Security control center · free with OS
All runtimes verified
Security you can actually see.
Sentinel is the runtime security control center for Culltron — loopback-only runtimes, scoped access, signed leases and transparent permissions. Local-first controls you own, with nothing hidden. In Ultra X26 and Secure, Aria explains every state in plain language.
Protected
4 runtimes · 0 alerts
Loopback-only runtimes
Enforced
Host allow-list active
On
Signed offline leases
Valid
Scoped file access
Reviewed
The security model
Honest, technical, local-first.
No marketing hand-waving. These are the real controls behind every Culltron runtime — and Sentinel lets you see and govern them.
Loopback-only runtime
Services bind to your machine, never the open network. No inbound surface to attack.
Per-user token
Every runtime is gated by a per-user token — no shared secrets, no anonymous access.
No CORS, host allow-list
Only explicitly allowed hosts can talk to a runtime. Everything else is refused by default.
Scoped file access
Apps get only the files and folders they’re granted — per-app, revocable, never blanket access.
Server-signed leases
Licenses and permissions are signed leases — accountable, verifiable, and offline-capable.
Transparent permissions
Every grant is visible and reviewable in Sentinel. Nothing happens silently in the background.
Control center
Govern every runtime from one place.
SentinelActive runtimes
Office Max
Scoped: ~/Documents
Bridge
Local endpoint · loopback
Culltron Browser
Sandboxed · host allow-list
Video Ultra X26
Scoped: ~/Projects · voice
Permissions
File access
Office Max · ~/Documents
Local network
Bridge · loopback only
Microphone
Video Ultra X26 · voice
Aria explainsUltra · Secure"All runtimes are loopback-only and leases are valid. Bridge granted Office Max scoped file access 2 minutes ago — tap to review."
Sentinel control-center preview. Aria's plain-language explanations appear in Ultra X26 apps and the Secure OS edition.
Trust, verified
Run with Sentinel watching.
Free with Culltron OS and central to the Secure edition. Loopback-only runtimes, scoped access and signed leases — the security model, made visible.
© 2026 Culltron. Engineered in South Africa. Local-first by design.
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