Gartner Research

Defining Intrusion Detection and Prevention Systems

Published: 20 September 2016

ID: G00310148

Analyst(s): Craig Lawson , Claudio Neiva , Adam Hils


Intrusion detection/prevention systems have evolved to address not just legacy, but also emerging threats, helping avert damage to digital businesses. Security leaders need to understand the current state of IPS/IDS, and use cases that are suitable and unsuitable for this technology to address.

Table Of Contents


  • Definition
  • Evaluation Criteria
  • Description
    • The Prevention or Detection Debate — Detection Still Matters
    • Choosing Between IPS and NGFW
  • Benefits and Uses
    • Virtual Patching of Vulnerabilities
    • Mitigating Targeted Intrusions
    • Addressing the Lateral Movement Problem
    • Adoption Rate
  • Risks
  • Intrusion Detection and Prevention Alternatives

What a Next-Generation Network IPS/IDS Is Not

  • IPS/IDS Futures
    • Machine Learning Holds Value for IPS/IDS
    • Public/Hybrid Cloud Is a Valid Use Case
  • Recommendations
  • Representative Providers

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