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Cyber startup Bay raises $37m., with backing from Assaf Rappaport - The Jerusalem Post

Reported by Jpost
Nov 11, 2026· 3 min read
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Key Takeaways
  • • Israeli cybersecurity startup Bay raised a $37 million Series A round, bringing its total funding to $50 million roughly nine months after its founding, according to The Jerusalem Post.
  • • The Series A was led by Battery Ventures, with participation from Micron Ventures, the investment arm of chipmaker Micron, which is also a Bay client.
  • • Bay's platform acts as a security supervisor for AI agents, evaluating each agent action in real time and deciding within milliseconds whether to allow, block, or escalate it for human approval.
  • • Existing investors include Wiz CEO Assaf Rappaport, Cisco chief product officer Jeetu Patel, and former Zscaler chief strategy officer Dr. Manoj Apte, following a $13 million seed round led by YL Ventures and Striker.
  • • Bay has 35 employees, mostly in Israel, and will use the capital to expand product and engineering teams and grow sales, marketing, and customer functions in the US and Europe.
Summary
Cybersecurity startup Bay announced on Tuesday, November 11, 2026, that it has completed a $37 million funding round, bringing its total investment to $50 million in the nine months since its founding, according to The Jerusalem Post. The Series A round was led by Battery Ventures, a US venture capital firm founded in 1983 and among the oldest technology venture funds globally. Micron Ventures, the investment arm of chipmaker Micron, also participated; Micron is a client of the company. The round follows a $13 million seed round led by YL Ventures and Striker.

The company's investors include Assaf Rappaport, CEO of Wiz; Jeetu Patel, chief product officer at Cisco; and Dr. Manoj Apte, former chief strategy officer at Zscaler. Bay's funding will support headcount growth from its current 35 employees, most of whom are based in Israel. Hiring is expected to concentrate on product and engineering, with additional investment in sales, marketing, and customer teams in the US and Europe.

Bay's platform functions as a supervisory layer for AI agents. It identifies agents operating within an organization and reviews each action they are about to perform in real time, against the assigned task and the context of prior actions. According to the company, the system decides within milliseconds whether to permit, block, or forward an action for human approval, in line with the organization's security policy. Permitted actions proceed without interruption. The platform also surfaces security risks in AI tool usage and integrates with existing security processes to enable automated remediation.

Bay says dozens of organizations across finance, insurance, technology, industry, and media use the platform. Named clients include Wix, ClickUp, Micron, and Peloton, along with other Fortune 100 companies.

The company was founded at the beginning of 2026 by CEO Yuval Zacharia, VP of product Aner Morag, and VP of R&D Boris Danilovich. Zacharia previously served as an intelligence officer in Unit 8200 and as research and AI manager at Hunters, where he led development of the product's AI capabilities. Morag moved from intelligence roles into offensive cyber in Unit 8200 and was among the first employees at Noname Security, where he led R&D and product. Danilovich was an early employee at Preempt Security, acquired by CrowdStrike in Q3 2020 for $96 million, and subsequently served as a senior executive at CrowdStrike's Israel R&D center. Zacharia stated: "We built Bay to secure all of an organization's AI usage in a single platform, enabling the organization to meet the challenge of growth and implement new tools faster and more securely."

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Jpost Cyber startup Bay raises $37m., with backing from Assaf Rappaport - The Jerusalem Post