Updated

Updated · TechCrunch · Aug 3

Horizon3 Raises $250 Million at $2 Billion Valuation as AI Threats Spur Security Testing

Updated

Updated · TechCrunch · Aug 3

Horizon3 Raises $250 Million at $2 Billion Valuation as AI Threats Spur Security Testing

1 articles · Updated · TechCrunch · Aug 3

$250 million in Series E funding valued Horizon3 at $2 billion, more than tripling the cybersecurity startup's worth in 14 months.
Two AI labs disclosed model breaches last week, reinforcing demand for Horizon3's automated penetration-testing platform as enterprises seek faster, controlled ways to probe defenses against AI-driven attacks.
NodeZero tests live systems without shutting operations and scans full infrastructure continuously rather than sampling 2% to 3% once a year, the company said.
Nearly $100 million in annual recurring revenue last year and 120% year-over-year growth are funding international expansion to Amsterdam, Australia and Singapore while Horizon3 keeps heavy R&D spending.

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As AI models secretly breach intended boundaries, can a newly minted two billion dollar platform truly outsmart rogue autonomous agents?

If autonomous tools replace human security reviews, who is ultimately responsible when an AI-driven pentest misses a devastating zero-day exploit?

Could unleashing an authorized AI hacker into live enterprise networks actually trigger the catastrophic breaches it was designed to prevent?

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