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Ask HN: I bought Voltaren at the chemist, now Google shows me ads for it. Why?

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Re: Ask HN: I bought Voltaren at the chemist, now Google shows me ads for it. Why?

#61

Earlier quoted context omitted.

Sure, but I don't think they're listening from a technical standpoint, because the battery consumption is much less than an active network adapter would consume.

They could always either compress the audio or do a speech to text (looking for keywords rather than caring about getting the whole context correct), and batch upload the results on an interval (like when checking for email or app/system updates).

That would still absolutely kill the battery.

Re: Ask HN: I bought Voltaren at the chemist, now Google shows me ads for it. Why?

#62
post #47
post #29

Opt out of VISA marketing https://marketingreportoptout.visa.com/OPTOUT/request.do Second, disable GPS, and cellphone tower ID reporting (root needed.) So Google can't correlate you with sales records. At the moment, there is no way to disable Google AGPS spying on the stock Android. Third, block Google apps from reading your IMEI/IMSI/serial number, so they can't get AGPS data from your cellphone provider if it sell…

>VISA marketing Why is this even a thing? Maybe I should just go back to buying everything with cash, it's impossible to keep up with all the crap we need to disable or hack around

> Why is this even a thing? Maybe I should just go back to buying everything with cash, it's impossible to keep up with all the crap we need to disable or hack around

And some agencies may be more interested in these exclusion databases. So I don't think there is any way to get out of this maze. When you sign up to exclude from a list, you get included in many other.

Re: Ask HN: I bought Voltaren at the chemist, now Google shows me ads for it. Why?

#63
I suspect all the people putting this claim on the same level as "my phone is listening to me" conspiracy theories are living outside of the USA.

One of the first things I noticed after moving to America was that I was being served ads for oddly specific in-store purchases. I checked my bank's terms and discovered that, sure enough, they were sharing my transaction history with "non-affiliates" so that they could market to me.

From memory, they did offer opt-out methods for limiting the amount of data that they shared. Maybe you could see if your bank offers the same?

Re: Ask HN: I bought Voltaren at the chemist, now Google shows me ads for it. Why?

#64
As others have explained, this is most likely your credit card purchasing data being sold, by your credit card issuer, to any interested party willing to pay for it. Yes, the data sold includes detailed product information linked to your identity.

What I'd like to know is if the same happens when I pay with Apple Card, or when I use Apple Play with, say, a VISA card?

Re: Ask HN: I bought Voltaren at the chemist, now Google shows me ads for it. Why?

#66
post #29

Opt out of VISA marketing https://marketingreportoptout.visa.com/OPTOUT/request.do Second, disable GPS, and cellphone tower ID reporting (root needed.) So Google can't correlate you with sales records. At the moment, there is no way to disable Google AGPS spying on the stock Android. Third, block Google apps from reading your IMEI/IMSI/serial number, so they can't get AGPS data from your cellphone provider if it sell…

Also google may read your email (if you are using gmail) - which contains your bank receipt (so seller), time and amount.

https://support.google.com/mail/answer/6603?hl=en

> We will not scan or read your Gmail messages to show you ads.

Re: Ask HN: I bought Voltaren at the chemist, now Google shows me ads for it. Why?

#67
In America, some stores seem to share rewards member information to product companies so they can target their ads on other platforms. For example, I paid for a very specific candy from CVS using my credit card, but used my partner's CVS rewards member number and they got ads on facebook for that candy while I haven't seen a thing.

Re: Ask HN: I bought Voltaren at the chemist, now Google shows me ads for it. Why?

#68
post #29

Opt out of VISA marketing https://marketingreportoptout.visa.com/OPTOUT/request.do Second, disable GPS, and cellphone tower ID reporting (root needed.) So Google can't correlate you with sales records. At the moment, there is no way to disable Google AGPS spying on the stock Android. Third, block Google apps from reading your IMEI/IMSI/serial number, so they can't get AGPS data from your cellphone provider if it sell…

Use an iPhone?

This only works if you trust Apple instead of the firm you're running from.

But it does "work". iPhone is the only phone besides a GrapheneOS phone with an intact security model worth writing about.

Re: Ask HN: I bought Voltaren at the chemist, now Google shows me ads for it. Why?

#69
post #47
post #29

Opt out of VISA marketing https://marketingreportoptout.visa.com/OPTOUT/request.do Second, disable GPS, and cellphone tower ID reporting (root needed.) So Google can't correlate you with sales records. At the moment, there is no way to disable Google AGPS spying on the stock Android. Third, block Google apps from reading your IMEI/IMSI/serial number, so they can't get AGPS data from your cellphone provider if it sell…

>VISA marketing Why is this even a thing? Maybe I should just go back to buying everything with cash, it's impossible to keep up with all the crap we need to disable or hack around

> > Visa marketing

I guess this is one of the things that just has to be forbidden by law.

Re: Ask HN: I bought Voltaren at the chemist, now Google shows me ads for it. Why?

#70

Earlier quoted context omitted.

It's been a few times now where I've talked with my wife about some new product (physically, in the room) and she starts seeing ads about it. I thought that was the explanation too, but it's happened too many times for comfort. I know my devices are (probably) not listening, but I can't explain it either. Neither of us searched for the product or saw it online or anything, we just discussed something and got ads abou…

> I know my devices are (probably) not listening, but I can't explain it either. How do you know?

It seems like one of those things that are simply to hard to keep secret. Implementation would require way to many people to keep it secret. I’m also not sure if it make finacial sense to implement, given the large number of more easily metrics available.
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