News for hackers. Stuff that matters.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by noelsusman on Thursday August 30, 2018 @07:42PM (#17881796)
Your only option is to refuse cards altogether because they've all been selling anonymized data on you for years. The big hedge funds pay big dollars for direct lines of data from the credit card companies.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by i1856511 on Thursday August 30, 2018 @08:33PM (#17882034)
A lot of attention in the press is given to Google et. al. about purchase profiling and tracking for ads. But the concept of purchase profiling has existed really since the invention of the credit card. As others have mentioned hedge funds have brokered this data for decades - but for some reason it has not been covered as excruciatingly as it has for tech companies. While I disapprove of the practice overall I would bet that tech companies are actually a more responsible steward (jail warden?) for this data than credit card bureaus, precisely because the spotlight is on them and also we have come a long way for data security in general.

There needs to be much more coverage of this in the contemporary press as it is applied to credit card companies, agnostic of tech co.'s making it a joint venture.

I believe credit card co.'s gave this process momentum early on and tech co.'s are just taking it and running with it.

The same can be said for Google location tracking vs. Verizon's straight-up selling that data as an asset.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by pm90 on Thursday August 30, 2018 @10:14PM (#17882389)
Yes non-tech companies have done this forever, but it was only when online tracking started that the amount of data you could collect on people exploded. And Google, Facebook etc. figured out how to monetize it much more effectively, generating the lions share of its revenues through such ads.

So IMO tech companies are well deserving of the criticism they’re facing.

Also, tech acts as a (mostly) reliable steward of this data because they can monetize it so well. If 90% of the revenues of Target came from advertising, we would probably not have had the massive leak of cc data. For most traditional businesses, this data is an additional source of revenue, not the primary one.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by derekp7 on Thursday August 30, 2018 @10:51PM (#17882540)
The reason tech companies get the spotlight is because there are times when the tracking is so much in your face. For example, if I look up specs on a pair of Bose headphones, I get plastered with ads for Bose for the next couple months (unless I flush my cookies, and/or browse anonymously or use an ad blocker). Yes, I know what is going on behind the scenes, but it still feels like stalking.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by tinus_hn on Friday August 31, 2018 @08:03AM (#17884800)
Such a useful idea as well, ads for the product you just bought and only need one of..
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by mrep on Thursday August 30, 2018 @09:52PM (#17882332)
It is somewhat ironic that Google is probably more privacy focused and has better security than any other company in the fortune 500 and yet they seem to get some of the most negative criticism here.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by ehnto on Friday August 31, 2018 @12:45AM (#17883011)
You can be extremely ethical about your factory farm but it's still a factory farm.

Google is in the business of utilising your data in the interest of advertising. No matter how you sugar coat it, the core of the business is tracking people and exploiting that data.

Are they doing their best to be careful and ethical? It sure seems like it, but that doesn't solve the issue.

The free services they and many tech companies provide for free are just payment for your data. The majority of people don't realise this implicit connection and many others do realise it but are happy with the transaction. But it's important to note that they undermine the ability to provide these services more ethically by setting a social norm of incredible services that are "free".

Edit: I will add that the cost and benefit to society of this kind of service provision is complex and nuanced, Google has obviously provided incredible value and society has decided that advertising is a fair price to pay, else they wouldn't be around still. But the true effects of immense tracking and advertising are still yet to play out completely.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by rrdelaney on Friday August 31, 2018 @01:00AM (#17883064)
Google is not in the business of selling your data. Google does not sell your data. It’s pretty clear in their privacy policy: https://privacy.google.com/how-ads-work.html

Disclaimer: I work at Google.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by kyboren on Friday August 31, 2018 @02:29AM (#17883385)
Oh, of course. Google is actually really benign. They don't sell your data. They just automatically scrutinize it in unfathomable detail to make as much money as possible when they pimp you out to anybody else who wants to manipulate you.

Please accept our sincere apologies--Google is such a nice company with a 100% ethical business model!

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by fwn on Friday August 31, 2018 @04:38AM (#17883926)
Parents point is valid in so far as that selling really is the wrong term for it.

If Google sold the data, someone else would have it. That would not only be awful from a privacy perspective, it would be desasterous for business.

It's primarily a case for precise language and not something to ridicule.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by TangoTrotFox on Friday August 31, 2018 @05:29AM (#17884126)
Like you mention one of the most obvious reasons that Google does not sell user information is because it would not make good business sense. These immense profiles they're building on everybody are part of their 'secret sauce' and simply selling those would not be good for business.

