Former Argon founders launch Echo with $15M to tackle open source risk
New venture aims to rewrite flawed code before hackers find it.
Cybersecurity startup Echo has raised $15 million in a Seed funding round led by Notable Capital and Hyperwise Ventures, with participation from SVCI.
Echo was founded in early 2025 by Eilon Elhadad (CEO) and Eylam Milner (CTO), both alumni of Unit 8200 and the Ofek unit, with over a decade of experience in cybersecurity. The duo previously co-founded Argon in 2020, which was acquired within a year by Aqua Security for $100 million. Echo’s solution is already deployed successfully at dozens of organizations, including Vectra AI, Port, UiPath, and Varonis. Its technology is also integrated with leading cybersecurity platforms such as Wiz, Orca, Aqua, Mend, Anchor, and others.
Echo currently employs 25 people in Israel and New York, and the new funding will be used to expand the team, accelerate product development, and support go-to-market efforts.
Echo’s AI agents analyze the functionality and critical components of original open-source code, rebuild it from scratch, and continuously update and patch it as new vulnerabilities are discovered. The result is a clean, secure infrastructure on which organizations can run containers with minimal risk of attack.
The rapid pace of software development driven by AI has dramatically increased cybersecurity risk. More applications mean more vulnerabilities, and more opportunities for attackers. According to industry data, there has been a 61% increase in newly discovered vulnerabilities and a 34% rise in exploitation attempts this year alone. While most cybersecurity solutions focus on ranking and prioritizing hundreds of thousands of vulnerabilities, Echo tackles the problem at its source, by preventing them from the outset.
“After Argon’s acquisition, Aqua Security became a school for us. We worked with the biggest companies in the world, Netflix, Tesla, Bank of America, and other Fortune 500s. All of them used tools that displayed and prioritized vulnerabilities in the cloud, but those tools simply couldn’t keep up,” said Eilon Elhadad, co-founder and CEO of Echo. “The rapid expansion of AI has introduced challenges at dizzying speed. Organizations are spending millions on tools that manage and scale problems, instead of solving them at the root.”
Oren Junger, Managing Partner at Notable Capital, added: “Vulnerability management is a $17 billion industry. By offering secure-by-design infrastructure, the industry could unlock billions annually – not to mention the downstream cost savings of preventing potential breaches. This is what Echo is championing; a solution that allows businesses the luxury of not thinking about how to manage or mitigate vulnerabilities.”
