a16z led a $43m funding round in Adaptive Security.

a16z, a venture capital firm, led a $43m funding round in Adaptive Security, a company specializes cybersecurity, with participation from Abstract Ventures, Eniac Ventures, CrossBeam Ventures and K5. "The rise of AI-powered social engineering represents one of the most urgent cybersecurity threats of our time. Deepfake phone calls, AI-generated emails and SMS phishing are evolving rapidly. Attackers can now create AI personas of anyone, turning routine communications into sophisticated fraud attempts. Our platform is designed to protect companies at every stage of the attack cycle — from simulated AI attacks to employee training and automated risk mitigation. With this new investment from a16z, the OpenAI Startup Fund and other top-tier partners, we are scaling our technology to stay ahead of the next generation of cyber threats," Brian Long, Adaptive Security Co-founder and CEO.