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open-source cybersecurity tools
20 open-source cybersecurity tools to keep your team ready for anything

AI is changing how security teams find vulnerabilities, analyze code, test applications, and protect infrastructure. Developers are building tools to secure AI systems …

Apple Container
Apple Container: Open-source tool for Linux containers on the Mac

Developers on Apple silicon Macs have run Linux containers through software built around a single shared virtual machine for years. Apple’s open-source Container project …

OpenSSH
OpenSSH 10.4 arrives with security fixes and a post-quantum signature option

Operators who manage remote access to Unix and Linux systems keep a close watch on OpenSSH, the software that carries most SSH traffic across the internet. The project …

Omnigent
Omnigent: Open-source AI agent framework and meta-harness

Plenty of developers now keep several coding agents close at hand, reaching for Claude Code on one task and Codex or Cursor on the next. Each tool arrives with its own command …

ClamAV
New ClamAV security patch closes seven scanner bugs dating back two decades

Open source antivirus scanning sits inside mail gateways, file upload checks, and endpoint tooling at organizations of every size. Much of that work runs through ClamAV, the …

search
What the AI patch gap means for enterprise security

Open-source maintainers are receiving more vulnerability reports than they can act on, and a rising share now comes from an AI system working at machine speed. Over roughly …

GitHub
GitHub’s new tool helps prevent costly open-source license violations

GitHub’s Open Source Program Office (OSPO) uses the new GitHub License Compliance feature, now in public preview, to manage thousands of open-source dependencies and …

Nika
Nika: Open-source code analysis tool

Many serious security bugs in web applications sit across several files at once. Request data enters through a controller, moves through data objects and service layers, and …

Kali Linux
Kali Linux 2026.2 trims VM boot times, refreshes its desktops

Penetration testers who run Kali Linux inside virtual machines boot their systems faster after the 2026.2 release. The change comes from a decision about graphics firmware, …

open-source cybersecurity tools
Hottest cybersecurity open-source tools of the month: June 2026

Presented here is a curated selection of noteworthy open-source cybersecurity solutions that have drawn recognition for their ability to enhance security postures across …

DarkMoon
DarkMoon: Open-source AI pentesting platform

Penetration testing has long run on expert time, with specialists spending days probing a network or web application by hand. Manual engagements stretch across weeks, expert …

open source
Critical open-source projects get a new security framework

Open source software projects are getting a new framework for handling security vulnerabilities as AI shortens the time between flaw discovery and exploitation. The Linux …

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