Palo Alto Networks Cortex Cloud API Security vs Tetragon

Palo Alto Networks Cortex Cloud API Security discovers, ranks, and protects APIs across cloud environments. It can find and validate APIs across gateways, workloads, and cloud environments, including shadow, zombie, and unmanaged APIs. Configuration and traffic context inform risk rankings based on severity and potential business impact. Risk insights cover internet exposure, sensitive data transmission, weak authentication, missing encryption, and specification drift. The product describes real-time protection against OWASP API Top 10 threats, including injection, authentication bypass, and data exposure; teams can use monitor or blocking modes. Agentless integrations are listed for AWS API Gateway, Azure APIM, GCP Apigee, and Kong. Linux workload protection uses an agent and is marked Beta. Teams can import OpenAPI specifications to check live traffic for deviations and scan for misconfigurations or vulnerabilities. Azure APIM integration requires the Data Collection add-on and a running Azure APIM service. Cortex CLI scans require an OpenAPI file and Java 11 or later, while Web and API Security requires the Runtime Security add-on. Pricing is on request; the product page offers a demo request.

Tetragon is a Kubernetes-aware security observability and runtime enforcement tool for Linux, container, and Kubernetes workloads. It uses eBPF to monitor activity, filter events, and enforce policies in the kernel in real time. Process reports can include executed binaries, command-line arguments, user IDs, parent processes, and start times. Tetragon also monitors file access and changes, and can block unauthorized file operations at the kernel level. Kubernetes policies can filter activity by namespace, pod labels, and container fields, with support for containerd and CRI-O. Network visibility ties events to processes and workloads and tracks connections, socket lifecycle, and bytes sent or received. The tool also monitors credential changes, kernel module activity, and eBPF program loads and interactions. Findings are available as JSON logs or through gRPC. Installation options include Helm on Kubernetes, released Linux packages, and a container image. Tetragon is a Cilium sub-project and a CNCF project, and is available as an open-source project with no paid plans listed.