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open-source cybersecurity tools
Hottest cybersecurity open-source tools of the month: November 2025

This month’s roundup features exceptional open-source cybersecurity tools that are gaining attention for strengthening security across various environments. Heisenberg: …

DeepTeam
DeepTeam: Open-source LLM red teaming framework

Security teams are pushing large language models into products faster than they can test them, which makes any new red teaming method worth paying attention to. DeepTeam is an …

cnspec
cnspec: Open-source, cloud-native security and policy project

cnspec is an open source tool that helps when you are trying to keep a sprawling setup of clouds, containers, APIs and endpoints under control. It checks security and …

Arm Metis
Metis: Open-source, AI-driven tool for deep security code review

Metis is an open source tool that uses AI to help engineers run deep security reviews on code. Arm’s product security team built Metis to spot subtle flaws that are often …

Strix
Strix: Open-source AI agents for penetration testing

Security teams know that application flaws tend to show up at the worst time. Strix presents itself as an open source way to catch them earlier by using autonomous agents that …

Sprout
Sprout: Open-source bootloader built for speed and security

Sprout is an open-source bootloader that delivers sub-second boot times and uses a clean, data-driven configuration format that works across operating systems. “We built …

ProxyBridge
ProxyBridge: Open-source proxy routing for Windows applications

ProxyBridge is a lightweight, open-source tool that lets Windows users route network traffic from specific applications through SOCKS5 or HTTP proxies. It can redirect both …

sqlmap
sqlmap: Open-source SQL injection and database takeover tool

Finding and exploiting SQL injection vulnerabilities is one of the oldest and most common steps in web application testing. sqlmap streamlines this process. It is an …

OpenGuardrails
OpenGuardrails: A new open-source model aims to make AI safer for real-world use

When you ask a large language model to summarize a policy or write code, you probably assume it will behave safely. But what happens when someone tries to trick it into …

VulnRisk
VulnRisk: Open-source vulnerability risk assessment platform

VulnRisk is an open-source platform for vulnerability risk assessment. It goes beyond basic CVSS scoring by adding context-aware analysis that reduces noise and highlights …

Heisenberg
Heisenberg: Open-source software supply chain health check tool

Heisenberg is an open-source tool that checks the health of a software supply chain. It analyzes dependencies using data from deps.dev, Software Bills of Materials (SBOMs), …

open-source cybersecurity tools
Hottest cybersecurity open-source tools of the month: October 2025

This month’s roundup features exceptional open-source cybersecurity tools that are gaining attention for strengthening security across various environments. Chekov: …

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