Articles from Horizon3
Horizon3, the AI-native proactive security leader, today announced the appointment of Chad Keefer as Vice President of Federal Sales.
By Horizon3 · Via Business Wire · August 25, 2026
Horizon3, the AI-native proactive security company, today announced a $20 million investment in its global partner ecosystem. The investment expands channel leadership, enablement, strategic alliances, and go-to-market programs so partners can continue delivering security their customers can prove, while building high-margin practices of their own.
By Horizon3 · Via Business Wire · August 5, 2026
Horizon3, the AI-Native Proactive Security Company behind NodeZero®, the World’s Best AI Hacker™, today announced a $250 million Series E at a valuation of more than $2 billion, tripling its valuation from $650 million at Series D in just over a year. The oversubscribed round was co-led by existing investors NightDragon and NEA, with participation from seven new investors and five returning backers. The capital underscores accelerating global demand for safe, autonomous security validation as AI-driven cyberattacks escalate.
By Horizon3 · Via Business Wire · August 3, 2026
Horizon3 today announced the expansion of its NodeZero® platform with AI-powered web application pentesting capabilities. NodeZero, the world’s most experienced AI hacker, can now autonomously and safely test web applications the way real attackers operate, chaining vulnerabilities from application abuse through credential theft, lateral movement, cloud pivots, and sensitive data exposure.
By Horizon3 · Via Business Wire · July 29, 2026