How ads weirdly know your screen brightness, headphone jack use, and location, with Tim Shott (Lock and Code S06E05)

The report covers a breach of location data at broker Gravy Analytics, which allegedly exposed billions of location signals tied to up to a billion mobile devices; the leaked dataset referenced many popular apps, raising concerns that users' location data was collected and sold without app vendors' knowledge. The piece discusses responses from affected app vendors denying direct relationships with the broker and highlights an independent researcher who demonstrated rapid leakage of precise location data from seemingly unrelated mobile games.