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Illustrative sample workspace · example data only · not Culltron pricing or customer data · no live device or release state

Sentinel
Launch-candidate security visibility
Bounded local checks

Security you can actually see.

Sentinel is a launch-candidate local health and security visibility tool for Culltron — hashes, update guidance, bounded on-demand scans and transparent permissions. It is not antivirus, EDR or continuous fleet protection. Ultra X27 Aria explanations remain release-gated.

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.

Sentinel
Live
Active runtimes
Office Max
Scoped: ~/Documents
Verified
Bridge
Local endpoint · loopback
Verified
Culltron Browser
Sandboxed · host allow-list
Verified
Video Ultra X27
Scoped: ~/Projects · voice
Review
Permissions
File access
Office Max · ~/Documents
Local network
Bridge · loopback only
Microphone
Video Ultra X27 · 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 X27 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. BYO voice provider ready