Security
A primary internal company segment within Cybersecurity, derived deterministically from the shared yc industry “Security”. This is a classification of current window members, not a causal layer or a separate time trend.
8/810 → 12/623; +0.94 percentage points of formation share.
Veria Labs is developing AI agents that hack better than the best human hackers. Founded by members of the #1 US competitive hacking team, we've already found critical bugs in AI tools, operating systems, fintech and billion dollar crypto exchanges. Now we're scaling that expertise through AI-native security tooling that operates faster than human researchers while finding deeper, more complex vulnerabilities that traditional tools miss.
Use AI tools like ChatGPT, Claude, and Gemini safely without leaking sensitive data. LogosGuard redacts your private information before the prompt ever leaves your device.
The most flexible enterprise compliance engine that makes GRC teams 10x more efficient. Already trusted by global leaders and the largest EU enterprises. What it does: - Extracts requirements from any file - Maps them to controls and policies - Shows gaps and monitors changes - Advises on maturity and next steps
Antigen is an AI adversary for the enterprise. It maps, exploits, and secures your attack surface through nightly automated offensive testing and monthly human red team assessments. Every finding is delivered with traces, reproduction steps, and remediation directly in GitHub, Linear, or the Antigen Platform. We work with companies in financial services, healthcare, retail, and government where security is trust. We're backed by Lightspeed, DST Global, and Susa Ventures.
ContextFort gives security teams visibility and controls for AI browser agents. It’s a Chrome extension that: Detects when an AI agent takes control of the browser Records every action during the session (pages visited, clicks, text entry) Provides controls to prevent risky actions and cross-site data leakage
We emulate the attacks real adversaries run today: help-desk vishing, deepfaked executives, MFA fatigue, and the payloads that follow. We run them against your people and the controls around them to reveal what is actually exploitable, not what looks compliant. Then we close the gap, retest until the fix holds, and give your leadership the evidence that risk actually went down. From initial access to remediation.
MindFort is building fully autonomous AI agents powered by their in-house models that can find, exploit, and patch complex vulnerabilities in web applications at massive scale. MindFort agents use the same principles as human penetration testers to understand their target and figure out the best ways to work together to exploit it. We can do fully autonomous AI web pentesting and bring offensive security to teams out numbered. While security teams were already behind with legacy tools and processes, AI coding is make the problem worse. AI generates code far faster than human teams can secure it; MindFort can match that speed and scale. Our agents will become critical as organizations scale up development with AI.
Probo acts like your compliance team. You tell us how you work, and Probo does the rest: 1. Set the right requirements - not overkill 2. Handle docs, risks, controls, evidence 3. Run the audit 4. Keep everything up to date afterward Founders shouldn’t lose weeks to this stuff. Even one day is too much.
Cotool builds AI agents and the infrastructure around them to help security teams detect threats, investigate alerts, hunt for attacks, and respond. Our agents work across a team's security tools and data. They investigate alerts, write and tune Python detections, and turn threat intelligence into hunts and new coverage. Teams can customize agents around their workflows, inspect the evidence, edit detection logic, and bring humans in when judgment or approval matters. Underneath the agents, Cotool provides log storage and search built for their workloads, with access to data where it already lives. The goal is to give security teams more capacity to defend their companies as their environments and workloads grow. Teams at Ramp, EliseAI, ClickHouse, Legora, and many more use Cotool.
Leverage cutting-edge AI to detect exposed credentials in real time and protect your organization from high-impact data breaches.
A primary internal company segment within Cybersecurity, derived deterministically from the shared yc industry “Security”. This is a classification of current window members, not a causal layer or a separate time trend.
A primary internal company segment within Cybersecurity, derived deterministically from the shared yc tag “Compliance”. This is a classification of current window members, not a causal layer or a separate time trend.
Measured-window members of Cybersecurity that could not be assigned to a narrower shared YC tag or industry without forcing a classification.
No comparable outside activity is connected yet.
Cambrian Signal, “Cybersecurity,” publication yc-2026-10-22-semantic-v8, snapshot October 22, 2026.
cambrian.jafar.com/formation/cybersecurity