bifrost security vs Kyverno

Bifrost Security provides runtime security for containerised workloads, using observed behaviour to assess CVEs and generate workload-specific protections. Its agent monitors system calls, file access, signals, capabilities, and network ports at kernel level without requiring code changes. For each CVE, Bifrost reports whether it is reachable, mitigated by a security profile, or never loaded, and provides evidence for the verdict. The agent collects behavioural metadata only; Bifrost says it does not collect application data or personal information. The product can ingest CycloneDX and SPDX SBOMs and rescan them for CVEs across environments. It also creates default-deny AppArmor profiles from observed workload behaviour. Deployment is as a DaemonSet via Helm, with stated resource use below 200 MB RAM per node and below 1% performance impact. Bifrost supports Kubernetes, Docker Swarm, and Nomad workloads. A 14-day trial includes the full Pro edition and requires no credit card. Pricing is on request. The company is based in Stockholm, Sweden.

Kyverno is a free, open-source policy engine for defining and enforcing policy as code in Kubernetes. Its stable policy types can validate, mutate, generate or delete resources, and verify container image signatures and attestations. The Kyverno CLI can test policies against Kubernetes resource manifests in CI before they are applied to a live cluster. Documentation describes use with Helm, YAML manifests, GitHub Actions and GitOps tools such as ArgoCD. Kyverno is installed in a Kubernetes cluster; Helm is recommended for production, and YAML manifests are also available. A standard installation requires an admission controller, while background, reports and cleanup controllers are optional. Production installations should use high availability mode. The project supports CEL-based policy types and describes applying Kubernetes-style policies outside Kubernetes as part of its mission. Its webhooks default to fail-closed, so matching requests can fail if the API server cannot reach Kyverno. The project documents Cosign signatures for images and manifests, and lists CLI binaries for Linux, macOS and Windows.