We sent you this ad because we know you like hentai and “we asked Google to look through their data and show ads to hentai watchers” is a distinction without a difference when it’s equally uncomfortable that Google is looking at this information as it would be for Google’s clients.
I hope you have some information backing this claim.
For two, you can look up Google’s history of fighting back against court orders to access customer data. There wouldn’t be much point in that if this data was just “available to advertisers and government agencies”. Except maybe PR, which going back to point one.
For three, Snowden’s leaks revealed that the NSA installed fiber taps in Google datacenters to steal this data, precisely because Google wouldn’t give it to the NSA without a valid warrant. Google has since publicly claimed that they have encrypted all traffic on their internal network.
“Google sells your data!” is an old meme, but a tired one, and not one that stands up to inspection.
Does that mean much? Google would not be so foolish as to hand over everything at once, when they could do something else that allows them to sell it, or the use of it, again and again. They doubtless have a hundred ways, each more clever than the last, to sell it again and again. Since they control the whole apparatus, they can make full use of all your history at all times without revealing to advertisers anything that would allow Google to be bypassed next time.
So, Google's pledge is simply that every use of your data will necessarily involve paying Google again. And, anything at all that can help Google uniquely identify you with activity anywhere online certainly is collected into your file, the use of to be dold for what the traffic will bear.
Your ISP has a different set of incentives.
> Your ISP has a different set of incentives.
Indeed, ISPs are known to wholesale sell their user’s traffic history.
I'm not even saying that Google is selling it, I'm just arguing that it makes practical sense to me to have that assumption from a privacy standpoint.