Casaba Security

Casaba Security combines 20+ years of cybersecurity testing and governance experience into our AI-native engagement platform, Nemesis, along with a skilled team of 60+ senior security consultants to deliver penetration testing and security assessment at a depth and consistency that neither humans nor automation can achieve alone. Nemesis organizes each engagement into a structured workspace, ingests documentation, source code, and architecture artifacts, runs parallel code analysis, validates findings, and generates report-ready output - while our consultants direct every phase, interpret results, run the tests and make the calls that require human expertise.

We are a CREST-accredited firm founded in 2002, with offices in the United States, Europe, and Asia. Our clients include Microsoft, Amazon, Meta, and Adobe, among other Fortune 100 technology companies.

Our core service areas include AI security testing, Web and API penetration testing, cloud infrastructure security, device and firmware security, and threat modeling. We also operate formal enterprise governance programs covering AI release gatekeeping and SDL.

Since 2024, Casaba has been selected yearly by Microsoft to conduct an independent security assessment of Microsoft 365 Copilot across dozens of implementations and Web applications. The reports are publicly available on Microsoft's Service Trust Portal.

Our consultants scope, execute, and stand behind every engagement. Findings are validated before delivery. Reports are written for both security engineers and executive stakeholders.

We strive to produce and deliver meaningful results that you will care about.