Adaptive Security, a New York-based provider of AI-powered social engineering prevention solutions, has raised $81 million in Series B funding.
Investors
The round was led by Bain Capital Ventures, with participation from NVentures (NVIDIA), OpenAI Startup Fund, Andreessen Horowitz (a16z), Abstract Ventures, Capital One Ventures, and Citi Ventures.
Bain Capital Ventures is a venture capital firm based in San Francisco, California, with over $10 billion under management. The firm invests in B2B software startups from seed to growth stages across four domains: Fintech, Commerce, Apps, and Infrastructure. Founded in 1984, BCV has helped launch and commercialize more than 400 companies.
Adaptive Security Use of Funds
The company will use the funding to expand its platform capabilities, including AI-driven deepfake phishing simulations, executive risk scoring, and training programs to help enterprises mitigate AI-enabled impersonation risks.
About Adaptive Security
Founded by Brian Long and Andrew Jones, Adaptive Security is a cybersecurity company that uses AI to simulate deepfake and impersonation scenarios across voice calls, text messages, video, and email. Its AI-powered social engineering prevention solutions specialize in protection against deepfake personas, AI-driven phishing, and multi-channel social engineering threats. By combining advanced AI simulations, real-time risk assessment, and security awareness training, Adaptive empowers organizations to proactively defend against emerging cyber threats. The company serves over 500 enterprise customers, including PayPal, Xerox, Bose, and the National Hockey League.
Funding Details
Company: Adaptive Security, Inc.
Raised: $81.0M
Round: Series B
Funding Date: December 2025
Lead Investor: Bain Capital Ventures
Additional Investors: NVentures (NVIDIA), OpenAI Startup Fund, Andreessen Horowitz, Abstract Ventures, Capital One Ventures, Citi Ventures
Company Website: https://www.adaptivesecurity.com/
Software Category: Cybersecurity / AI Security
Source: https://www.prnewswire.com/news-releases/adaptive-security-raises-81-million-series-b-to-stop-ai-powered-cyber-threats-302643174.html