AI Security

Horizon3 raises $250M at $2B valuation amid AI threats

August 03, 2026 1 min read 5 views
cybersecurity news newsapi
Horizon3, a San Francisco cybersecurity startup, raised $250M in Series E funding, tripling its valuation to $2B in 14 months. The investment comes as AI-driven threats escalate, with backing from NightDragon and NEA.

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