Startup profile · funding coverage
Adaptive Security funding, valuation and investors
AI-native platform to prevent social-engineering attacks — deepfakes, vishing, and smishing.
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Funding, valuation & investors
Answer-first snapshotLatest funding
Series B
$81M · December 2025
Latest known valuation
Not publicly disclosed
Total disclosed equity funding
$124M
Excludes debt, grants, acquisitions, secondaries, and IPO proceeds.
Current status
private
series b · New York, New York
Overview
Adaptive Security (listed as Adaptive on a16z's portfolio) runs AI-native social-engineering simulations — deepfake voice calls, smishing, and email spoofing — to train employees and score organizational risk in real time.
Why Adaptive Security is interesting
Founded by Attentive veterans after OpenAI's first cybersecurity bet; simulates AI-powered attacks to train employees before real breaches.
Product & use cases
Adaptive Security runs AI-generated social-engineering simulations across voice (deepfake calls), SMS, and email — training employees and triaging reported threats with real-time risk scoring.
- Deepfake voice impersonation drills for finance teams
- Multi-channel smishing and phishing simulations
- Real-time triage of employee-reported suspicious messages
Key facts
- Series B (Dec 2025): $81M led by Bain Capital Ventures; a16z participated (Adaptive press)
- Series A (Apr 2025): $43M co-led by a16z and OpenAI Startup Fund; Eniac participated (Adaptive blog)
- Co-investors not in VCT directory: Bain Capital Ventures, OpenAI Startup Fund, NVIDIA NVentures, Abstract Ventures
Funding history (newest first)
Series B
2025-12 $81MSeries A
2025-04 $43MSource: https://www.adaptivesecurity.com/blog/adaptive-raises-series-a
Investors in our directory
Funds linked from Adaptive Security's profile — open a fund page for stage focus and related deal articles.
Competitive landscape
Edge: OpenAI Startup Fund's first cybersecurity bet — purpose-built for AI deepfake and multi-channel attacks vs. email-only legacy SAT.
Legacy SAT vendors dominate email drills. Adaptive raised $146.5M in under two years targeting AI voice/video impersonation — moat depends on simulation realism vs. incumbent distribution.
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KnowBe4 incumbent
Email SAT market leader; less AI deepfake focus.
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Proofpoint incumbent
Bundled email security awareness.
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Hoxhunt direct
Behavior-change SAT; Adaptive emphasizes AI attack channels.
Notable stories
- OpenAI Startup Fund co-led $43M Series A — first cybersecurity investment (2025).
- Co-founders Brian Long and Andrew Jones previously built Attentive and TapCommerce.
- Deepfake incidents grew 17x from 2023–2024 per company reporting (PR Newswire).
Industries
Related funding articles
Venture Capital Tracker pieces that cover Adaptive Security's financing or category context.
FAQs about Adaptive Security
Practical answers founders, operators, and investors typically search for.
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