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.
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
macOS is becoming a proving ground for AI agents

Somewhere right now, a Mac Mini is sitting on a shelf doing someone’s chores. Nobody’s watching it. It reads a version number out of Terminal, hops over to Safari, …

Person
OpenAI and Anthropic are pulling in different directions

Companies are handing routine operational decisions to AI agents that plan, remember, and act on their behalf. These agents run on statistical models, and their behavior can …

LLM
Researchers make the case for a cybersecurity AI scientist

Autonomous AI agents have started doing real security work. Language-model agents probe software for flaws, run penetration tests, and chain together attack steps that once …

AI agents
How to prioritize AI agent security by business impact

Your CEO calls about an AI agent security incident in finance. He wants to know whether money moved, whether financial data was exposed, who owned the agent and why it had …

NFC
The future of payment fraud could be automated

Payment fraud is becoming more organized as criminal groups use fake websites, large-scale operations, and, in some cases, forced labor to steal money and personal …

Claude
Claude Sonnet 5 includes safeguards against dangerous cyber use

Anthropic has introduced Claude Sonnet 5, the latest version of its general-purpose AI model, with improved reasoning, coding, tool use, and knowledge work capabilities. The …

AI
Mozilla warns of indirect prompt injection risk in AI coding agents

A malicious GitHub repository can silently compromise a developer’s machine without containing a single line of malicious code, security researchers at Mozilla’s …

OpenAI
GPT-5.6 gets better at cybersecurity

OpenAI has started rolling out the GPT-5.6 series models in limited preview to a small group of trusted partners through the API and Codex. The series includes Sol as the …

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 …

AI
Scoring AI hackers when there is no answer key

AI models are solving more and more of the offensive-cyber tests built to measure them. Once a model solves most of a benchmark, that benchmark runs out of room and says …

Claude
Anthropic’s Claude Tag gives AI agents independent identities

Anthropic introduced an agent identity model for Claude Tag, its AI assistant designed for team collaboration in shared workspaces. The model gives Claude its own identity, …

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