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How it works

Every agent. Every endpoint.

A sensor on each computer, a shield for every other device, and one console that ties the house together — on desktop, web and your phone.

GreyArm console overview
The console — live network status
01Detect

It knows what it’s looking at.

28 agent signatures and 30+ AI endpoints across 26 providers. Anything unnamed is caught by behaviour: an interpreter calling model APIs, a process fanning out to several providers, a browser with a debugging port open.

Coding agentsAssistantsAutonomous agentsMCP serversBrowser automationLocal LLMsAI scripts
02Understand

Ten rules. No black box.

Every alert comes from a documented rule, mapped to MITRE ATT&CK where it applies, with the raw evidence the sensor recorded.

GA-001Blocked agent runningA program you blocked starts again.
GA-002Unapproved AI agentSomething you haven’t approved reaches an AI service.
GA-003Multi-provider fan-outOne process talks to several AI providers at once.
GA-004Agent spawned a shellAn agent launches a shell or command-line tool.
GA-005Credential accessAn agent’s child process touches keys or secrets.
GA-006Possible exfiltrationLarge uploads while connected to an AI endpoint.
GA-007Automated browserA browser is being driven by a program.
GA-008New agentAn AI agent appears on a device for the first time.
GA-009Exposed model serverA local LLM is reachable by other devices.
GA-010Blocked lookupThe DNS shield stopped an AI lookup.
Agent investigation page
Agent file — identity, evidence and risk
03DNS shield

One switch. Every device.

Phones, tablets, TVs and consoles can’t run a sensor — but they all ask your network for directions. Turn on the shield in the desktop app, point your router at it, and every AI lookup in the house is visible, named to a device, and blockable.

04Contain

Approve, block, or stop it cold.

From the desktop, the web or your phone. The sensor on that computer terminates the process, adds a firewall rule for its AI endpoints, prevents it relaunching, or isolates the machine while keeping GreyArm connected — each step approved on the device and logged.

05Apps

Desktop, web and mobile. One account.

GreyArm on iPad
iPad — agents and evidence side by side
GreyArm alerts on iPhone
Desktop sensor
Windows 10/11 · macOS 13+ · Linux

Tray app with local console, containment and the DNS shield. Works without an account.

Mobile
iPhone · iPad · Android

Push alerts, one-tap containment, the network radar, and a tablet layout with side-by-side evidence.

Web console
Any modern browser

Every linked computer, agent and alert, with devices, account and billing management.

See your network the way GreyArm does.