Privacy-Conscious Users
Review smart devices, WiFi exposure, strong transmitters, and acoustic signals in private rooms.
SignalGhost Android Tester Program
SignalGhost. Room signals, reviewed locally.
Help test SignalGhost, GreyNOC's defensive room privacy scanner for Android. Run local checks for WiFi exposure, paired Bluetooth, acoustic and ultrasonic indicators, and telecom hardening.
Test Targets
Surface privacy signals without overclaiming what a phone can prove.
SignalGhost runs in spaces you control. Test whether it spots useful signals and hardening gaps without overstating what a phone's sensors can prove.
Track 01
WiFi Review
Scan visible access points, hidden SSID indicators, weak/open networks, and very strong nearby transmitters.
Track 02Bluetooth Devices
Review paired and nearby device behavior within Android's permission limits.
Track 03Acoustic Signals
Test microphone sampling for noise floor, narrowband tones, ultrasonic energy, and pulse-like indicators.
Track 04Checklist Flow
Run the telecom hardening checklist for SIM swap, voicemail PIN, call forwarding, and non-SMS MFA guidance.
Who Should Test
For rooms, offices, travel, and sensitive conversations.
Test in places you control or are authorized to inspect: homes, small offices, vehicles, and short-term spaces.
Hotels And Temporary Spaces
Run quick checks in rooms, vehicles, rentals, or short-term work areas where signal context changes.
Small Teams
Use hardening guidance before sensitive meetings, client calls, and device-heavy office setups.
How To Join
Request access. Scan a room. Compare results. Report.
Complete the signup form with your Google Play tester email, Android device, Android version, and whether you can test WiFi, Bluetooth, microphone, sensor, or telecom-checklist behavior.
Submit Form
Choose SignalGhost in the tester form and include your Google Play account.
Install Build
Use the tester install link after your account is added.
Run Checks
Compare quiet rooms, device-heavy rooms, travel spaces, and known baseline environments.
Send Findings
Include permissions, Android version, room context, scan type, confusing results, and steps to reproduce.
SignalGhost stays defensive.
Keep tester notes focused on safe local indicators, false positives, permission friction, and plain-language recommendations. Do not request packet capture, decryption, SIM cloning, access-control bypass, or offensive telecom tooling.