
Horizon3.ai Raises $250M Series E at $2B+ Valuation
Horizon3.ai (US) raises $250M Series E at $2B+ valuation, tripling its prior valuation, to scale its NodeZero platform that autonomously attacks enterprise networks the way real adversaries do.
Daily Digest
Daily Digest
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Horizon3.ai (US) raises $250M Series E at $2B+ valuation, tripling its prior valuation, to scale its NodeZero platform that autonomously attacks enterprise networks the way real adversaries do.

Hush Security (Israel) raises $30M Series A with Akamai joining as strategic investor, for its machine-access platform that governs AI agents with just-in-time permissions and a centralized kill switch.

Manchester cybersecurity startup Cytix raises $7M Series A led by Northern Gritstone for its platform that continuously monitors and validates security risk in every AI-driven software change, with KPMG and NCC Group among its customers.

US autonomous pentesting startup Horizon3 raises $250M Series E at a $2B+ valuation, co-led by NightDragon and NEA, to lead the emerging "AI vs. AI" era of cybersecurity.

UK cybersecurity startup Prevalent AI, originally spun out of GCHQ, raises £16M in its first primary capital in nine years to map fragmented enterprise data into security knowledge graphs.

UK cybersecurity startup Cytix raises €6M Series A led by Northern Gritstone to help enterprises detect security risks introduced by rapid AI-driven software changes.

Cybersecurity startup Glow raises $180M Series A at a $1.2B valuation, backed by Sequoia, Cyberstarts, Greenoaks, and Redpoint, to secure enterprise AI agent deployments.