When they're choosing to not engage in behavior that no company in their shoes would engage in, it's hardly praise worthy and I think indeed that ridiculing it as a 'positive' for them is completely fair. So let's change the game a bit. If, somehow, their business changed or evolved such that selling user information directly was a profitable part of some business strategy - do you think they would still choose not to? What if I asked you, not that long ago, whether you think Google would be willing to build a search engine in China completely accepting (and thus arguably implicitly endorsing) all state level censorship engaged in by China?

I do think that Google at one time sincerely held the sort of anti-corporate-establishment view of 'don't be evil.' But it's much easier to moralize when you don't have the option of going against those morals to the tune of billions of dollars accompanied by immeasurable influence.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by nojvek on Friday August 31, 2018 @10:15AM (#17885742)
Don’t be evil ship sailed a long time ago. They’ve demonstrated over and over again that their stock price matters more than privacy of their users.

The way I see it, it’s a race to trillion dollar mark for AMZN, GOOG and MSFT now.

I have little expectations that they’ll do much to reverse their ad blasting and deep tracking trends.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by visarga on Friday August 31, 2018 @02:28PM (#17887793)
> the most obvious reasons that Google does not sell user information is because it would not make good business sense

On the contrary, it is a good business model and Google does it. They sell ad targeting, and targeting ads is based on accessing personal user data and making its results available to anybody who wants to pay. With each targeting of an ad the ad buyers can track more profiled users.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by joshuamorton on Friday August 31, 2018 @02:57PM (#17887959)
(I work at Google).

"selling your user data" implies that someone else has access. They don't.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by jellicle on Friday August 31, 2018 @05:44PM (#17888781)
If I target my ads to left-handed Hungarian mimes, and someone clicks on that ad and comes to my site, what do I know about that person? What user data has Google told me about them?

I provided money to Google. Google provided [people, or perhaps bots] and told me they were left-handed Hungarian mimes. The user's information has passed from Google to me. I just tagged that person "left-handed Hungarian mime" in my database.

Now, you can invent new words and call that something other than a sale, but...

The tech industry is great. Package up software, give it a SKU, put it in a store, have people come in, exchange money for it, and walk out: They're very happy to call that a sale, not a license, but a license is what it is. Happy to use the word "sale" when it confuses the customer and benefits them.

But start talking about selling user data to advertisers, nope, don't like the word "sale" any more, even though the advertisers are handing over money and walking away with data they are free to use. Odd.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by joshuamorton on Friday August 31, 2018 @06:26PM (#17888973)
Ok but is anyone doing that? Even if technically possible is that a violation of the ToS? (I don't know the answer to either of these questions, but I expect that the answer leans towards "no" for both).

>If I target my ads to left-handed Hungarian mimes, and someone clicks on that ad and comes to my site, what do I know about that person?

Nothing, unless they register there, and if your goal is to convert left-handed Hungarian mimes, then you probably know about your target audience already. You've learned something about a tracking cookie. That's only valuable if you can continue to track the user.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by mattkevan on Friday August 31, 2018 @06:00AM (#17884268)
They don't sell our data, they rent us out to the highest bidder.

More data means they can match us to clients better and charge a higher price for us.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by nojvek on Friday August 31, 2018 @10:11AM (#17885712)
This captures Google’s and FB’s business model perfectly.

Not matter how you sugarcoat it, if you work for Google or FB or any other ad blasting company, you help further the model of selling data of people’s private lives to the highest bidder and ad spam them throughout the internet for months.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by paperpunk on Friday August 31, 2018 @02:47AM (#17883455)
I'm not so sure it's so clear in that page you linked to. Google do also sell the largest analytics/user-tracking platform that exists (Google Analytics). That page you linked to seems to hinge around what constitutes 'personal information' which I'm sure others have differing opinions about but does go back to the parent's point: Google is in the business of selling your data. It maybe does it in a controlled way, segregating by client properties, or removing certain personally identifying information, but it's still selling your data.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by ehnto on Friday August 31, 2018 @02:27AM (#17883376)
You are right, selling is the wrong term. I will update my comment to use the word "utilising" instead.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by jvannistelrooy on Friday August 31, 2018 @06:01AM (#17884270)
It's a shame you're getting downvoted. There's nothing wrong with your comment, and it adds a useful argument to the discussion that's going on here.

