1. Facebook stores the current WiFi you’re connected to and uses this data from everyone to build its data set of WiFi routers …
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2. Facebook already has a dataset of WiFi hotspots it purchased/obtained and uses that based on location/proximity to current WiFi network …
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3. Facebook uses (with or without Apple’s permission), private APIs to get the list of nearby WiFi networks …
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…If what the person reported here is accurate (WiFi is off, location is off), then either FB is faking it or it’s #3. Other ideas welcome.
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I would say #1 is very likely. And 2 as a jump start for an internal DB. Plus crossing android, iOS, web data
Thanks. Twitter will use this to make your timeline better. UndoUndo
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