Modernize the legacy systems you can't afford to break.
Churchill runs only what you approved. Everything else is diverted to a kernel-level mirror envelope, logged and recorded, never touching production. Patch, update, and modernize critical infrastructure without breaking it.
Ransomware. Malware. Supply chain compromise. Credential theft. Insider misuse. Autonomous AI attack. Kernel zero-day. Config drift on legacy systems. Churchill's Protocol stops every one of them at the kernel of your most critical systems. What runs is what your governance board approved. Every time. Continuously. Anything else is blocked before it executes.
The attack never reaches production.
It's diverted to the mirror envelope, recorded, and the business keeps running.
Even with root, no one moves your crown jewels alone.
Adversarially tested through Anthropic's Cyber Verification Program.
How Churchill compares to the rest of the stack.
Where Churchill operates relative to every other layer of the security stack.
| Layer | Tooling | Mechanism | Timing & Scope |
|---|---|---|---|
| Application | EDR, SIEM, RASP, WAF | Observes application activity and network traffic. Recognizes known attack patterns from what it sees. | After execution. Generates alerts for review. |
| Identity | IAM, sudo, RBAC | Verifies who is requesting access by checking credentials. | Before access. Identity-based decisions. |
| File integrity | FIM | Detects when monitored files have been modified on disk. | After modification. Alert-based. |
| Binary execution | Whitelisting | Checks each executable's digital fingerprint against an approved list before it runs. | Pre-execution. Each executable checked individually. |
| OS hardening | Linux Security Modules | Enforces predefined rules about what processes are allowed to do on the operating system. | Rule-based. At specific operating system decision points. |
| Runtime clearance | Churchill | Verifies the protected application against the version your Change Advisory Board approved (recommended members: CTO, CISO, Release Manager). Continuously, while it runs. | Pre-execution. Full application. Every action. Requires governance, by design. |
| Firmware | Secure Boot, TPM | Verifies the system's boot sequence has not been modified, using hardware-based trust. | At system startup only. |
This is not a CISO buying a security tool. It is a CFO redirecting modernization capital.
Regulated industries have already budgeted hundreds of millions for legacy system replacement to meet compliance mandates. Churchill lets the CISO walk into the CFO's office with a different question: What if we verify the existing system stays compliant, instead of replacing it?
- Same budget category. Capital modernization spend, already allocated.
- Verify rather than replace. The system stays. Compliance is proved structurally, not reconstructed.
- Faster deployment. Minutes to install and lock an application, not an eighteen-month system replacement.
- Lower risk. No operational disruption. No migration. No re-certification of a new platform.
- Zero-trust enforcement on the crown-jewel application, at the kernel.
- Insider threat detection with pre-execution evidence packages.
- Continuous compliance verification across the regulatory regime that applies.
- Audit becomes structural proof, not narrative reconstruction.
The insider doesn't see us coming.
An insider attempts an unapproved change. Churchill blocks it pre-execution and diverts the action to a kernel-level mirror. The attacker keeps working, revealing their playbook. Production is never touched.