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Anti-Surveillance (Device Scout)

Anti-Surveillance mode detects surveillance infrastructure and tracking devices in your environment. It is designed to help you identify whether you are being tracked or monitored by analyzing the Bluetooth devices that appear near you over time.

How to Use

Start a wardrive session and select Anti-Surveillance mode
Choose how to handle the Pre-Scan Baseline prompt (see below)
Go about your normal routine – drive, walk, or bike your regular routes
The system passively scans for surveillance devices and analyzes patterns in the background
Review your results when you are done

The longer you run a session, the more data the system has to work with. Short trips may not provide enough location changes to identify followers.

Pre-Scan Baseline

When you start an Anti-Surveillance session, you are asked how many seconds to run a pre-scan baseline before follower detection begins. The slider goes from 10 seconds up to 5 minutes; 1 minute is a good default.

Every device that is seen during the pre-scan window is automatically added to your safe list for that session and will never be flagged as a follower, no matter how long it stays around you. This is how you exclude the harmless devices that live where you start your trip – your own router, the neighbor’s smart bulb, the wearable on your wrist, the coffee shop’s beacons – so they don’t generate false-positive follower alerts later.

You have three choices on the dialog:

Start Pre-Scan – run the baseline for the chosen number of seconds, then follower detection begins on whatever appears after that.
Skip – jump straight into follower detection with no baseline. Use this when you have moved to a fresh location and there is nothing nearby you trust.
Cancel – back out entirely without starting Anti-Surveillance.

While the baseline is calibrating, a blue PRE-SCAN – baseline calibrating banner appears above the live stats with a countdown and progress bar. The banner disappears the moment the baseline finishes; follower detection runs normally from that point on.

If you stop the session during the pre-scan, the session ends just like any other.

What It Detects

Flock/ALPR Cameras

Automated license plate reader cameras from Flock Safety and similar vendors. These cameras are mounted on poles, signs, and sometimes vehicles, and they record every license plate that passes by. Anti-Surveillance mode logs their locations as you encounter them.

Bluetooth Trackers

Apple AirTags, Tile trackers, and other BLE-based tracking devices. A single sighting is not cause for concern – these devices are everywhere. The system looks for patterns of repeated proximity across different locations.

Persistent Devices

Any Bluetooth device that appears near you repeatedly as you move through different areas. This is the core of the follower detection system.

Follower Detection

The anti-surveillance engine tracks which devices appear near you at multiple separate locations. A device seen once at a coffee shop is normal. The same device showing up at the coffee shop, your office, and your home is a pattern worth investigating.

Here is how it works:

Each BLE device that comes into range is logged with a timestamp and GPS location
As you move to different locations, the system checks whether any previously seen devices reappear
A device that follows you across multiple distinct locations is flagged as a potential follower
Sensitivity is configurable – you can adjust how many encounters trigger an alert

Threat Scoring

Each potential follower receives a threat score based on three factors:

Number of encounters – How many separate locations the device has appeared near you. More locations means a stronger pattern.
Time span – How long the device has been following you. A device seen across hours or days scores higher than one seen twice in quick succession.
Proximity pattern – A device that is consistently close to you (strong signal) scores higher than one at the edge of detection range.

Threat Levels

Based on the threat score, each flagged device is assigned a level:

Low

The device has been seen in a couple of locations. This could easily be a coincidence – a neighbor’s commute overlapping with yours, or a shared parking garage. Worth noting, but not necessarily cause for alarm.

Medium

The device has been detected across several locations with a pattern that suggests possible tracking. This warrants closer attention. Consider varying your routes to see if the device continues to appear.

High

A strong, consistent pattern of the device following you across many locations over a significant time period. This is the strongest indicator of deliberate tracking and should be taken seriously.

Reports

After a session, you can review detailed reports on what was detected:

Session threat report – A summary of all flagged devices, cameras encountered, and overall findings from the session
Individual follower profiles – Tap any flagged device to see its full encounter history: every location and time it was detected near you
Map visualization – A map view showing where each encounter occurred, making geographic patterns immediately visible
Export as JSON – Export the full report data as a JSON file for further analysis or record-keeping
Share – Share reports directly from the app using your device’s standard share sheet