● Free download · Windows & Linux

Posture Scanner

A small program you download and run on your own computer. It checks your machine's security settings — firewall, disk encryption, updates, accounts, and more — and tells you, in plain English, what's solid and what to fix.

🔒 Everything stays on your machine. The scan runs locally and the results are shown to you only. Nothing — no findings, no inventory, no telemetry — is ever sent to ByTE X Bit or anyone else. No account, no cloud, no phone-home.
⚠ Windows may show a security prompt — here's why (and it's fine)

This tool is new and not yet code-signed, so the first time you run it Windows may show a blue "Windows protected your PC" screen. This is normal for new software from small publishers and does not mean the file is unsafe.

To run it: click "More info," then "Run anyway."

Official code-signing is on the way, which will remove this prompt entirely. Each release also ships with a SHA-256 checksum (SHA256SUMS-0.2.3.txt) so you can verify the download hasn't been tampered with. macOS support is coming.

How to run it

Windows

Double-click the downloaded
bxb-scan-0.2.3.exe
A menu lets you pick:
  1) this computer only
  2) computer + local network
then offers to save a report.

Linux

chmod +x bxb-scan-0.2.3
./bxb-scan-0.2.3
(shows the same menu; or use
 --host-only / --network / --html)

The menu offers to save an HTML report you can keep or print (or pass --html report.html directly). It runs fine as a normal user; on Windows, a few checks (like BitLocker) show more detail when run as Administrator.

What it checks
Host firewall — on or off
Disk encryption — BitLocker / LUKS
Endpoint protection — antivirus active
Updates — auto-update & pending patches
Admin accounts — how many have admin
Risky settings — SMBv1, SSH root login
Installed software — inventory
Local network — passive device discovery (opt-in)
Plain-language fixes — for every gap
By default it checks the computer it runs on. Add --network for passive local-network discovery: it lists devices using your computer's ARP cache and standard service-discovery (SSDP/UPnP) — it never scans ports and stays on your local subnet. Active port scanning is a separate, opt-in step coming later, and it will always ask you to confirm it's a network you're authorized to scan.

Found something worth fixing?

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Get help securing your systems →

🔒 Read-only and local-only. The scanner inspects settings and never changes anything. By default it makes no network connections; the opt-in --network mode only does passive discovery (no port scanning). Open source under the Apache License 2.0.