I can only applaud Google employees who want to have a meaningful discussion here, and even disclose that they're working at Google.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by ehnto on Friday August 31, 2018 @06:57AM (#17884483)
It looks like they are back in the green now. I appreciate the dialogue it sparked and I can appreciate it takes a bit of courage to take part in a topic that's contentious toward where you work.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by Gaelan on Friday August 31, 2018 @01:05AM (#17883083)
You're right–people often conflate "selling" with "using internally to sell ads." There's a difference, and it's meaningful, but the point is that Google's business model is based on gathering and exploiting as much data about you as possible
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by rapnie on Friday August 31, 2018 @02:45AM (#17883444)
Yes. And isn't it also the case that, by offering their very elaborate targeting capabilities to advertisers, they still leak your personal data to 3rd parties, though indirectly? After all, the fact that a certain personalized ad appears in your page confirms to the advertiser that you are in their carefully crafted target group.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by skj on Friday August 31, 2018 @06:50AM (#17884458)
(I work for Google, but not on ads and I have no social knowledge)

I think that one thing Google tries to do is to make identifyingly small demographics not possible. As you say, that would leak personal info when the user clicked.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by icebraining on Friday August 31, 2018 @05:16AM (#17884090)
confirms to the advertiser

How would the advertiser know? Google is the one serving the ad.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by ehnto on Friday August 31, 2018 @06:59AM (#17884488)
Tracking referals. It's a key part of ecommerce advertising metrics to keep track of who came from what campaign.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by ma2rten on Friday August 31, 2018 @01:26AM (#17883170)
That's not true either, but that's a common misconception. Google makes the bulk of it's ad revenue from search ads. Two people issuing the same search query will see the same ads (for the most part). Hence, Google could still make money without user targeting - unlike Facebook.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by laumars on Friday August 31, 2018 @02:30AM (#17883387)
Two people making the same search query wouldn't even produce the same search results, let alone adverts.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by ma2rten on Friday August 31, 2018 @08:41PM (#17889464)
I'm surprised that this comment was downvoted so much. I actually work at Google. I don't know if anyone is still going to read this, but I thought I would comment just in case.

I said "for the most part". There are multiple reasons why different users can see different ads:

Ads might be geo targeted ("Only show this to users in New York.").

There is some stochasticity in the serving process. Ads can run out of budget. Different data centers might have cached different things in cache.

Different advertisers that are eligible to show for a certain query can bid different amounts depending on the user, for example though RLSA [1].

But anyway ads personalization is not essential to Google's business model (except display ads and maybe youtube ads).

[1] https://support.google.com/google-ads/answer/2701222?hl=en

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by laumars on Saturday September 01, 2018 @06:12PM (#17894157)
I like how you say "personalised ads are now essential aside all those times it is". The fact remains, personalised ads is always going to be far more profitable than non-personalised ads. You don't need to be an insider in Google to understand this. Moreover Google didn't even invent the concept of personalised adverts to begin with.

I'm old enough to remember when we had the same arguements about supermarket loyalty cards which track your purchases and sends out personalised deals. Now people just accept that happens but there was a massive uproar about it back in the 80s or 90s (I forget precisely when but it was a good few years ago now).

I honestly don't blame Google for doing what they're doing. It makes perfect business sense. What I do object to is Google employees (assuming you are who you say you are) trying to argue that Google don't make a business from personalised ads when it's pretty easy to prove they do and nearly every single member of HN has observed that it action. For the record, I also object to people argue who "X is definitely not y" while acknowledging that there are a whole plethora of examples where their arguement isn't completely factually accurate - that kind of dumb get out clause is just insult on everyone's intelligence.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by bogomipz on Friday August 31, 2018 @03:16PM (#17888071)
No they don't sell your data they just sell "access" to your data. The bits don't leave Google servers.

Your assertion and supporting link are nothing more than semantics though. But if those semantics make you personally feel better then fine. But I think there's very few people who think that such a semantic distinction matters.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by codedokode on Friday August 31, 2018 @11:43AM (#17886468)
As we found out, they buy the data - this time from Mastercard and collect a detailed profile of every user, maybe more detailed than 3-letter agencies have.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by sametmax on Friday August 31, 2018 @08:13AM (#17884845)
Indeed, they don't sell your data. They give it for free through deals such as PRISM.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by i1856511 on Thursday August 30, 2018 @09:55PM (#17882341)
Yes it is. Personally, I dislike tracking and don't mind disparaging Google for it - but I think in this case reporting like this manages to miss the heart of the problem and mischaracterize the situation.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by witten on Friday August 31, 2018 @01:37AM (#17883206)
If you want to still use a "credit card" online without being tracked by the MasterCards or Visas of the world (or even individual merchants), then check out https://privacy.com/ .. It lets you generate a new credit card number for every transaction if you want.

I'm not affiliated with them.. Just a satisfied user. (Although happy to hand out referral links.)

