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• Comment: In accordance with the Wikimedia Foundation's Terms of Use, I disclose that I have been paid by my employer for my contributions to this article. John Whirlaway (talk) 17:32, 21 August 2026 (UTC)

Cylake is an American cybersecurity company founded in 2026 and headquartered in Sunnyvale, California. The company is developing an AI-native cybersecurity platform built on a complete data foundation, designed for organizations with data sovereignty and operational control requirements. Its platform is intended to operate on-premises or within private cloud environments rather than relying on public cloud infrastructure.^{[1][2] [3]}

The company was co-founded by Nir Zuk, Wilson Xu, and Ehud (Udi) Shamir. Zuk previously co-founded Palo Alto Networks in 2005 and serves as Cylake's Chief Executive Officer (CEO). ^{[1] [4] [5]}

Cylake was founded in 2026 by Nir Zuk, Wilson Xu, and Ehud (Udi) Shamir. The company emerged from stealth on March 5th 2026, announcing a $45 million seed funding round led by Greylock Partners. In April 2026, In-Q-Tel (IQT), the non-profit venture arm of the United States intelligence community, announced an investment in the company.^{[1] [4] [5] [6]}

According to company statements and interviews, Cylake was founded to address the cybersecurity requirements of large and highly regulated organizations that cannot rely on public cloud infrastructure due to regulatory, operational, or geopolitical security constraints. ^{[1] [2]}

Cylake is developing an AI-native cybersecurity platform for organizations with data sovereignty and operational control requirements, including government agencies, defense contractors, critical infrastructure operators, and other highly regulated organizations. The platform is intended for customers that cannot send sensitive operational or security data to public cloud infrastructure. ^{[1] [2] [3]}

The platform is designed to operate on-premises or within private cloud environments. Its vertically integrated hardware and software architecture centers on a unified security data platform that consolidates security telemetry, infrastructure data, and operational context into a single ingestion pipeline and data foundation for cybersecurity operations. According to the company, this architecture is intended to support AI-driven security analysis while allowing customers to retain control over their data and infrastructure. ^{[1] [2]}

As of 2026, the platform was under development in collaboration with design partners, with general availability planned for early 2027. ^{[2] [3]}

Cylake was co-founded by Nir Zuk, Wilson Xu, and Ehud (Udi) Shamir, who previously worked together building category-defining cybersecurity products and companies. The founding team combines experience across cybersecurity engineering, enterprise platforms, and executive leadership. ^[1]

Nir Zuk is a cybersecurity entrepreneur and engineer who co-founded Cylake and serves as its Chief Executive Officer (CEO). He previously co-founded Palo Alto Networks in 2005. He served as its Chief Technology Officer for more than two decades, helping build the company into one of the world's largest cybersecurity vendors. Zuk began his career at Check Point Software Technologies where he contributed to the development of stateful inspection firewall technology. He later co-founded OneSecure, one of the earliest intrusion detection and prevention system (IDS/IPS) companies, which was acquired by NetScreen Technologies in 2002; Netscreen was in turn acquired by Juniper Networks in 2004.^[7]

Udi Shamir is a cybersecurity engineer and entrepreneur who co-founded Cylake and serves as its Chief Architect. He previously co-founded SentinelOne in 2013 and helped lead the company during its early growth. Before joining Cylake, Shamir served as a distinguished engineer at Palo Alto Networks.

Wilson Xu is a software engineer and technology executive who co-founded Cylake and serves as its Chief Development Officer (CDO). Before joining Cylake, Xu spent more than a decade at Palo Alto Networks, where he led the company's engineering organization and oversaw the development of its cybersecurity platform.

Cylake launched with $45 million in seed funding led by Greylock Partners. The company also received investment from In-Q-Tel (IQT). ^{[1] [8] [9] [5]}

Cylake publishes cybersecurity commentary through its Substack and the Inside Cybersecurity podcast. The series features discussions on cybersecurity architecture, artificial intelligence, data sovereignty, and security operations.^[13]

• Podcast
  • Episode 1: Why We Started Cylake: Building Cybersecurity for the AI Era with Nir Zuk
  • Episode 2: Cybersecurity Wasn't Built for the AI Era

• Substack
  • Is AI killing cybersecurity?
  • Sovereignty Is The Next Firewall
  • Your Cyber Systems Can’t Keep Up With Your Data