Adaptive Security, the startup focused on defending organizations against AI-powered cyber threats, has raised an $81 million Series B, led by Bain Capital Ventures with participation from NVentures (NVIDIA), OpenAI Startup Fund, Andreessen Horowitz (a16z), and other strategic investors. The funding brings Adaptive’s total capital raised in 2025 to $146.5 million, underscoring investor confidence in the company’s approach to next-generation cybersecurity.
AI Impersonation Drives Urgent Security Needs
Founded by Brian Long and Andrew Jones, who previously scaled Attentive to $500 million in annual revenue, Adaptive was created to address the rising threat of AI-generated impersonation. Deepfakes and AI-cloned voices are rapidly moving from experimental risks to everyday security concerns.
“Even a few seconds of audio or a short video clip can generate a convincing clone,” said Long. “Organizations now face scenarios where familiar voices, faces, or messages cannot be trusted at face value.”
Recent statistics reflect the urgency: social engineering remains responsible for over 95% of successful cyber breaches, but malicious activity has shifted beyond email to phone, text, and video channels. Deepfake incidents in the U.S. grew 17x from 2023 to 2024, with more than 100,000 reported, and over half of Adaptive’s customer interactions in 2025 included deepfake incidents.
AI-Powered Security Awareness and Threat Simulation
Adaptive leverages AI to simulate deepfake and impersonation attacks across multiple channels, including voice, video, text, and email. These simulations reveal vulnerabilities in existing controls and provide personalized employee training to strengthen human-layer defenses.
The platform also offers automated threat triage and AI-driven executive risk scoring, helping organizations identify the most exposed teams and processes. According to Long, Adaptive’s goal is to move as fast as AI threats evolve, giving enterprises clarity in a rapidly shifting risk landscape.
Rapid Adoption and Growing Enterprise Footprint
Since its public launch in January 2025, Adaptive has grown to over 500 enterprise customers, including PayPal, Xerox, Bose, the NHL, PGA, Figma, Vimeo, and TaylorMade Golf. The company reports a world-class NPS score of 94, signaling strong customer satisfaction amid increasing AI-related threats.
Leading Investors Back Next-Gen Human-Layer Security
The Series B round reflects widespread concern about AI-enabled deepfake attacks and human-layer security risks. OpenAI Startup Fund’s continued participation highlights growing attention to the safety implications of generative models, while NVIDIA Ventures supports efforts to secure AI systems at scale.
Enrique Salem, partner at Bain Capital Ventures, said:
“The surge in AI-enabled threat vectors has elevated human-layer security to a board-level priority. Adaptive is emerging as the platform organizations rely on to stay ahead of these threats.”
With the new funding, Adaptive Security plans to expand its platform, accelerate threat simulation capabilities, and scale training programs, positioning itself as a key player in securing enterprises and consumers from AI impersonation attacks.
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