Horizon3.ai has 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. “We invented the concept of AI Hackers and spent … More →

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