Israeli Cyber Startup Tenzai Launches AI That Detects and Fixes Vulnerabilities Instantly
In the ongoing battle in cybersecurity, a critical challenge is the lengthy time between identifying a vulnerability and fully patching it. Even after a security system detects and confirms a flaw, development and security teams must undergo complex coding, integration, and deployment processes that can take days or weeks, leaving systems exposed. As attackers increasingly use AI to rapidly find weaknesses, this exposure window poses a significant daily risk to companies worldwide.
Israeli cybersecurity firm Tenzai, known for raising one of the largest seed rounds in Israel's tech sector with $75 million in 2025, has announced a major upgrade to its AI Hacker platform. Previously focused on detecting, verifying, and exploiting vulnerabilities, the platform now autonomously generates immediate temporary defenses within minutes to reduce risk. It also provides precise guidance for permanent fixes and runs automated tests post-implementation to ensure the vulnerability is fully closed.
This marks the first time an offensive AI tool completes the entire vulnerability lifecycle independently, from detection and verification to instant mitigation and verified remediation. Co-founder and VP of Product Enar Mazor explained to ynet that this development shifts cybersecurity from passive monitoring and alerting to active, real-time risk reduction. The AI Hacker not only identifies real attack paths but also helps neutralize them immediately, creating a new category of security capabilities.
Tenzai’s solution differs from general AI models by focusing on dynamic, active testing within live environments and incorporating strict safety controls to prevent damage, such as accidental data deletion. Mazor noted that about a quarter of cyberattacks today involve AI, raising the stakes for protective measures. The system’s temporary defenses are designed to block specific attack vectors without disrupting legitimate operations, buying developers time to implement thorough permanent patches.
This innovation aligns with global trends moving from traditional vulnerability management to continuous exposure management and autonomous penetration testing. While many international companies have developed tools that identify attack paths, most stop at reporting. Tenzai’s platform advances this by combining offensive AI with immediate defensive remediation, dramatically shortening the exposure window and enhancing organizational security.
Tenzai’s investors include former NBA player Omri Casspi. The company continues to develop autonomous "artificial hackers" that simulate advanced cyberattacks continuously to find and fix vulnerabilities proactively.
