Cybersecurity testing and governance
We test AI,
and everything it runs on.
Tech industry giants have trusted us with their most security-critical testing since 2002. We're curious people who love this work.
Microsoft chooses Casaba for red teaming and cyber evaluations. Our Copilot and penetration testing reports are public on Microsoft's Service Trust Portal.
Read the Copilot case studyWhat we do
From AI models to firmware
We test the models, agents, and AI features you're shipping, plus the apps, cloud, and devices they run on. Turns out two decades of testing the full stack is great preparation for AI.
Testing
AI Penetration Testing
We test LLM apps, agents, and whatever they can reach, from prompt injection and data exfiltration to tool misuse and safety harms. Microsoft has brought us in to red team Copilot since 2024.
Explore AI penetration testingCloud & AppSec
Real people testing your apps, APIs, source code, and cloud on AWS, Azure, and GCP. We find what scanners miss, then show you how to fix it.
Explore application testingDevice Penetration Testing
Firmware, wireless stacks, APIs, and the backend behind your connected product. We test from the chip to the cloud, before it reaches the field.
Explore device testingRed Teaming
We act like a real attacker across your infrastructure, applications, and people, finding vulnerabilities and chaining them together to show how far an attack really goes.
Explore red teamingNemesis
Our own AI-native offensive security platform. Our consultants run and orchestrate engagements on it, and you get findings that are proven against live targets, not guessed.
Explore NemesisEvaluation & Governance
Responsible AI
We've been the security release gate for some of the world's most significant generative AI products. We'll help you ship AI responsibly, and be ready to prove it.
Explore responsible AIGovernance & Threat Modeling
Security programs built to hold up under scrutiny, not to tick boxes, mapped to the frameworks you actually answer to. And threat modeling that finds design flaws while they're still cheap to fix.
Explore governance & threat modelingCasaba Cyber Evals
What can an AI model actually do in offensive cyber? Casaba Cyber Evals, our AI cyber evaluation platform, measures it against live targets and gives you evidence you can defend.
Explore Casaba Cyber EvalsOur technology
Nemesis, our AI-native offensive security platform
A scanner flags what might be wrong. Nemesis proves what's real. Our consultants scope the engagement, direct the work, and monitor it as it runs. High-integrity agents do the investigating. We guarantee they operate as intended and produce high-quality results: they reason across your code and live systems, chase down what matters, and prove what they find against the live target. Nothing reaches you until a consultant has signed off.
Case study
Red teaming M365 Copilot since 2024
Microsoft brings us in to red team Copilot across the M365 ecosystem and its web applications. We use the OWASP Top 10 for LLM Applications as a baseline and test Responsible AI harm categories alongside security. The reports are public on Microsoft's Service Trust Portal.
Read the Copilot case studyTrusted by
Microsoft, Amazon, Meta, Adobe, Costco, NetApp, GE, and hundreds more.
Let's talk
Tell us what you're working on. You'll talk directly to the people you'd work with.
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