Cylake, a newly launched cybersecurity company focused on delivering AI-native, data-driven protection for organisations requiring full data sovereignty, has officially emerged from stealth with $45m.
The firm is designed for highly regulated enterprises and institutions that require advanced cybersecurity capabilities but cannot rely on solutions tied to public cloud infrastructure.
The company revealed that it has raised $45m in a seed funding round led by Greylock Partners, with participation from additional experienced technology investors. The capital injection will support the company as it builds out its cybersecurity platform and expands its presence in a market increasingly focused on data sovereignty and operational control.
Cylake was co-founded by a trio of seasoned cybersecurity executives: Nir Zuk, Wilson Xu and Ehud (Udi) Shamir. The founders previously played key roles in building some of the most influential cybersecurity companies in the industry, including Palo Alto Networks and SentinelOne. Their experience in developing large-scale security platforms has shaped Cylake’s approach to delivering enterprise-grade protection for organisations operating in complex regulatory environments.
At the heart of Cylake’s proposition is an AI-native cybersecurity architecture designed to provide organisations with complete visibility and protection across their infrastructure. The platform is built to analyse data from across an entire technology stack, offering unified protection rather than relying on fragmented security tools. The company believes that incomplete datasets or disconnected security systems create exploitable vulnerabilities that can be avoided through a holistic platform built on a single data foundation.
Cylake also aims to address a challenge faced by some of the world’s largest institutions: the inability to deploy cybersecurity products that rely on the public cloud. For organisations handling sensitive data or operating under strict regulatory requirements, maintaining complete control over data and operations is essential. Cylake’s platform is therefore designed to operate fully on-premises or within private cloud environments, enabling customers to maintain full sovereignty over their data and infrastructure.
The new funding will be used to continue developing Cylake’s AI-native cybersecurity platform, with the company focusing on building agentic workflows powered by a unified data architecture. This approach is intended to allow security teams to automate complex workflows while maintaining visibility and accountability across their environments.
Cylake Founder and CEO Nir Zuk said, “Cybersecurity is constantly evolving, and sometimes new challenges demand completely new approaches. Cylake is for institutions where maintaining full control over data and operations is not optional.”
Greylock Partners partner Asheem Chandna said, “The next generation of cybersecurity will be AI-native, agentic, and built on holistic data and context. Cylake is focused on a segment of the market where security must operate under full control to meet regulatory and operational reality.”
The founding team brings decades of cybersecurity leadership to the new venture. Nir Zuk founded Palo Alto Networks in 2005 and served as the company’s CTO for more than two decades. Wilson Xu spent more than ten years at Palo Alto Networks, where he helped build the company’s engineering capabilities. Udi Shamir co-founded SentinelOne in 2013, another major player in the cybersecurity industry.
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