The Best Open Source Security Tools, Delivered Weekly
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What You'll Get Every Week
Our newsletter is crafted for security professionals who want to discover great tools without the noise.
Weekly Tool Discoveries
Hand-picked open-source security tools that our team has tested and verified. No fluff, just tools that work.
New Releases & Updates
Be the first to know when popular tools get major updates or when promising new tools hit the scene.
Domain-Specific Picks
Tools organized by security domain—pentesting, threat intel, DFIR, cloud security, and more.
Quick Start Guides
Each featured tool comes with a brief overview and getting-started tips so you can evaluate it fast.
Sample Newsletter Preview
Here's what a typical weekly digest looks like.
OpenSecAtlas Weekly
Issue #42 • January 2026
This Week's Top Picks
- • Nuclei Templates v9.8 - 500+ new vulnerability detection templates
- • Prowler 4.0 - Multi-cloud security assessment tool
- • Trivy - Container vulnerability scanner with SBOM support
Trending in Pentesting
This week we're seeing a surge in API security testing tools. We break down the top 5 tools for securing your REST and GraphQL endpoints.
New Releases
Major updates to Burp Suite, OWASP ZAP, and Metasploit this week. Here's what's new and how it affects your workflow.
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