Western Hemisphere
Horizon3 Raises $250M Series E at $2B Valuation as AI Cyberattacks Escalate
Horizon3, the San Francisco cybersecurity company behind the NodeZero autonomous penetration testing platform, has raised an oversubscribed US$250 million Series E at a valuation exceeding US$2 billion, co-led by returning investors NightDragon and NEA. The round more than triples the roughly US$650 million valuation the company