Cylake, a new cybersecurity company, has officially launched with $45 million in seed funding led by Greylock Partners. Founded by industry veterans Nir Zuk (Palo Alto Networks founder and former CTO), Wilson Xu (former Palo Alto Networks engineering leader), and Ehud (Udi) Shamir (SentinelOne co-founder), Cylake introduces a complete, AI-native, data-driven cybersecurity platform designed specifically for organizations requiring total data and operational sovereignty—no public cloud dependency.
The world’s most regulated organizations face a critical dilemma: they require state-of-the-art, AI-powered cybersecurity but cannot adopt solutions tied to public cloud infrastructure due to regulatory, sovereignty, or security mandates. Fragmented tools and incomplete visibility further exacerbate risks in these high-stakes environments.
Cylake is engineered from the ground up as a unified, AI-native platform that delivers comprehensive protection without compromising control. Key design principles include:
“Cybersecurity is constantly evolving, and sometimes new challenges demand completely new approaches,” said Nir Zuk, Founder and CEO of Cylake. “Cylake is for institutions where maintaining full control over data and operations is not optional.”
The founding team brings unparalleled expertise in building category-defining security platforms. Nir Zuk’s leadership at Palo Alto Networks, Wilson Xu’s engineering contributions there, and Udi Shamir’s role in founding SentinelOne position Cylake to innovate for an underserved market segment.
“The next generation of cybersecurity will be AI-native, agentic, and built on holistic data and context,” said Asheem Chandna, Partner at Greylock Partners. “Cylake is focused on a segment of the market where security must operate under full control to meet regulatory and operational reality.”
With $45 million in seed financing, Cylake is collaborating with a select group of design partners to refine the platform. General availability is planned for early 2027. Organizations interested in joining as design partners or exploring career opportunities can visit cylake.com.
Cylake’s launch addresses a critical need: delivering next-generation AI cybersecurity to institutions that demand uncompromising control, visibility, and accountability—proving that top-tier protection and sovereignty can coexist.
About Cylake
Cylake is a cybersecurity company built for the world’s largest and most regulated institutions. Co-founded by Nir Zuk, Wilson Xu, and Ehud (Udi) Shamir, Cylake is led by a team of experienced security engineers and operators. The company is developing a complete, AI-native, data-driven cybersecurity platform designed for full data sovereignty and intended for on-premises and private environments that require operational control and accountability. Cylake is focused on helping organizations that operate under strict constraints maintain security at scale.
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