Security at the pace
of AI-powered attackers.

A full-stack Cyber Reasoning System that finds & fixes security risks, connects vulnerabilities into attack paths and prioritizes by business impact.

Talk to us

Trusted by engineers at

3 reasons to rethink your security.

Vulnerability reports
are rising.

Published high and critical CVEs from 21 major organizations. Through September 2026.

Attackers are getting
there first.

Mean days from disclosure to exploitation. Below zero means exploitation began before disclosure.

More is exposed
than teams realize.

+35%

More assets discovered than customers were tracking, on average.

$5 million

Average global cost of a data breach.

“By prioritizing vulnerabilities based on actual business impact and providing validated, actionable remediation, 0.security enables security teams to focus their resources where they matter most. A compelling AI-powered security solution for enterprise environments.”

Roman Haltinner

Partner & Europe West Cybersecurity Competency Leader, Switzerland, at EY

From your applications to the systems beneath them.

Discover previously unknown vulnerabilities (0-days) & known CVE testing.

Applications & APIs: Web applications, APIs, access controls, tenant isolation and business logic.
Source code: Injection, authentication, memory safety, exposed credentials and malicious code.
Systems & dependencies: Networks, identity, cloud infrastructure, dependencies, containers and sandbox boundaries.
AI, operating systems & kernels: Find 0-days in AI & LLMs, operating systems and the kernel.

PR security

We find vulnerabilities in pull requests and open new PRs with fixes.

Security testing

We find previously unknown (0-days) & known security issues, on demand or on a schedule.

Open-source foundation

Build on open source with our team for deployment, workflows and research.

Vendor software security Contact us

Find vulnerabilities in compiled vendor software, even without access to its source code.

24/7 CVE monitoring

Threat intelligence for your coding agents: catch compromised dependencies before they enter your codebase.

We have access to frontier cyber models

Anthropic
Cyber Verification Program

OpenAI Daybreak
Trusted Access for Cyber

Microsoft
Security Advisor

How the Cyber Reasoning System works.

Our security agents connect vulnerabilities into attack paths, verify what can be exploited and prepare fixes across your stack.

Explore an attack path

Tap below to follow the agents. You approve each next step.

Start with reconnaissance and discovery.

Reconnaissance
Vulnerability discovery
Exploitation
Privilege escalation
Lateral movement

Prioritize by business impact.

Focus on the security risks that matter most to your business.

Advanced remediation.

Move from verified findings to fixes with advanced remediation.

Your team stays in control.

Keep a human in the loop with optional approval steps throughout testing and remediation. Set testing windows and activity limits.

Deploy on your terms.

Frontier model providers

Our cloud

US or EU hosting.

Configured model access

Your cloud

Run testing and models in your own cloud.

Local model hosting

Air-gapped deployment

Keep testing and models in an isolated environment.

Model choices.

Choose your models, including local models.

Data protection.

Filter personal data (PII) before model processing.

Access & audit.

Manage access with SSO and audit logs.

Delivered where your team works.

Accepted by your operator

Technical & board reports

Technical findings and fixes, with clear board summaries.

Pull request

The fix, opened against your repo.

Integrations

Webhook & API

Into your SIEM, SOAR or any dashboard.

Dedicated white-glove support

Work directly with our team under agreed SLAs.

Custom features

Get features built for your needs and early access to new capabilities.

Compliance reports

Clear reports for leadership and SOC 2 audit preparation.

No false alarms.Only verified findingsand fixes.

Findings are independently reproduced in isolated sandboxes. Fixes are verified and risks prioritized by business impact.

Institutional-grade security: Agents can run without creating new risks.
Best-in-class security testing: Agents can find deep vulnerabilities.

Every agent gets its own sandbox.

Continuous security.
Tailored to your environment.

We work with software companies, large enterprises and defense organizations to find & fix security risks at the pace needed to defend against AI-powered attackers.