A Security, an autonomous offensive security platform designed to identify and close real-world attack paths before adversaries can exploit them, has emerged from stealth mode after raising $37m in funding from Lightspeed Venture Partners, Cyberstarts, and a group of prominent angel investors.
The round attracted backing from high-profile names including Wiz CEO Assaf Rapaport, Cyera CEO Yotam Segev, and Cerca Partners. A Security intends to deploy the capital to accelerate growth and expand its platform’s capabilities, as demand for autonomous security tools continues to mount across enterprise markets.
Unlike conventional penetration testing or periodic manual risk assessments, A Security’s platform operates continuously, mapping cross-domain attack paths and validating their exploitability. Its offensive and defensive AI agents probe environments with scoped execution and full audit trails, then drive remediation both at source and through compensating controls, delivering verified proof that exposure has been eliminated rather than assumed.
The company is already working with large organisations across the finance, healthcare, critical infrastructure and technology sectors, where security teams face mounting pressure to identify and close real attack paths at a pace manual testing cycles cannot sustain.
A Security was founded by Yossi Torati, who spent close to two decades working with global enterprises on cyber resilience and high-impact risk reduction. He most recently served as director of enterprise security at incident response firm Sygnia, where he led engagement against advanced persistent threats and coordinated global incident response programmes. Co-founders Omer Gull and Yuval Itzchakov bring experience from Check Point Software, Hunters, and the Israel Defense Force’s Unit 8200, covering red-team operations, vulnerability research, and large-scale AI and cybersecurity engineering.
A Security CEO and co-founder Yossi Torati said, “AI has changed the speed and scale of offensive cyber operations. Attackers are using agentic capabilities to find, chain and exploit weaknesses across environments, at a pace that human teams relying on manual processes cannot match. A is the only platform built to beat weaponized AI at its own game. Operating autonomously with full contextual awareness, we don’t stop at identifying and prioritizing isolated vulnerabilities. We discover the real-world exploit paths AI-enabled attackers will use to cause breaches, downtime, and business disruption and help organizations eliminate them before anyone gets the chance.”
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