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by icebraining on Friday August 31, 2018 @05:20AM (#17884098)
How does that hide the data from Mastercard and Visa? Surely they must know who is behind every card number, otherwise who would they charge?
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by boling11 on Friday August 31, 2018 @10:53AM (#17886045)
Disclosure: I work for privacy.com

You can use pseudonymous billing info for the transaction. We then debit your underlying account afterwards.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by bencollier49 on Friday August 31, 2018 @05:03PM (#17888607)
Wouldn't that cause weird issues with rebates for faulty products?
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by witten on Saturday September 01, 2018 @12:14AM (#17890171)
If I understand the way the process works, no. The credit card is attached (via privacy.com) to a checking account via ACH. So if you get a refund (or perform a chargeback) on one of your credit cards, then the resulting funds are just deposited into your checking account.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by tonylemesmer on Friday August 31, 2018 @02:16AM (#17883328)
Anyone know if there's a similar service to Privacy in the UK?
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by ionised on Friday August 31, 2018 @04:22AM (#17883853)
I was wondering the same.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by TangoTrotFox on Friday August 31, 2018 @05:14AM (#17884084)
The issue is individual tracking vs aggregate tracking. Tech companies now a days are starting to target individuals based on their individual patterns. This is quite a bit different than aggregate tracking based on group trends. For instance if you see a link to a Credence Clear Water video after watching a video of Under the Watchtower, it makes a lot of sense. On the other hand if you see a link to a lecture from Leonard Susskind -- then that's going to be exclusively the result of personalized tracking and it feels invasive.

And the example I'm giving there is the most completely innocuous possibility there is. This gets much worse when, for instance, politicians will (and to some degree already are) creat[ing] multiple mutually incompatible versions of themselves to sell to different demographics and ultimately even individuals. That's not cool, and you can come up with far worse scenarios that this sort of individualized tracking.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by wiz21c on Friday August 31, 2018 @05:56AM (#17884255)
>>> but for some reason it has not been covered as excruciatingly as it has for tech companies.

The bank were not spending millions on the web talking how about they profile you to "improve your experience". They were mostly silent about that. That's why Google/FB/you name it is super for me : it says aloud what happens behind closed doors since ages.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by bigiain on Thursday August 30, 2018 @08:22PM (#17881980)
"anonymized"

100% deserves/needs scare quotes around that.

I mean just look at the snake-oil bullshit wording Google are using to describe what they do here:

"Before we launched this beta product last year, we built a new, double-blind encryption technology that prevents both Google and our partners from viewing our respective users’ personally identifiable information,”

I mean, I guess there are proper cryptographic means by which you could achieve something that matches that description.

But does _anyone_ trust the worlds biggest advertising company to be doing that???

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by TeMPOraL on Friday August 31, 2018 @05:05AM (#17884050)
"Anonymized" always deserves scare quotes, because there ain't such thing as "anonymized"; there's only "anonymized until correlated with other data sets".

Anyway. Yes, I do trust that of all parties, Google actually would both develop and deploy whatever that "double-blind encryption technology" is. Still, it's not the problem.

I think we need to stop dancing around the real issue with all that talk about PII. No, I really don't care about my PII just leaking somewhere. I care about what people do with them. It's what companies do with PII, "anonymized" or not, that's the problem. Advertising, upselling, price discrimination. Those are the real problems.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by spydum on Thursday August 30, 2018 @08:28PM (#17882011)
Out of all the other possible parties that could have attempted this? Yup, I'd say I trust them the most.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by taneq on Thursday August 30, 2018 @08:33PM (#17882035)
What Google can do and what they choose to do are two different things.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by bigiain on Thursday August 30, 2018 @08:35PM (#17882044)
I don't doubt one bit that they have people capable and probably even willing to get the crypto right.

I _strongly_ doubt they have the corporate will or motivation to actually put it into production. I'd go so far as to say "getting it right" is antithetical to their (enormously profitable and deeply entrenched) business model.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by spydum on Thursday August 30, 2018 @08:40PM (#17882069)
I don't know about that. Measuring ad impact is extremely valuable. What is interesting to me is the obvious bias of being the seller of ads as well as the impact measurement provider.. fox guarding the henhouse and all
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by tdb7893 on Friday August 31, 2018 @12:18AM (#17882922)
If they sold it to Mastercard as double blind I personally would trust them on it. Lying to consumers seems to turn out fine but lying to large corporations I would bet gets expensive and my experience is that a large org will bend over backwards to meet the letter (if not the spirit) of what they say.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by dgzl on Thursday August 30, 2018 @08:36PM (#17882050)
What you're probably worried about is an entity being able to fingerprint you based on a few simple data points and a profile of someone who fits those data points. Which is possible, and increasingly accurate.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by fosco on Friday August 31, 2018 @08:13AM (#17884840)
having sat during conversations at a large credit card company it turns out 4 to 5 transactions are all that is needed to identify a person.

