A Security Raises $37M as AI Turns Cybersecurity Into a Speed Problem
A Security, an Israeli-founded autonomous offensive security company, has raised $37M from Lightspeed Venture Partners, Cyberstarts, Cerca Partners, Wiz CEO Assaf Rappaport, and Cyera CEO Yotam Segev. Founded by Yossi Torati (CEO), Yuval Itzchakov (CTO), and Omer Gull (CPO), A Security is building a platform designed to continuously discover, validate, and remediate real attack paths before adversaries can exploit them.
The funding arrives as enterprises face a new reality: AI is accelerating both software creation and cyberattacks. Security teams are struggling to keep pace with expanding attack surfaces, while traditional testing methods often provide snapshots of risk rather than continuous validation.
The broader signal extends beyond a single funding round. Investors are increasingly directing capital toward AI-native cybersecurity platforms that can operate at machine speed, reflecting a shift in how organizations think about defense in an era of autonomous threats.
What Happened
Every generation of cybersecurity has its favorite bedtime story. First it was the firewall. Then the scanner. Then the annual penetration test delivered in a polished PDF thick enough to stop a bullet but somehow incapable of stopping an attacker. Meanwhile, attackers did not wait for the next quarterly review. They evolved. Now they are bringing AI to a knife fight and showing up with a missile launcher.
That is what makes A Security's $37M funding announcement worth paying attention to. Backed by Lightspeed Venture Partners, Cyberstarts, Cerca Partners, Wiz CEO Assaf Rappaport, and Cyera CEO Yotam Segev, A Security is built around a simple observation: most organizations know they have vulnerabilities, but very few know which ones actually matter when an attacker starts connecting the dots.
The company describes its platform as autonomous offensive security. Instead of generating another list of findings, A Security continuously discovers, validates, and remediates real attack paths that could allow adversaries to reach critical assets.
Why This Matters
The name is almost too perfect. Security has always been about answers, while A Security is obsessed with a harder question: can those weaknesses be connected and turned into an attack path that reaches something valuable? That difference sounds small until you realize one gets discussed in meetings while the other becomes a breach report.
Most organizations are still fighting yesterday's battles. A scanner finds issues. A pentest finds more issues. Teams debate severity scores while threats keep moving. A Security chose to focus on proof, building an autonomous offensive security platform that continuously discovers, validates, and remediates real attack paths. Not hypothetical risk. Real routes an adversary could actually take.
According to the company, the platform runs attacks continuously as environments change, linking weaknesses into validated kill chains and driving remediation through ITSM workflows before re-testing the results. In a world where AI-powered attackers never clock out, continuous pressure testing starts looking more like a requirement than an advantage.
Market Context
The founders understood something many security teams learn the hard way: attackers do not care how many vulnerabilities exist. They care about which ones connect. Yossi Torati, Yuval Itzchakov, and Omer Gull built A Security around that reality, drawing on experience across Sygnia, Check Point, Hunters, and Unit 8200 to focus on exploitability rather than possibility.
The timing matters. AI is expanding the attack surface faster than most organizations can map it. New interfaces appear overnight. New workflows emerge weekly. New risks arrive faster than most organizations can adapt. That dynamic is creating significant investor interest in AI-native cybersecurity startups capable of continuously validating risk instead of relying on periodic assessments.
Organizations are increasingly searching for solutions that can identify not just vulnerabilities, but the paths attackers can use to chain them together. As AI expands the speed and scale of offensive operations, the ability to validate real-world exploitability is becoming a higher priority for enterprise security teams.
Competitive Landscape
A Security enters a market that includes companies such as Pentera, XM Cyber, Horizon3.ai, and Cymulate, all of which focus on helping organizations better understand real-world attack exposure. The category itself is gaining momentum as enterprises look beyond traditional vulnerability management toward continuous validation and offensive testing.
What differentiates A Security is its emphasis on autonomous offensive security combined with remediation workflows. The company's thesis is that identifying attack paths is only half the problem. Closing them and validating that they remain closed is where security outcomes improve. That distinction may become increasingly important as AI accelerates both attack execution and environmental complexity.
What This Signals
Cybersecurity has always been an arms race. The difference now is that both sides are increasingly using machines. Attackers are automating reconnaissance, vulnerability discovery, and exploitation. Defenders are being forced to respond with greater automation, continuous validation, and faster remediation cycles.
That shift is helping create a new category at the intersection of offensive security, attack path management, and AI security. A Security's $37M raise is ultimately about more than funding. It reflects growing investor conviction that the future of cybersecurity will belong to platforms capable of operating continuously, validating real-world exploitability, and helping enterprises defend themselves at machine speed.
Frequently Asked Questions
What is A Security?
A Security is an autonomous offensive security company that continuously discovers, validates, and remediates real attack paths across enterprise environments.
How much funding did A Security raise?
A Security announced $37M in funding backed by Lightspeed Venture Partners, Cyberstarts, Cerca Partners, Assaf Rappaport, and Yotam Segev.
Who founded A Security?
A Security was founded by Yossi Torati (CEO), Yuval Itzchakov (CTO), and Omer Gull (CPO).
What problem does A Security solve?
A Security helps organizations identify attack paths that can actually be exploited instead of relying solely on vulnerability scans or point-in-time security assessments.
Why does A Security focus on AI-powered attacks?
AI is increasing the speed and scale of cyberattacks, making continuous attack validation and remediation more important for enterprise security teams.
Who invested in A Security?
Investors include Lightspeed Venture Partners, Cyberstarts, Cerca Partners, Wiz CEO Assaf Rappaport, and Cyera CEO Yotam Segev.
What is autonomous offensive security?
Autonomous offensive security uses automated and AI-driven systems to simulate real-world attacks, validate risks, and help organizations remediate exploitable weaknesses.
