Prowler vs Prisma Cloud: Open Cloud Security Platform vs Palo Alto's Credit-Based CNAPP

The Fundamental Difference: Open vs Closed

Prowler and Prisma Cloud sit at opposite ends of the openness spectrum. Prowler is an open cloud security platform built on an Apache 2.0 codebase with 14,000+ GitHub stars and 300+ contributors. Every check, every detection rule, every compliance mapping is readable and editable. Prisma Cloud is a proprietary, closed platform from Palo Alto Networks. You consume its findings, but the engine is a black box.

There is one nuance worth being precise about. Prisma Cloud includes Checkov, the open source IaC scanner that came from the Bridgecrew acquisition. Checkov is genuinely open source under Apache 2.0. But Checkov is a standalone command-line tool, not the platform. The product you actually buy, the managed CNAPP with its control plane, dashboards, and runtime, is closed.

That difference matters when an auditor asks how a finding was determined. Prowler users point to the exact Python class and its execute() method. Prisma Cloud users point to documentation. When your team disagrees with a check, Prowler users fork it. Prisma Cloud users file a request.

The Credit Pricing Problem

Prisma Cloud is sold on a credit-based model. You buy Cloud Security Credits, and each module and resource consumes a number of credits based on workload volume. The result is a bill that depends on a moving mix of accounts, workloads, and resources, which is exactly why reviewers on PeerSpot and TrustRadius repeatedly describe credit consumption as hard to predict.

Prowler does the opposite. Prowler Cloud charges a flat price per cloud account, and the open source CLI is free. You can look at your number of accounts and know your cost. There are no credits to model, no per-module multipliers, and no surprise overage when a team spins up more workloads.

• Predictable: per-account pricing means you can forecast spend from your org chart, not from workload telemetry.
• No module upsell: compliance frameworks, IaC scanning, and Kubernetes are included, not separate credit pools.
• No per-user fees: your whole team can use the platform.
• Free to start: the open source CLI is free, and Prowler Cloud has a free trial with no credit card.

Built from Acquisitions vs Built as One Open Core

Prisma Cloud is broad because Palo Alto Networks assembled it from acquisitions. RedLock brought CSPM, Twistlock brought container and runtime security, PureSec brought serverless, Aporeto brought microsegmentation, Bridgecrew brought IaC scanning and Checkov, and Dig Security brought DSPM. That breadth is real, and it is one of the most complete CNAPP module sets on the market.

The tradeoff shows up in the experience. Reviewers frequently describe Prisma Cloud as having a steep learning curve and a somewhat bolted-together feel, since the modules came from different companies. It typically needs dedicated DevSecOps staff to run well. And as of February 2025, Palo Alto announced Cortex Cloud as the next version of Prisma Cloud, so customers are now being steered through another platform transition.

Prowler takes the opposite path. It is one open core that the community extends in a single, consistent pattern. Every check looks like every other check. When Prowler adds a provider like Cloudflare, it ships in the same architecture as AWS, with the same metadata format and the same output schema. There is no integration seam between bolted-on products because there are no bolted-on products.

Cloud Provider Coverage: 16 vs 6

Prowler supports 16 cloud and SaaS providers. Prisma Cloud supports 6 public clouds plus Kubernetes and serverless. The gap is the SaaS and identity layer, where a lot of real risk actually lives.

Prowler coverage depth

• AWS: the deepest coverage of any open source tool, hundreds of checks across 60+ services, and an official AWS Security Hub partner integration.
• Azure: full CIS Benchmark coverage including Entra ID MFA checks, with Bicep remediation code.
• GCP: CIS Benchmark coverage with Cloud Asset Inventory integration.
• Kubernetes: CIS Kubernetes Benchmark at cluster and namespace level.
• Microsoft 365 and Google Workspace: SaaS posture coverage Prisma Cloud's CNAPP does not provide.
• GitHub: repository and organization security checks.
• Cloudflare: 29 checks across DNS, SSL/TLS, WAF, access control, and zone config.
• Plus: Alibaba Cloud, Oracle Cloud, OpenStack, MongoDB Atlas, Okta, Vercel, and more.
• Infrastructure as Code: Terraform and CloudFormation scanning via Trivy.

Prisma Cloud coverage

Prisma Cloud supports AWS, Azure, GCP, OCI, Alibaba Cloud, and IBM Cloud, plus Kubernetes and serverless functions. That is strong IaaS coverage. It also integrates with GitHub and other repositories for IaC and code scanning through Checkov. What it does not give you is posture management for the SaaS and identity layers: Microsoft 365, Google Workspace, Okta, and Cloudflare. Those stay outside the platform.

Customization and AI-Native Extensibility

Prowler is built to be extended. Every check is a Python class with a metadata YAML file, so any security engineer can write a custom check in under an hour. Organizations like Inditex (the parent of Zara), Spain's National Cryptologic Center (CCN), and AWS have contributed to the platform.

• Custom checks via Python: inherit from the Check base class, implement execute(), return CheckReport objects.
• Prowler Studio: an AI assistant that helps create detection checks, generate remediations, and update compliance frameworks.
• Prowler MCP Server (mcp.prowler.com/mcp): exposes Prowler to any MCP-compatible AI agent like Claude Code or Cursor, so teams can query findings, trigger scans, and correlate results.
• Custom compliance frameworks: map any internal policy or regulation to Prowler checks with YAML and track it like any built-in framework.
• OCSF-native output: findings drop straight into any SIEM, SOAR, or data platform that speaks OCSF.

Prisma Cloud offers a policy editor and ships AI security features, and its MCP and agentic AI capabilities live in a separate Palo Alto product line called Prisma AIRS rather than in the CNAPP itself. You can write policies and consume those features, but you cannot read the platform's detection logic or add new provider coverage yourself.

Choose the AI Model That Powers Your Security

Most platforms hand you one AI assistant running one model, take it or leave it, on the vendor's infrastructure. Prowler lets you choose the model behind your AI security workflows. That matters for two reasons: performance, and keeping your data inside your own boundary.

• Best-in-class by default. Your Prowler license includes the top-performing model from OpenAI, so you get state-of-the-art AI out of the box with nothing to set up.
• Bring your own model from Amazon Bedrock. Prefer a different model, or need every prompt and response to stay inside your perimeter? Point Prowler at Amazon Bedrock and run the entire AI workflow within your own security boundary. Your data does not leave your environment. That is a hard requirement for regulated and security-conscious teams, and it is a choice Prisma Cloud does not give you.
• Bring a custom or OpenAI-compatible model via OpenRouter. Run your own fine-tuned model, or any OpenAI-compatible model available through OpenRouter. You are never locked into one vendor's idea of which AI you should use.

Who Should Choose Prowler

Prowler is the right choice for specific teams and situations. Here is who benefits most.

Frequently Asked Questions