Falco vs Palo Alto Networks Cortex Cloud API Security

Falco is a free, open source runtime security project for Linux and self-hosted environments. It monitors hosts, containers, Kubernetes, and cloud environments for abnormal behavior, potential threats, and compliance violations in real time. Events are compared with built-in detection rules, and users can create rules for their own environments. Sources include Linux kernel system calls, Kubernetes audit logs, cloud events such as AWS CloudTrail, and events from GitHub and Okta. For kernel event monitoring, Falco uses an eBPF driver by default and offers a kernel module for wider compatibility. Installation options cover Linux hosts, Docker containers, and Kubernetes, including official Helm charts; supported architectures include x86_64 and ARM64. Falcosidekick can forward events to more than 50 systems, including email, chat, message queues, serverless functions, and databases. Falco is hosted by the CNCF as a graduated project. Detection depends on having appropriate rules in place, while resource use varies with server load and workload. The project recommends testing performance in the target environment.

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.