Shieldly vs Snyk IaC: AI IAM Reasoning vs Broad IaC Security

Snyk IaC is part of the Snyk developer-security platform. It scans infrastructure-as-code across Terraform, CloudFormation, Kubernetes manifests, and ARM templates against a large rule set, and fits alongside Snyk's open-source, container, and code products. Shieldly is a focused AI-Powered analyzer for AWS IAM, resource policies, and CloudFormation that explains why a specific policy is risky in plain English and hands back the tightened version — free, no signup, at the moment the policy is written. One is a broad multi-format platform; the other is deep on AWS authorization. Teams often run both.

What Snyk IaC Is Great At

Breadth and platform integration. If you already use Snyk for dependencies and code, IaC scanning lives in the same dashboard, the same CLI, and the same policy and ignore workflow. It covers many IaC formats and cloud providers with a maintained rule library, so a single tool can flag misconfigurations across Terraform, Kubernetes, and CloudFormation in one place.

Where Shieldly Fits

Rule-based scanners flag a known pattern. Shieldly explains the why behind an AWS authorization risk and reasons about multi-step privilege-escalation chains inside a single policy — for example a PassRole paired with lambda:CreateFunction — then returns the corrected policy for the engineer in the pull request. There is no account to create to try it: paste a policy into the web app, or run the @shieldly/cli, VS Code extension, GitHub Action, or @shieldly/cdk-guard construct.

Side by Side

Use Both

They overlap a little and complement a lot.

• Use Snyk IaC for broad, multi-format coverage across Terraform, Kubernetes, and other clouds inside one platform.
• Use Shieldly when an AWS IAM or CloudFormation finding needs a plain-English explanation and a corrected policy, or when you want escalation-chain reasoning a per-rule scanner does not provide.
• When a scan flags an IAM policy, drop it into Shieldly for the reasoning and the fix.

AWS and CloudFormation are trademarks of Amazon.com, Inc. Snyk is a trademark of its respective owner. Shieldly is not affiliated with or endorsed by either. Comparisons reflect public information as of 2026 and general product categories.

Amazon Web Services (AWS) is a trademark of Amazon.com, Inc. Shieldly is not affiliated with, endorsed by, or sponsored by Amazon Web Services.