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 3Knostic
Need-to-know access controls and security for enterprise AI
Raised
$14M
Stage
S-A
Pillar Security
The security platform for AI applications and agents
Raised
$9M
Stage
Seed
GetReal Security
Enterprise deepfake defense and media forensics company that detects AI-generated
Raised
$17.5M
Stage
S-A
Ray Security
AI-powered predictive data security platform that monitors how employees, systems, and AI
Raised
$11M
Stage
Seed
TENEX.AI
AI-native, human-led managed detection and response
Raised
$27M
Stage
S-A
Skyflow
Skyflow provides runtime AI data control, securing sensitive data across datastores, models, and AI agents.
Raised
$137.5M
Stage
S-B
Sublime Security
Autonomous email defense for the post-LLM threat era
Raised
$244M
Stage
S-C
OX Security
Active ASPM platform securing apps from AI-assisted code to runtime
Raised
$94M
Stage
Seed
CodeIntegrity
Runtime security guardrails for agentic AI
Raised
$5M
Stage
Seed
TruthScan
Enterprise AI detection for deepfakes, text, images, and voice
Raised
$16.2M
Stage
S-A
Qevlar AI
Paris-based agentic AI security operations platform that autonomously enriches, correlates
Raised
$44M
Stage
Seed
WitnessAI
AI safety and governance platform for the enterprise
Raised
$85.5M
Stage
STRATEGIC
XBOW
Autonomous offensive security AI
Raised
$237M
Stage
SERIES C EXTENSION
Klaimee
Liability insurance for AI agents — you deploy them, we cover you.
Raised
$500K
Stage
Seed
Coram AI
AI-native physical security platform for video, access and safety
Raised
$13.8M
Stage
S-A
AegisAI
Autonomous AI agents that stop phishing before it reaches the inbox
Raised
$13M
Stage
Seed
Doppel
AI-native platform for social engineering defense that protects brands and individuals from
Raised
$105M
Stage
S-C
Linx Security
AI-first identity security platform that maps, governs, and remediates identity risk across
Raised
$83M
Stage
S-B
Bedrock Data
AI-native data security platform that discovers, classifies, and contextualizes sensitive data
Raised
$25M
Stage
S-A
Silence Laboratories
Private computing infrastructure using MPC to protect secrets, data and keys
Raised
$6M
Stage
PRE-SERIES A
MindFort
Autonomous AI security agents that find, validate and patch web app vulnerabilities
Raised
$3M
Stage
Seed
Agentic Fabriq
Okta for Agents
Raised
$500K
Stage
Seed
RASPIRE
No-code runtime app security with AI
Raised
$500K
Stage
Seed
Kestrel AI
AI-Native Cloud Incident Response Platform
Raised
$500K
Stage
Seed