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.
Conjur
Conjur: Open-source secrets management and application identity

Conjur is an open-source secrets management project designed for environments built around containers, automation, and dynamic infrastructure. It focuses on controlling access …

Elementary OS
Elementary OS 8.1 rolls out with a stronger focus on system security

Elementary OS 8.1 is now available for download and shipping on select hardware from retailers such as Star Labs, Slimbook, and Laptop with Linux. The update arrives after …

code
AI code looks fine until the review starts

Software teams have spent the past year sorting through a rising volume of pull requests generated with help from AI coding tools. New research puts numbers behind what many …

Docker Hardened Images
Docker makes hardened images free open and transparent for everyone

Docker has made its open source Docker Hardened Images project available at no cost for every developer and organization. The catalog contains more than 1,000 container images …

Anubis
Anubis: Open-source web AI firewall to protect from scraper bots

Anubis is an open-source tool designed to protect websites from automated scraping and abusive traffic by adding computational friction before a request is served. Maintained …

Zabbix
Zabbix: Open-source IT and OT observability solution

Zabbix is an open source monitoring platform designed to track the availability, performance, and integrity of IT environments. It monitors networks along with servers, …

Prometheus
Prometheus: Open-source metrics and monitoring systems and services

Prometheus is an open-source monitoring and alerting system built for environments where services change often and failures can spread fast. For security teams and DevOps …

open-source security tools
40 open-source tools redefining how security teams secure the stack

Open source security software has become a key way for teams to get flexibility, transparency, and capability without licensing costs. The free tools in this roundup address …

UTMStack
UTMStack: Open-source unified threat management platform

UTMStack is an open-source unified threat management platform that brings SIEM and XDR features into one system. The project focuses on real time correlation of log data, …

Bastion
The Bastion: Open-source access control for complex infrastructure

Operational teams know that access sprawl grows fast. Servers, virtual machines and network gear all need hands-on work and each new system adds more identities to manage. A …

Portmaster
Portmaster: Open-source application firewall

Portmaster is a free and open source application firewall built to monitor and control network activity on Windows and Linux. The project is developed in the EU and is …

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: …

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 when there is breaking news
Weekly newsletter listing new cybersecurity job positions
Monthly newsletter focusing on open source cybersecurity tools