Horizon3 hits $2 billion valuation with $250M Series E as AI threats escalate
Cybersecurity startup Horizon3 raised $250 million at a $2 billion valuation as companies want continuous, AI-powered security validation instead of annual pentesting.
ai security
Rogue agents and shadow AI: Why VCs are betting big on AI security
Misaligned agents are just one layer of the AI security challenge that startup Witness AI is trying to solve. It detects employee use of unapproved tools, blocking attacks, and ensuring compliance.
How WitnessAI raised $58M to solve enterprise AI’s biggest risk
As companies deploy AI-powered chatbots, agents, and copilots across their operations, they’re facing a new risk: how do you let employees and AI agents use powerful AI tools without accidentally leaking sensitive data, violating compliance rules, or opening the door to prompt-based injections? Witness AI just raised $58 million to find a solution, building what they call “the […]
MCP AI agent security startup Runlayer launches with 8 unicorns, $11M from Khosla’s Keith Rabois and Felicis
Three-time founder Andrew Berman is back with a startup that helps IT ensure business users’ AI agents operate securely.
Irregular raises $80 million to secure frontier AI models
Irregular, the AI security startup, now has a valuation of $450 million, a source close to the deal told TechCrunch.
Raising multiple rounds of venture capital might be wrong for your startup
What if startups raised less VC money and became self-sustaining? SecurityPal founder Pukar Hamal has done that and wants founders to know their options.