Gartner Research

Selecting and Deploying SaaS SIEM for Security Monitoring

Published: 30 October 2017

ID: G00333861

Analyst(s): Augusto Barros , Anton Chuvakin


SaaS SIEM options are starting to appear in the market, offering credible alternatives to on-premises SIEM. This assessment provides technical professionals with an overview of SaaS SIEM technology, its strengths and weaknesses, and the emerging best practices for its deployment and operation.

Table Of Contents


  • SIEM in Context
  • SaaS SIEM Defined
    • Hosted or Co-managed SIEM vs. SaaS SIEM
    • The Difference Between SIEM and MSS/MDR
  • Deciding Whether SaaS SIEM Is Best for You
  • Identifying Notable SaaS SIEM Use Cases
  • Deploying SaaS SIEM
    • Verify and Establish SaaS SIEM Prerequisites
    • Review Emerging SaaS SIEM Vendors
    • Review Other Clients' Experiences With SaaS SIEM
  • Future Direction
  • Strengths
    • Simplicity of Deployment and Operation
    • Always-Current Capabilities
    • Close Vendor Support and Monitoring
    • Beneficial Economics
    • Cloud-Native Functionality
    • Easier Managed Service Enablement
    • Easier Use-Case Expansion Due to Lack of Hardware Limits
    • Faster Product Improvements, Stemming From the Vendor's Access to Data
    • Superior Model for Centralized Log Management
  • Weaknesses
    • Internet and Connectivity Dependencies
    • Compliance and Trust Issues Related to Data in the Cloud
    • Risks From Pay-per-Use Pricing and Subscription Models
    • Immaturity of SaaS SIEM Solutions


  • Decide Whether SaaS SIEM Is Right for You
  • Evaluate SaaS SIEM Tools
  • Prepare to Deploy SaaS SIEM
  • Carefully Migrate Off Existing SIEM
  • Build an Effective SaaS SIEM Operation
  • Have an Exit Strategy
  • Have a Backup Strategy
  • Identify Circumstances When SaaS SIEM Cannot Be Used

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