ProbeShield WiFi Security Scan

Discover every device on your WiFi network, scan for open ports, and get
a clear, AI-explained risk picture — all without creating an account or
sending a single byte to the cloud.

ProbeShield is a network security auditor built for people who aren't
network engineers. Point it at your home or small-office WiFi and it
finds what's actually connected, what's exposed, and what to do about it
— in plain English, not packet dumps.

WHAT IT FINDS
• Every device on your network — ARP, mDNS, and ping discovery catches
devices your router's own client list misses
• Open ports on each device, with the service behind them identified
• Default or weak credentials on SSH, HTTP, FTP, Telnet, and login forms
• A five-tier risk score (Critical / High / Medium / Low / Safe) per
device, so you know what to fix first

AI THAT EXPLAINS, NOT JUST LISTS
After a scan, an on-device AI (Gemini Nano) summarizes your risk picture
in plain language and reads it aloud if you want — no findings dumped
on you with no context. Tap into any vulnerability for AI-written,
step-by-step fix guidance.

ONE-TAP FIXES
Found UPnP exposing your network to the internet, or Telnet left open
on a router? ProbeShield can attempt an automatic fix directly, with
manual guidance if it can't.

BUILT TO BE TRUSTED WITH YOUR NETWORK
A security tool that phones home is a contradiction. ProbeShield:
• Requires no account and no sign-up
• Never sends scan results, device data, or network info to any server
• Only download: public vulnerability (CVE) data from NIST, about weekly
• Stores everything locally, encrypted where it matters (PIN/biometric
app lock via Android Keystore)
• Only scans the network you're connected to, and only when you tap Scan

WHO IT'S FOR
Home users who want to know what's actually on their WiFi. Landlords
and property managers auditing shared networks. Small business owners
without an IT department. Anyone who's ever wondered "wait, what IS
that device on my network?"

Requires Android 8.0 (Oreo) or higher.

Recent changes:
🛡️ v1.3.1 — Stability and security maintenance

• Fixed a status bar/navigation bar issue flagged for Android 15
• Patched a dependency vulnerability (CVE-2024-7254)
• Crash reports are now always sent automatically, so issues get fixed faster
• Bug fixes and reliability improvements