An AI security engineer on every machine.
We work in the kernel, below the reach of any AI, and stop harmful actions before they run.
Free for individuals. Linux today, Windows next.
Every way in — symlink, hardlink and rename included — refused before a single byte is read.
One protected file, seventeen bypass attempts — all denied at the kernel
The blind-spot filler for your security stack
Endpoint tools see syscalls. Network tools see API traffic. Ring Zero sees the causal chain from a compromised prompt to a credential exfiltration — and blocks it.
Real-time Agent Monitoring
Every active AI agent session — kernel events, prompt/response content, file access, network connections. Live dashboard for your security team.
Works with Any Agent
Claude Code, GitHub Copilot, Cursor, Codex, custom LLM agents. Ring Zero intercepts at the kernel — no SDK changes, no agent modifications.
Attack Chain Detection
Multi-step provenance graph correlates prompt injection with downstream OS actions. Detects chains that EDRs see as unrelated events.
Deploy script needs SSH key for remote push
Schema migration requires DB snapshot
Local dev domain routing
Vulnerability-Aware Enforcement
Real-time OSV vulnerability checking on package installs. Exploit context persists in the provenance graph for behavioral correlation.
Your EDR catches abnormal outbound traffic — meaning it detects the consequence after the injection already ran. Ring Zero detects the injection at the kernel layer before the exfiltration completes.
Ring Zero SecurityAI Agent Runtime Security
See what your EDR misses.
Prompt injection, credential exfiltration, multi-step attack chains — detected and blocked at the kernel layer.
Kernel-enforced guardrails. Not another proxy.
Application-layer tools intercept via API proxies — effective until an agent spawns a subprocess or uses a path that bypasses the proxy. Ring Zero enforces at ring zero, where every process must pass.
Kernel-Level Enforcement
Ring Zero sits at ring zero — the kernel. eBPF hooks intercept every file access, process spawn, and network connection before any application-layer bypass is possible.
Global Fleet Visibility
One dashboard for every agent session across your entire organization. On-prem, cloud, or air-gapped — no telemetry leaves the host unless you allow it.
Don't take our word for it — run it.
The enforcement claim is testable. Read every line, run the demo, and watch the kernel refuse.
Run the demo
Seventeen ways to read one protected file — every one refused at the kernel, on your own machine.
See the demo scriptsRead every line
The whole product is open source — the kernel programs under GPL-2.0 and the daemon, CLI and app under Apache-2.0. Nothing to take on faith; the enforcement path is right there to read.
Map it to your threat model
The enterprise-AI threat model — trust boundaries, the human-workflow and autonomous-agent threat tables, and the control mapping — as a shareable reference for your security team.
Frequently Asked Questions
Everything you need to know about Ring Zero Security.
