Gotta go deeper and scan the bank transactions going through your phone. Why not just watch your screen and build a model of everything you do. It's a slippery slope ... of extrapolation.
Sight Piracy as the reason, but get better conversion tracking for those sweet Ad clicks. We all know which companies would be drooling at the prospects of this.
Sadly this isn't hypothetical, Card companies have colluded with the data hoarders in the past for this exact purpose.
https://www.consumerreports.org/privacy/how-to-turn-off-smar...