Artificial Intelligence

Adaptive Security Raises $81 Million in Series B Funding

Led by Bain Capital Ventures, the investment round brings the total raised by the company to $146.5 million.

Cybersecurity funding

Adaptive Security has announced raising $81 million in a Series B funding round, the third investment round since its official launch in January.  To date, the company has raised $146.5 million.

The funding 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, New York-based Adaptive Security aims to combat AI-powered cyber threats such as deepfakes, vishing, smishing, and gen-AI email attacks.

Adaptive Security’s platform runs AI-powered simulations of deepfakes and impersonation attacks across communication channels to identify weak controls and provide tailored training based on employee responses.

The company relies on open source intelligence and company-specific data to identify attack venues, then builds AI-powered attack simulations targeting an organization’s employees.

For employees who fail the simulations, Adaptive Security can restrict controls and provide personalized training so they can learn how to identify deepfakes of their executives and highly tailored scams.

Advertisement. Scroll to continue reading.

According to the company, its interactive training modules help build real-world skills in security and compliance, while ensuring that employees are better prepared to spot emerging AI-driven threats.

Through risk scoring and automated threat triage, it enables organizations to identify weak spots in their employee base and processes based on real user behavior.

Adaptive Security’s training and phishing platforms are available in over 39 languages, include accessibility controls and role-based administrative access, and can be integrated into existing SaaS tools.

“Over the past year, we have watched AI impersonations evolve from experimental to everyday. A few seconds of audio or a short video clip is now enough for anyone to generate a convincing clone. That shift forces organizations to prepare for scenarios where even familiar voices, faces, or messages can no longer be taken at face value,” Adaptive Security co-founder and CEO Brian Long said.

Related: Dux Emerges From Stealth Mode With $9 Million in Funding

Related: Verisoul Raises $8.8 Million for Fraud Prevention

Related: Echo Raises $35 Million in Series A Funding

Related: Prime Security Raises $20 Million to Build Agentic Security Architect

Related Content

Application Security

Sysdig’s platform uses runtime visibility to track AI agent actions and block risky behavior before it reaches production systems.

Artificial Intelligence

The company will invest in agentic data security capabilities and expand its go-to-market organization.

Artificial Intelligence

Hackers have been harvesting AI access tokens and have been using AI-assisted offensive tools to automate attacks.

Artificial Intelligence

A $300,000 award went to a pre-launch flaw that exposed conversations and tokens on internal Muse test VMs used by Meta staff.

Artificial Intelligence

The U.K. will likely face AI cyberattacks on its critical infrastructure by 2028 as criminals and states, including China and Russia, increasingly use AI...

Government

The NATO CCDCOE exercise in Estonia introduces AI agents and OpenAI Daybreak into joint cyber and kinetic operations training.

Artificial Intelligence

The startup maps how identities, assets and vulnerabilities connect, and uses AI agents to find and fix risky combinations of issues.

Artificial Intelligence

Google’s new frontier model scored 88.2% on SEC-bench Pro and is rolling out first to vetted cyber defenders via its Fairwind Program.

Copyright © 2026 SecurityWeek ®, a Wired Business Media Publication. All Rights Reserved.

Exit mobile version