meta data like where you made purchases when you made purchases and how much you spent and maybe a few other details are all you need 4 or 5 times to de-anonymize

full disclosure... I have 3 credit cards from this company....at this point I cannot imagine writing checks and carrying cash for daily use... I am not sure this battle can be won at this point.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by xapata on Thursday August 30, 2018 @08:37PM (#17882057)
Yes, I do trust them. They don't need PII to get value from this.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by dvfjsdhgfv on Friday August 31, 2018 @04:55AM (#17884005)
Other companies are different: Google is unique in the sense that they have - or if they want, they have enough data to build - an extremely rich and complex profile including very intimate details of a given person.

There is no other company (or a government agency) that knows exactly where you are, how you spend your time, what your precise interests are, what your fears and hopes are (based on your search history), your relationship network, including secret lovers, and so on.

Avoiding being tracked by Google is almost impossible these days, given that everybody uses Gmail, GA, Android and so on.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by njarboe on Friday August 31, 2018 @02:44AM (#17883443)
Credit cards know how much you spend at Whole Foods with a certain transaction amount. This I always assumed was tracked and could be used/sold by the credit card companies. This article tends to imply that MasterCard is getting the actual list of things that you buy at a store. I would hope that for this to happen the store must also be involved in selling the individual item list to the credit card company. I was hoping that stores were not doing this or I would have heard something about it, but maybe it would not really be news at this point in the data selling game.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by euske on Thursday August 30, 2018 @11:01PM (#17882586)
I think you could buy an anonymous prepaid/gift card periodically, though I don't know if there's any restriction that prevents you from buying certain things (probably you can't use it for airline check-in). Wish this kind of things could be done more easily in future.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by mpweiher on Friday August 31, 2018 @06:44AM (#17884434)
And that's one of the reasons Germans prefer cash.

I get products, I give money. The End.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by tomcooks on Friday August 31, 2018 @06:52AM (#17884473)
Where in Germany?

I have seen Germans using credit/debit cards for 100% of transactions; cash only seems to be more of a garlic-belt thing.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by mpweiher on Friday August 31, 2018 @07:10AM (#17884534)
Berlin, for example. When there's a card payment for groceries it tends to be tourists.
Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by qubax on Friday August 31, 2018 @09:22AM (#17885328)
> The big hedge funds pay big dollars for direct lines of data from the credit card companies.

Not just hedge funds. All finance institutions buy ( "share" ) data from and with each other. Even if you "opt out" ( we should be defaulted to opt-in rather than having to opt out but that's another discussion ), banks have a sneaky trick of slightly changing your ToS and giving you 30 days to "opt out" again. It's one of the reasons why every year, people get "new terms" in the mail. If you look closely, you'll see a slip of paper in the pile of papers about "privacy" rights and saying you have 30 days or so to let your bank know you don't want them to "share" your data.

Also, keep in mind that anonymized data is anonymous in a local sense, not a global sense. Even if PII is removed from one data vender, you can link anonymized data from a variety of data venders to "unanonymize" you. If you have one set of PII ( say like your employer ), then it's really effortless to link you with the anonymized data.

If you have search history from google, data dump from facebook and CC data, then one could pretty much peer into most people's homes and lives without much problem. You could know people better than their spouses do and in many instances, better than they do themselves.

The difference between a slave or serf and a free man isn't paid labor ( as even slaves were paid for their labor ), but the right to prevent intrusion into their lives. A free man had privacy. Slaves had no right to privacy. We are moving into a world with little to no privacy. Well not all of us. The wealthy are moving into a world of greater privacy.

Buying up islands. Highly walled and heavily guarded compounds. Opaque offshore wealth centers.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by gaius on Friday August 31, 2018 @03:16AM (#17883565)
The big hedge funds pay big dollars for direct lines of data from the credit card companies

They are looking for advance warning of something happening to the merchant, if they are a public company - not on you as an individual.

Re:Google and Mastercard Cut Ad Deal to Track Retail Sales by sitepodmatt on Friday August 31, 2018 @11:49AM (#17886521)
Wait, so for example hedge funds can buy aggregated data from BoA about how much is spent at Walmart on BoA CCs on a daily/weekly basis, wouldn't that data be very valuable prior to an earning call/report, somewhat like insider trading (but I guess not technically?)?