Security isn’t just about tools—it’s about experience, perspective, and an intimate understanding of the public trust. Cyber Castellan was founded on over 20 years of hands-on experience in the library field, combined with deep expertise across high-stakes government and commercial cybersecurity environments. We know firsthand that libraries operate under a unique dual mandate: maintaining open, welcoming access to knowledge while safeguarding patron privacy, patron databases, and critical digital infrastructure against increasingly persistent threats.

We’ve operated in environments where privacy is paramount and where failure has immediate, real-world consequences. We bring that same discipline, rigor, and public-sector values to every library system we partner with—translating complex cybersecurity standards into practical, sustainable defenses that respect your community mission and budget realities.

At our core, we are educators as much as we are practitioners. With deep experience in instruction, we believe that a strong security posture starts with empowered staff. Whether we’re delivering tailored staff awareness training, conducting penetration testing on library networks, or guiding leadership through strategic risk management, our approach is rooted in clarity, collaboration, and measurable impact.

We know that public, academic, and special libraries face distinct operational risks. We don't push one-size-fits-all commercial security tools onto environments that demand open public access. Instead, we work alongside your team to understand your workflows, protect what truly matters—from ILS data to public Wi-Fi networks—and build resilience without compromising patron trust.

Our mission is simple: to be a trusted partner in strengthening your library’s security posture—helping you protect patron privacy, defend against modern threats, and prepare for what comes next.