Adaptive Security Raises $81 Million in Series B Funding

Adaptive Security has announced raising $81 million in a Series B funding round, bringing the total raised by the New York‑based company to $146.5 million. The round was led by Bain Capital Ventures, with additional support from NVentures, OpenAI Startup Fund, Andreessen Horowitz (a16z), Abstract Ventures, Capital One Ventures, and Citi Ventures.

Founded in 2024, Adaptive Security aims to combat AI-powered threats such as deepfakes, vishing, smishing, and gen‑AI email attacks, and its platform runs AI‑powered simulations of impersonation attacks across communication channels to identify weak controls and tailor training. According to SecurityWeek, the funding supports the continued development of its training and phishing platforms, which are available in over 39 languages and offer accessibility controls and role‑based administrative access.

The company uses risk scoring and automated threat triage to help organisations pinpoint weak spots in their employee base and processes based on real user behaviour.