various data sources, in addition to performing updates and patches. These tasks are often at the expense of critical triage and analysis, risking the business to being potentially blind to attacks in progress.

Our Approach to Microsoft Sentinel

Our goal is to simplify and streamline the deployment of Microsoft Sentinel so you can have a best-in-class security monitoring solution. Our consulting service is customized based on your needs and can take as little as 2 weeks before Sentinel has visibility into your environment.

• Determine the data sources to ingest, items to migrate, compliance and storage requirements.
• Deploy data connectors, import Analytic Rules and configure UEBA, Watchlists, etc.
• Migrate existing historical logs, dashboards, etc. Setup starter Playbooks, Workbooks, Threat Hunting queries.
• Test the implementation to validate user acceptance based on design.
• Tune analytic rules and alerting processes. Setup retention and archiving, setup cost management.

What to Expect

During this engagement, we’ll partner with you to get Microsoft Sentinel properly designed, documented, configured, deployed and operationalized according to your requirements. During the migration deployment:

• We will work alongside your teams to transfer knowledge on Microsoft Sentinel and document runbooks on how the environment is configured.
• We will provide strategic recommendations from Microsoft experts about your security program specific to Microsoft Sentinel, with key initiatives and tactical next steps.

About Microsoft Sentinel

Microsoft Sentinel is a cloud-native SIEM (Security Information and Event Management) solution that offers intelligent security analytics, threat detection and automation across an organization’s digital estate. Organizations can use it to collect security log data at scale, detect and respond to threats swiftly, and minimize false positives with the help of Microsoft’s advanced analytics and threat intelligence. It seamlessly integrates with other Microsoft security products, providing a unified security operations platform that enhances the capabilities of extended detection and response (XDR) and SIEM for a more robust defense strategy.