Free Android app lets users detect Apple AirTag tracking
A small team of researchers at the Darmstadt University in Germany have published a report illustrating how their AirGuard app for Android provides better protection from stealthy AirTag stalking than other apps.
An Apple AirTag is a Bluetooth-based device finder released in April 2021 that allows owners to track the device using Apple’s ‘Find My’ service.
Unfortunately, AirTags have great potential for abuse due to their small size as people can slip them into people’s jackets, luggage, or even cars to track them without permission.
Although Apple has implemented an intricate anti-stalking system to prevent cases of abuse, stealthy AirTag tracking continues to remain a problem.
These features rely mainly upon identifying patterns of abuse, such as having an AirTag nearby that belongs to a different Apple account and serving warnings on the victim’s iPhone.
Apple constantly updates this system with stricter rules and additions, but as hardware hackers have proved repeatedly, there are many ways to evade detection and disrupt the warning routines.
In the case of Android users, the problem is magnified because Apple left them without an official way to locate AirTags until December 2021, when it released Tracker Detect on the Play Store.
Tracker Detect, however, pales in comparison to its iOS counterpart, as it will only inform the victim they are tracked if it’s commanded to perform a manual scan, and even then, it often misses nearby AirTags for no apparent reason.
A superior solution
The university researchers decided to do something about the Apple AirTag privacy problem in the Android world and reverse-engineered the iOS tracking detection to understand its inner workings better.
They then designed the AirGuard app, a fully automatic and passive detection anti-tracking solution that works against all Find My accessories and other tracking devices.
The app was released in August 2021, and since then, it has amassed a user base of 120,000 people. It can detect all Find My devices, including self-made ones like the cloned or modified AirTags, as the ultimate stealthy tracking tool.
The researchers have now published the…
