Executive Summary
Microsegmentation has become a critical security control as enterprises adopt hybrid, multi-cloud, and application-centric architectures. Traditional perimeter-based defenses and coarse network segmentation are no longer sufficient to prevent lateral movement once attackers gain an initial foothold. Microsegmentation addresses this gap by enforcing granular, workload-level access controls that limit communication to only what is explicitly required.
As environments scale and application dependencies become more dynamic, manual policy definition and static rule management have proven difficult to sustain. As a result, microsegmentation is increasingly driven by analytics and AI-assisted policy generation, which help organizations understand traffic patterns, map application behavior, and recommend segmentation policies with less operational friction. These capabilities reduce deployment complexity and make microsegmentation more accessible beyond highly specialized security teams.
Microsegmentation is also emerging as a foundational enabler of Zero Trust architectures. While Zero Trust is not a standalone technology category, microsegmentation provides one of the most effective mechanisms for enforcing least-privilege access and containing lateral movement across workloads, applications, and environments. This ShortList reflects the evolution of microsegmentation from a static network control to an adaptive, intelligence-driven security capability that supports modern Zero Trust strategies at scale.
Threshold Criteria
Constellation considers the following criteria for these solutions:
Core Capabilities
- Policy-based workload segmentation
Defines and enforces granular security policies that control communication between workloads, applications, and services to restrict unauthorized access and lateral movement.
- Dynamic and environment-aware segmentation
Adapts segmentation policies based on workload context, deployment environment, and application behavior across on-premises, hybrid, and cloud infrastructures.
- Automated policy provisioning and enforcement
Automates the creation, deployment, and enforcement of segmentation policies to reduce manual effort and configuration errors.
- Traffic visibility and application dependency mapping
Provides visibility into east-west traffic flows and application dependencies to support accurate policy design and validation.
- Integration with security and infrastructure platforms
Integrates with identity, endpoint, network, cloud, and security tools to support coordinated enforcement and operational workflows.
Differentiated Capabilities
- AI-assisted policy discovery and recommendation
Uses analytics or AI-driven techniques to identify normal application behavior and recommend segmentation policies, reducing reliance on manual rule creation.
- Continuous policy optimization and drift management
Monitors changes in application behavior and infrastructure to suggest policy updates and prevent configuration drift over time.
- Adaptive containment and response
Supports rapid isolation of compromised workloads or segments to limit blast radius during security incidents.
- Zero Trust alignment and least-privilege enforcement
Enables enforcement of least-privilege access principles at the workload and application level as part of broader Zero Trust initiatives.
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Scalability across complex and distributed environments
Demonstrates the ability to operate consistently across large-scale, multi-cloud, and highly dynamic environments without excessive tuning.
The Constellation ShortList
Constellation evaluates more than 34 solutions categorized in this market. This Constellation ShortList is determined by client inquiries, partner conversations, customer references, vendor selection projects market share and internal research.
- Akamai
- Cisco
- ColorTokens
- Elisity
- Illumio
- Zero Networks
- Zscaler
Frequency of Evaluation
Each Constellation ShortList is updated at least once per year. Updates may occur after six months if deemed necessary.
Evaluation Services
Constellation clients can work with the analyst and research team to conduct a more thorough discussion of this Constellation ShortList. Constellation can also provide guidance in vendor selection and contract negotiation.
