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Why Microsoft released agent security for free

Microsoft released two free, open-source security tools for developers on Thursday, addressing growing risks from AI agents that require increased data access and permissions. The tools, RAMPART and Clarity, embed red-teaming techniques into development workflows and help engineers identify potential vulnerabilities before code is written. The company aims to scale security practices industry-wide as AI agents shift from generating text to taking real-world actions, creating new safety challenges.

read2 min publishedMay 20, 2026

hough agents are capable of handling increasingly complex tasks, greater agency brings more risk.

To manage more operations, these agents require increased access and permissions to your data, whether that means your email, records, or code repositories. But the more access you give these machines, the deeper the consequences are when they behave in unintended ways. It’s why Microsoft’s AI red team has unveiled two agentic security tools to address this issue before it gets out of control.

On Thursday, the company announced two new open-source security tools for developers:

RAMPART is an open source framework that embeds AI red-teaming techniques into the development workflow. This tool allows teams to continuously test agent behavior, both under common and adversarial circumstances.Clarity is a complementary tool to RAMPART, helping engineers and product teams reason through what they're building as they build it. This pressure-tests ideas and assumptions, and weeds out potential risks before the code is even written.

In a blog post, the company pointed to three reasons that it’s investing in these tools: To help scale red-teaming practices industry-wide, make incidents reproducible and verify mitigation techniques, and allow engineers to “think through the “why,” before the “how” of software building.”

“That shift from 'generate text' to 'do things in the world' changes the safety equation entirely, because an agent that can act can also potentially act in ways nobody intended,” Ram Shankar Siva Kumar, founder of Microsoft’s AI red team, said in a blog post.

The goal of these tools is to treat security as an ongoing consideration in building and deploying software, rather than something that can be configured or assessed once and left behind.

It’s a critical concern given that AI has the potential to create an incredibly dangerous cybersecurity landscape. Along with allowing engineers to ship faster than ever, potentially opening the door for vulnerable, vibe-coded apps and products to hit the market, increasingly powerful models have also put cyberattack capabilities into the hands of practically anyone with the motivation to do harm.

Our Deeper View #

Microsoft is joining a growing chorus of tech giants calling out security concerns around AI, with OpenAI and Anthropic each announcing their own cybersecurity measures as they race to bring more powerful models to market. With these two tools, however, Microsoft has taken it to another level: by open-sourcing them, the company’s red team is enabling other security professionals and developers to build on its work. This feeds a stronger security ecosystem and could enable defense techniques and safeguards to spread through the industry faster at a time when software development is moving at such a rapid (and potentially dangerous) clip. And, of course, this benefits Microsoft, too. Given that it’s not particularly standing out in the AI industry for models themselves, feeding the security market allows it to differentiate itself in the AI ecosystem.

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