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 1Vanta
Agentic trust and compliance automation platform
Raised
$504M
Stage
S-D
7AI
Agentic cybersecurity platform deploying autonomous AI security agents for alert triage and investigation.
Raised
$166M
Stage
S-A
Armadin
Autonomous AI red-teaming for the era of AI hyperattacks
Raised
$189.9M
Stage
S-A
Abnormal Security
Protect humans with behavioral AI against phishing, social engineering, and account takeovers.
Raised
$760M
Stage
OTHER
Torq
Agentic AI platform for the autonomous SOC
Raised
$332M
Stage
S-D
Oasis Security
Agentic access management to secure AI agents and non-human identities
Raised
$195M
Stage
S-B
Jazz
AI-powered data loss prevention that understands intent, context and risk
Raised
$61M
Stage
S-A
Sentra
Cloud-native data security for the AI era
Raised
$105M
Stage
S-B
Tines
The intelligent workflow platform to securely scale AI and automation, integrating agents, teams, and tools with speed and control.
Raised
$146.2M
Stage
S-B
Exaforce
Agentic SOC platform for real-time threat detection and response
Raised
$200M
Stage
S-B
Bold Security
Edge-AI endpoint security that turns every device into an active agent
Raised
$40M
Stage
S-A
Horizon3.ai
Autonomous penetration testing with NodeZero, run continuously at production scale
Raised
$178.5M
Stage
S-D
Second Front Systems
Game Warden delivers software to classified government environments fast
Raised
$152.1M
Stage
S-C
Novee
AI penetration testing that thinks like a real attacker
Raised
$51.5M
Stage
S-A
Alloy
The identity and fraud prevention platform for financial services, powered by Actionable AI.
Raised
$207M
Stage
S-C
Astrix Security
Identity security for AI agents and non-human identities
Raised
$70M
Stage
S-B
GitGuardian
Secrets detection and non-human identity security platform
Raised
$106M
Stage
S-C
Frame Security
Human risk security against AI-driven social engineering
Raised
$50M
Stage
Seed
Aurascape
AI-native security to discover, govern, and protect enterprise AI use
Raised
$50M
Stage
Seed
Mate
AI-native SOC that learns your environment and runs investigations
Raised
$15.5M
Stage
Seed
Lumia Security
Governance and control for enterprise AI agents
Raised
$18M
Stage
Seed
Sola Security
AI-driven no-code platform to build custom cybersecurity apps in minutes
Raised
$65M
Stage
S-A
Sweet Security
Unified runtime CNAPP for cloud and AI security
Raised
$120M
Stage
S-B
Tenzai
AI-powered penetration testing platform that runs full, end-to-end pentests autonomously
Raised
$75M
Stage
Seed