Help Net Security newsletters: Daily and weekly news, cybersecurity jobs, open source projects, breaking news – subscribe here!

Please turn on your JavaScript for this page to function normally.
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 …

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 …

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 …

Praxen
Praxen: Open-source AI agent behavior verification

Praxen is an open-source tool with a simple job: it checks whether an AI agent does what it claims to do. The tool takes an agent’s declared policy, looks at how the …

Agent Beacon
Agent Beacon: Open-source telemetry layer for AI agents

AI coding agents such as Claude Code, Codex CLI, Cursor, and Claude Cowork run on developer laptops, CI jobs, cloud environments, where they edit files, run commands, and call …

systemd
The systemd 261 release brings a software TPM, new OS installer

Linux distributions that ship systemd as their init system now have a new version to track. The systemd 261 update adds a cloud metadata subsystem, carries process state …

Homebrew
Homebrew tightens tap security, begins work on its interface

Anyone who installs software through a third-party Homebrew tap runs Ruby code written by people outside the project, and that code runs without a sandbox. That risk sits at …

Microsoft AntiSSRF
Microsoft AntiSSRF open-source library helps block server-side request forgery

AntiSSRF is an open-source code library from Microsoft that validates URLs and network connections to reduce server-side request forgery (SSRF) risks in web applications. It …

DockSec
DockSec: Open-source AI-powered Docker security scanner

DockSec is an OWASP Incubator Project that combines three container security scanners with a language-model layer for explanation and remediation. Created by Advait Patel, the …

GitHub
GitHub Copilot app launches as desktop home for AI coding agents

GitHub introduced the Copilot app, a desktop application built for working with AI coding agents, at Microsoft Build 2026. The release expands GitHub’s Copilot product …

AgentGG
AgentGG: Open-source agentic SAST scanner

Static analysis tools have spent years matching source code against known-bad patterns and handing engineers long lists of candidate issues to triage by hand. AgentGG …

Don't miss

Cybersecurity news
Daily newsletter sent Monday-Friday
Weekly newsletter sent on Mondays
Editor's choice newsletter sent twice a month
Periodical newsletter released for important security events and breaking news
Weekly newsletter listing new cybersecurity job positions
Monthly newsletter focusing on open source cybersecurity tools