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Privacy software · GHOSTWALL_x beta for Windows

What they can't see,they can't take.

Lazarai builds privacy tools that run on your own device. Our first, GHOSTWALL_x, stops programs on your PC from quietly sending your data to AI services. No cloud, no accounts, no telemetry.

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From Lazarus, the one called back from the dark. Software that brings your data back under your control, and keeps it there.

Product 01

GHOSTWALL_x

A Windows tray app that stops programs on your PC from quietly sending data to AI services. It works inside Windows itself, through the Windows Filtering Platform, and everything it does stays on your device.

Step 1 of 3 · Choose

Pick what gets cut off.

Turn each AI service on or off from the tray: OpenAI, Anthropic, Google Gemini, Microsoft Copilot and Perplexity. Optional "Also block browsers" mode covers your browsers and extensions too.

GHOSTWALL_x · tray
OpenAI              ● blocked
Anthropic           ● blocked
Google Gemini       ● blocked
Microsoft Copilot   ○ allowed
Perplexity          ● blocked
Also block browsers  off
Step 2 of 3 · Block

Stopped inside Windows.

GHOSTWALL_x uses the Windows Filtering Platform to refuse new outgoing connections from the apps on your PC to the services you've blocked. Everything else keeps working normally.

PS> Invoke-WebRequest https://api.openai.com
  ✕ connection blocked · GHOSTWALL_x
PS> Invoke-WebRequest https://example.com
  ✓ 200 OK
Step 3 of 3 · Leave no trace

Nothing leaves. Nothing lingers.

No cloud, no account, no telemetry. Block rules are temporary and disappear when the app quits, so a bug can't leave your PC stuck. Turn on "Start with Windows" and it comes back at login.

ghostwall · privacy
cloud               none
account             none
telemetry           none
rules               removed on exit
start with Windows  optional
How it works
  • GHOSTWALL_x runs entirely on your PC. There's no cloud service, no account and no telemetry.
  • It sets block rules inside Windows itself, through the Windows Filtering Platform.
  • It refuses outgoing connections from the apps on your PC to the AI services you choose: OpenAI, Anthropic, Google Gemini, Microsoft Copilot and Perplexity.
  • Each service has its own switch. "Also block browsers" extends the block to your browsers and extensions.
  • Rules last only while the app is running and are removed when it quits. "Start with Windows" brings it back at login.
  • It protects what leaves your own PC. Sites and services you haven't blocked work as usual.
Why Lazarai

Your data should stay yours.

More and more of the software on your computer talks to AI services in the background, and it rarely asks first. Once your data leaves your machine, it's out of your hands.

Lazarai exists to give that control back. GHOSTWALL_x is the first tool. More are coming, all built on one rule: what's yours stays yours.

Syracuse, NYHeadquarters
Rust · Tauri · SvelteBuilt with
Windows · BetaPlatform

Go invisible first.

Join the waitlist for early access to the GHOSTWALL_x beta and pre-sale pricing.

Called back · Lazarai