NodeZero

Horizon3, whose AI penetration testing platform NodeZero helps find and exploit attack paths in production systems, raised a $250M Series E at a $2B valuation (Kate Park/TechCrunch)

Horizon3, a cybersecurity startup offering an AI-powered penetration testing platform called NodeZero, secured $250 million in Series E funding at a $2 billion valuation — a more than threefold increase from its prior valuation within 14 months.