software
Kali Linux 2025.3 brings improved virtual machine tooling, 10 new tools
OffSec has released Kali Linux 2025.3, the most up-to-date version of its popular penetration testing and digital forensics platform. What’s new in Kali Linux 2025.3 Better …
Nosey Parker: Open-source tool finds sensitive information in textual data and Git history
Nosey Parker is an open-source command-line tool that helps find secrets and sensitive information hidden in text files. It works like a specialized version of grep, focused …
Cybersecurity AI (CAI): Open-source framework for AI security
Cybersecurity AI (CAI) is an open-source framework that helps security teams build and run AI-driven tools for offensive and defensive tasks. It’s designed for anyone working …
Behind the scenes of cURL with its founder: Releases, updates, and security
In this Help Net Security interview, Daniel Stenberg, lead developer od cURL, discusses how the widely used tool remains secure across billions of devices, from cloud services …
Rayhunter: EFF releases open-source tool to detect cellular spying
The Electronic Frontier Foundation (EFF) has released Rayhunter, a new open-source tool designed to detect cell site simulators (CSS). These devices, also known as IMSI …
Product showcase: Clean Links exposes what’s hiding behind a QR code
Clean Links is a handy app that shows you exactly where a link will take you before you click it. It strips out trackers, expands shortened URLs, and helps you avoid scams …
Garak: Open-source LLM vulnerability scanner
LLMs can make mistakes, leak data, or be tricked into doing things they were not meant to do. Garak is a free, open-source tool designed to test these weaknesses. It checks …
Signal adds secure backup option for chat history
Losing a phone can mean losing years of conversations. Signal is rolling out a new secure backup feature to help users keep their messages safe without giving up privacy. The …
Linux Kernel Runtime Guard hits 1.0.0 with major updates and broader support
The Linux Kernel Runtime Guard (LKRG) is a kernel module that checks the Linux kernel while it’s running. It looks for signs of tampering and tries to catch attempts to …
InterceptSuite: Open-source network traffic interception tool
InterceptSuite is an open-source, cross-platform network traffic interception tool designed for TLS/SSL inspection, analysis, and manipulation at the network level. …
BruteForceAI: Free AI-powered login brute force tool
BruteForceAI is a penetration testing tool that uses LLMs to improve the way brute-force attacks are carried out. Instead of relying on manual setup, the tool can analyze HTML …
Hottest cybersecurity open-source tools of the month: August 2025
This month’s roundup features exceptional open-source cybersecurity tools that are gaining attention for strengthening security across various environments. Buttercup: …
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