Yikes, the creepy online ads that follow your offline real world activities finally caught up to me after successfully evading this for 5 years. It appears to be a Bluetooth information leak exploited by the Twitter app to display an Apple App Store ad.
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It’s an App Store ad for GrubHub, shown while visiting a restaurant where a GrubHub van was picking up food. I’ve never used GrubHub and never seen an ad from them or Apple ever before. I wonder if this is Twitter exploring a Bluetooth info leak or if Apple is in cahoots.
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Replying to @thomasgermain
I should have disabled Bluetooth. Zero apps have Bluetooth permissions on my device though, so if that’s the attack vector then I don’t know how they made the mapping between identifiers and people. AT&T is the other possible culprit, but I’m >1 mile from the nearest tower.
4:26 PM - 6 Feb 2020
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