Abnormal Security's $250M Series D made behavioral-AI email defense the loudest category bet, and the AI-native SOC race has since pulled in Prophet Security, Dropzone AI, and Reach Security as Tier-1 alert-triage agents. Cyera and Skyflow attack the data-security-posture problem from opposite angles, classification versus runtime tokenization, while Wiz, Snyk, and Vectra AI push existing CNAPP, AppSec, and NDR product lines toward agent-driven detection. HiddenLayer and Lakera carve out model-and-prompt security specifically. Adaptive Security flips defense outward by training employees against AI-generated phishing, a workload that didn't exist before mid-2024 deepfake voice scams.
CATEGORY
Best AI for Cyber Defense Tools
118 tools compared · 2026
AI-native SOC agents, model-supply-chain scanners, and behavioral defenses against deepfake-era attacks
118 ai for cyber defense startups tracked, with the largest concentration in US. Total tracked funding: $12.2B.
Tracked
118
Total Raised
$12.2B
Countries
14
Active Deals
1
1 
Vanta San Francisco, US $504M 2 
7AI Boston, US $166M 3 
Armadin Washington, US $189.9M 4 
Abnormal Security San Francisco, US $760M 5 
Torq Portland, US $332M 6 
Oasis Security Tel Aviv, IL $195M 7 
Sentra Tel Aviv, IL $105M 8 
Jazz Tel Aviv, IL $61M 9 
Exaforce San Jose, US $200M 10 
Tines Dublin, IE $146.2M 11 
Bold Security Tel Aviv, IL $40M 12 
Horizon3.ai San Francisco, United States $178.5M
Funding by year — AI for Cyber Defense
2019 → 2026Market overview
Key trends 2026
- AI-native SOCs replace Tier-1 analysts. Prophet, Dropzone, and Adaptive ship agents that close alerts without human triage.
- Prompt-injection gets its own product class. Lakera and HiddenLayer sell guardrails and red-teaming for the model layer.
- Identity-fraud meets deepfakes. Persona, Alloy, and Sardine retool KYC stacks to catch synthetic-media account-opening attacks.
Benchmarks vs global
Largest single round
$250M (Abnormal Series D)
vs traditional EDR rounds ↑
AI-SOC alerts auto-closed
60-80% (vendor-claimed)
vs ~10% pre-agent baseline ↑
Deepfake-phishing incidents YoY
3-5x growth
vs flat traditional phishing ↑
Top countries
By startup countStage breakdown
Latest round typeTop investors backing AI for Cyber Defense
See all →Y Combinator
16 deals
BV
Bessemer Venture Partners
10 deals
Insight Partners
9 deals
Accel
8 deals
T
Team8
7 deals
Menlo Ventures
7 deals
Khosla Ventures
7 deals
Lightspeed Venture Partners
6 deals
PC
Picture Capital
6 deals
Sequoia Capital
6 deals
EE
Evolution Equity Partners
5 deals
FC
Foundation Capital
5 deals
FAQ
Frequently asked
What does AI-native SOC actually mean?
It means triage agents (Prophet Security, Dropzone AI) auto-investigate alerts end-to-end — pulling logs, correlating identities, drafting verdicts — instead of routing tickets to a human Tier-1 analyst. The SOC keeps Tier-2 and Tier-3 humans for escalations only.
Which AI cyber-defense startup has raised the most?
Abnormal Security leads our tracked set at $250M Series D, focused on behavioral AI for email and account takeover. Adjacent CNAPP leaders like Wiz are larger overall but sit primarily in cloud security rather than AI-defense-first.
Do I need a separate tool for AI/LLM security on top of CNAPP?
Most teams now run both. CNAPP (Wiz, Snyk) covers cloud and code. HiddenLayer and Lakera add model-supply-chain scanning, prompt-injection detection, and runtime guardrails for deployed LLM apps that traditional CNAPP tools don't yet inspect.
Recent rounds in AI for Cyber Defense
All rounds →| Date | Startup | Round | Amount |
|---|---|---|---|
| Aug 2026 | Socure | Other | $156M |
| Jul 2026 | inforcer | Series C | $50M |
| May 2026 | Ocean | Seed | $28M |
| May 2026 | Exaforce | Series B | $125M |
| May 2026 | Frame Security | Seed | $50M |
| May 2026 | XBOW | Series C Extension | $35M |
| Apr 2026 | Artemis Security | Series A | $55M |
| Apr 2026 | Trent AI | Seed | $13M |
All AI for Cyber Defense startups
Page 2Multifactor
Zero-trust authentication, authorization, and auditing for AI agents
Raised
$15.5M
Stage
Seed
Cogent Security
Autonomous AI agents for enterprise vulnerability management and remediation
Raised
$53M
Stage
S-A
Native
Security-by-design control plane for multi-cloud and AI infrastructure
Raised
$42M
Stage
S-A
imper.ai
Real-time defense against AI-driven impersonation and deepfake attacks
Raised
$28M
Stage
Seed
MIND
AI-native data loss prevention and insider risk on autopilot
Raised
$40M
Stage
S-A
Loti AI
AI likeness protection that detects and removes deepfakes of you
Raised
$23M
Stage
S-A
Maze
AI-native cloud security platform that uses autonomous AI agents to investigate, prioritize
Raised
$31M
Stage
Seed
JetStream Security
AI governance company that helps enterprises safely adopt AI at scale by mapping, monitoring
Raised
$34M
Stage
Seed
Vectra AI
Cybersecurity AI that stops attacks others can’t by revealing who's doing what on your network right now.
Raised
$425M
Stage
S-F
Veria Labs
Continuous AI pentesting that finds and fixes vulnerabilities
Raised
$3.7M
Stage
Seed
CyberRidge
Photonic encryption that hides data as optical noise, quantum-resistant by design
Raised
$26M
Stage
S-A
RunSybil
AI offensive security that pentests like an elite researcher
Raised
$40M
Stage
S-A
Trent AI
Layered, context-driven security for the agentic age
Raised
$13M
Stage
Seed
Orchid Security
AI-powered identity security platform that uses large language models to bring clarity to
Raised
$36M
Stage
Seed
Twine Security
AI 'digital employees' that autonomously execute cybersecurity work alongside human teams
Raised
$12M
Stage
Seed
Artemis Security
AI-native protection platform for modern security operations
Raised
$70M
Stage
S-A
Persona
Persona provides flexible and secure identity verification solutions for businesses to verify real people and real businesses online.
Raised
$417.5M
Stage
S-D
Mindgard
Automated AI red teaming and security testing across the AI model lifecycle
Raised
$11.8M
Stage
Seed
Terra Security
Agentic offensive security platform for continuous AI-driven penetration testing
Raised
$38M
Stage
S-A
Endor Labs
AI-native application security platform for the AI-generated code era
Raised
$188M
Stage
S-A
Ocean Security
AI security agents that investigate every email's intent in real time
Raised
$28M
Stage
Seed
Reality Defender
Real-time deepfake detection for enterprises, platforms, and governments
Raised
$48M
Stage
S-A
Acoru
Predict and prevent AI-driven fraud and money mules before they strike
Raised
$10.8M
Stage
S-A
Prime Security
Agentic product security that reviews designs and code before production
Raised
$25M
Stage
S-A