# How is Cyber Crucible different from EDR, XDR, and MDR?

**Short answer:** EDR, XDR, and MDR are detection-and-response tools: they observe an attack, generate an alert, and rely on a human or a cloud service to decide what to do. Cyber Crucible is a prevention tool: it decides autonomously on the endpoint and stops the malicious process in under 200 milliseconds, before damage occurs.

## The practical differences

| | EDR / XDR / MDR | Cyber Crucible |
|---|---|---|
| Response time | Minutes to hours | Under 200 milliseconds |
| Detection method | Signatures and historical data | Behavioral intent, no signatures |
| Zero-day coverage | Partial | Built for unknown threats |
| Human dependency | High — analysts and SOCs | None — fully autonomous |
| Where decisions happen | Cloud analytics | Locally, in the kernel |

## Why the gap matters

Detection tools were designed for an era when attacks unfolded over hours or days. Automated attacks now complete in seconds. A tool that produces an accurate alert after the data has been exfiltrated has documented the loss, not prevented it.

This isn't a claim that detection has no value — forensics and investigation matter. It's that detection alone cannot stop a machine-speed attack.