[GH-ISSUE #76] [Bug] Do not use locations with a too high uncertainty #48

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opened 2026-02-26 21:31:31 +03:00 by kerem · 3 comments

kerem commented

2026-02-26 21:31:31 +03:00

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Originally created by @Sorunome on GitHub (May 20, 2022).
Original GitHub issue: https://github.com/seemoo-lab/AirGuard/issues/76

So, I have this airtag on an item at home for which I frequently get false alarms for tracking, despite it not moving with me. It seems to me like it is using for location also points reported by android which have a very high uncertainty, mainly those only used via triangulation of cell towers. Since those have a very high uncertainty (often >500m), it does not really make sense to use this as a location, and instead rely more on a gps fix or thelike (<20m uncertainty? <50m? dunno). That way most if not all of my false positives could be avoided

Originally created by @Sorunome on GitHub (May 20, 2022). Original GitHub issue: https://github.com/seemoo-lab/AirGuard/issues/76 So, I have this airtag on an item at home for which I frequently get false alarms for tracking, despite it not moving with me. It seems to me like it is using for location also points reported by android which have a very high uncertainty, mainly those only used via triangulation of cell towers. Since those have a very high uncertainty (often >500m), it does not really make sense to use this as a location, and instead rely more on a gps fix or thelike (<20m uncertainty? <50m? dunno). That way most if not all of my false positives could be avoided

kerem closed this issue

2026-02-26 21:31:31 +03:00

kerem commented

2026-02-26 21:31:33 +03:00

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@BlackWolfWoof commented on GitHub (Jun 29, 2022):

I noticed when I am at work / school that my location jumps to a nearby university around 500m away too. My coworkers have a lot of apple airpods following me from class to class in the same building, thats why it triggered a tracking alarm and i noticed this behaviour.
I don't know if thats just my phone doing weird stuff with my location or if that is due to a too inaccurate measurement the app deemed as ok to use.

@BlackWolfWoof commented on GitHub (Jun 29, 2022): I noticed when I am at work / school that my location jumps to a nearby university around 500m away too. My coworkers have a lot of apple airpods following me from class to class in the same building, thats why it triggered a tracking alarm and i noticed this behaviour. I don't know if thats just my phone doing weird stuff with my location or if that is due to a too inaccurate measurement the app deemed as ok to use.

kerem commented

2026-02-26 21:31:33 +03:00

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@lbdroid commented on GitHub (Jan 10, 2023):

It SHOULD use locations with high uncertainty, but in doing so, should make sure that the distance between the beacons exceeds the sum of the two accuracies.

@lbdroid commented on GitHub (Jan 10, 2023): It SHOULD use locations with high uncertainty, but in doing so, should make sure that the distance between the beacons exceeds the sum of the two accuracies.

kerem commented

2026-02-26 21:31:33 +03:00

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@Sn0wfreezeDev commented on GitHub (Mar 23, 2023):

We updated our detection algorithm and location fetching to adjust for this

@Sn0wfreezeDev commented on GitHub (Mar 23, 2023): We updated our detection algorithm and location fetching to adjust for this