What are the main Container & Kubernetes Runtime Security (CWPP) vendors?

Representative vendors include Sysdig Secure, Calico Enterprise (Tigera), Aqua Security, Upwind. B4 Pro scores the full set.

Security & Compliance · Engineering, IT & AI

Should you build or buy Container & Kubernetes Runtime Security (CWPP)?

Container and Kubernetes runtime security software, also categorized as Cloud Workload Protection Platforms (CWPP), monitors containerized workloads in real time to detect anomalous process execution, unexpected network connections, and malicious behavior at the kernel and container layer. It typically covers image scanning, configuration auditing, and runtime detection across Kubernetes clusters in cloud and hybrid environments.

The build-vs-buy decision for Container & Kubernetes Runtime Security turns on whether the CNCF ecosystem's free, production-grade tools cover your threat model adequately, and how much value the commercial UI, managed rule sets, and cloud integrations add on top of what Falco, Trivy, and Kubescape already provide.

Domain: Security & Compliance
Function: Engineering, IT & AI
Industries: Cross-industry

Last assessed June 2026 · re-scored quarterly via The Continuum.

Build it, buy it, or bridge?

	Build it	Buy it	Bridge (buy, then extend)
Cost shape	Falco, Trivy, Kubescape are free; ops and tuning are the cost	Commercial wrappers at $15+/host/mo represent 3-5x cost premium over OSS	OSS detection; buy managed rules and cloud integrations for multi-cloud scale
Time to value	Falco deploys in hours; tuning rules for low false-positive rate takes weeks	Days to deploy with managed rule sets pre-tuned for common workloads	OSS for fast start; add commercial managed rules to reduce tuning burden
Differentiation captured	Custom Falco rules tuned to the org's specific workload behavior	Vendor-maintained detection content updated against current threat intelligence	Platform's managed rules as baseline; custom Falco rules for org-specific workloads
AI feasibility today	OSS tools are production-grade and widely documented; build is mainstream	Commercial platforms add AI-assisted anomaly detection and cloud context	OSS runtime detection; buy AI-powered behavioral analysis for complex multi-cloud
Who it fits	Platform-mature security teams running Kubernetes who can tune Falco rules	Small security teams managing large multi-cloud Kubernetes environments	Teams using OSS for core detection, adding commercial tooling for compliance reporting

The B4 call

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Build, Buy, Bridge, or Beware, with the five-dimension scorecard and the reasoning behind it. Unlock the call, and every other category, with B4 Pro.

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When building Container & Kubernetes Runtime Security (CWPP) makes sense

Building is mainstream in this category. Falco handles runtime detection, Trivy handles image scanning, Kubescape handles configuration auditing, and Tracee provides eBPF-based syscall analysis. All are production-grade, actively maintained CNCF projects, and all are free. Multiple security teams run Falco-based detection in Kubernetes production environments as standard practice. The documentation, community, and example rule sets are extensive. For platform-mature teams that can tune Falco rules, write Trivy policies, and operate the toolchain without a vendor support layer, the OSS path covers the core threat model at no tooling cost. The build case is strongest for teams comfortable operating the control plane directly and who don't need a commercial UI to make the detection data actionable.

When buying Container & Kubernetes Runtime Security (CWPP) makes sense

Buying earns its keep when the security team is small and managing complex multi-cloud Kubernetes at scale, where managed detection rules save meaningful ongoing engineering time. Sysdig Secure and Aqua Security add managed Falco rule sets with threat intel updates, polished dashboards, and cloud integrations that reduce the operational burden of running the OSS stack. For orgs in regulated industries where compliance reporting and audit trails are requirements, the commercial layer provides the formatted evidence that OSS tooling doesn't generate out of the box. The buy case also strengthens when the team needs runtime security as part of a broader CNAPP platform rather than a standalone capability, which changes the cost comparison.

The CNCF ecosystem has made container runtime security a well-documented self-build option. Falco handles runtime detection, Trivy handles image scanning, Kubescape handles configuration auditing, and Tracee provides eBPF-based syscall analysis. All are production-grade and free. Multiple independent security teams run Falco-based detection in Kubernetes today. That's not a theoretical floor, it's mainstream.

Commercial platforms like Sysdig Secure and Aqua Security add managed rule sets, cloud integrations, and polished UI on top of those OSS primitives. Buying earns its keep when the security team is small, the organization is running complex multi-cloud Kubernetes at scale, and managed detection rules save meaningful ongoing engineering time. The build case is strong for platform-mature teams that can run and tune OSS tools directly and don't need the commercial UI layer to operate effectively.

Representative vendors

Sysdig SecureAqua Security and 3 more, scored in B4 Pro

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Frequently asked

What is Container & Kubernetes Runtime Security (CWPP)?: Container and Kubernetes runtime security software monitors containerized workloads in real time to detect anomalous process execution, unexpected network connections, and malicious behavior at the kernel and container layer. It typically covers image scanning, configuration auditing, and runtime detection across Kubernetes clusters in cloud and hybrid environments.
When does building Container & Kubernetes Runtime Security (CWPP) make sense?: Building is mainstream here. Falco, Trivy, Kubescape, and Tracee are free, production-grade CNCF projects. Teams with platform maturity to tune Falco rules and operate the toolchain directly cover the core threat model at no tooling cost.
When does buying Container & Kubernetes Runtime Security (CWPP) make sense?: Buying earns its keep when the security team is small, the Kubernetes environment is large and multi-cloud, and managed detection rule sets save meaningful ongoing engineering time. Commercial platforms also provide compliance reporting artifacts that OSS tooling doesn't generate.
What are the main Container & Kubernetes Runtime Security (CWPP) vendors?: Representative vendors include Sysdig Secure, Calico Enterprise (Tigera), Aqua Security, Upwind. B4 Pro scores the full set.

The B4 Index scores every software category on two axes, strategic differentiation and AI feasibility, to classify it Build, Buy, Bridge, or Beware. See the full methodology.

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