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Off-Facebook activity

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Re: Off-Facebook activity

#221

Post by 52-6F-62 »

b42 wrote: post #218
52-6F-62 wrote: post #204

Earlier quoted context omitted.

Your Mastercard URL got truncated somehow. It's a pretty easy search, though. Just the same, thanks for linking because I had no idea this was even an option: https://www.mastercard.us/en-us/about-mastercard/what-we-do/...

> To opt-out from our anonymization of your personal information to perform data analyses, please provide your Mastercard or Maestro payment card number below. This sounds like they are going to continue using my purchase data but without anonymization? Not a native speaker so perhaps I'm just misunderstanding the sentence.

You're right. I don't think that's the intention, but that is certainly what the language implies. It's rather vaguely worded.

Re: Off-Facebook activity

#222

Post by monort »

StavrosK wrote: post #60
monort wrote: post #57

Earlier quoted context omitted.

I think they cross-reference Android Advertising ID in their SDK. Have you ever logged to Facebook from your phone? https://developers.facebook.com/docs/app-ads/targeting/mobil...

I have, either in the browser or in Swipe (a third-party app). I've never logged in to or installed the Facebook app or Messenger.

Try to opt out of Advertising ID (Settings -> Google -> ads) and see if apps continue to be associated with your facebook account. I suspect Swipe sent both your account ad advertising id during login.

Re: Off-Facebook activity

#223

Post by JediWing »

dmayle wrote: post #217
dd36 wrote: post #164

Earlier quoted context omitted.

It’s crazy that they do this yet still charge nearly 3%.

They don't charge 3%, they charge about a tenth of a percent (0.11%). What you think of as fees is actually a basket of charges going to different parties. almost 2% goes to your (the purchaser) credit card company to cover the risk of you not paying them, about a percent goes to the store's bank to cover the case when they have to give the money back (either because it was a fraudulent online transaction, or the sto…

I get that this is how it works in the real world, but the argument that transaction fees are necessary for the credit company to cover the risk of the cardholder not paying is a bit feeble, because to my non-banker mind: that's what the interest rates are for. If someone is risky, simply don't approve their application, or raise their rate. Am I missing something?

Re: Off-Facebook activity

#224

Post by [deleted] »

feintruled wrote: post #43

Deliveroo has evidently been sending them all my orders. Or at least, there are as many 'interactions' as I have made orders. I don't log in via my Facebook so that is an unwelcome surprise.

[deleted]

Re: Off-Facebook activity

#225

Post by zerotolerance »

hatenberg wrote: post #67
kpozin wrote: post #12

In my profile, they managed to obtain a `PURCHASE` event from Macy's -- for an in-person purchase at a physical store . Macy's has my email address and certainly linked it to my credit card number, but this is nonetheless seriously creepy. I just tried to change my email address on Facebook and discovered that they canonicalize plus and dot variations in gmail.com addresses, and thus claim that the new email address…

Google has long bought credit card transactions and so probably have dozens of others. The root cause is that they are allowed to be sold

I'd argue that the root cause is that they have any value whatsoever.

Re: Off-Facebook activity

#226

Post by StavrosK »

monort wrote: post #222
StavrosK wrote: post #60

Earlier quoted context omitted.

I have, either in the browser or in Swipe (a third-party app). I've never logged in to or installed the Facebook app or Messenger.

Try to opt out of Advertising ID (Settings -> Google -> ads) and see if apps continue to be associated with your facebook account. I suspect Swipe sent both your account ad advertising id during login.

I opted out of Google advertising a long time ago, I think in the end it was Instagram/WhatsApp that did the dirtywork.

Re: Off-Facebook activity

#227

Post by mlb_hn »

kpozin wrote: post #12

In my profile, they managed to obtain a `PURCHASE` event from Macy's -- for an in-person purchase at a physical store . Macy's has my email address and certainly linked it to my credit card number, but this is nonetheless seriously creepy. I just tried to change my email address on Facebook and discovered that they canonicalize plus and dot variations in gmail.com addresses, and thus claim that the new email address…

Here's Facebook's business help link for how to upload and use point of sale and other offline data: https://www.facebook.com/business/help/1142103235885551?id=5...

Re: Off-Facebook activity

#229

Post by kube-system »

StavrosK wrote: post #153
cmwright wrote: post #148

Earlier quoted context omitted.

Once you've logged into facebook from the device, they likely created a device fingerprint for your device: https://en.wikipedia.org/wiki/Device_fingerprint . This would allow them to identify you even without a cookie or ad id to correlate against.

I don't think the browser fingerprint and native app fingerprint are the same, what you say sounds unlikely to me.

Fingerprinting across devices is possible too, using things like behavioral analytics, network traffic, timing, third-party data sources etc.

The third party data sources is the easy one. Log into service A on your computer and service A on your phone. Service A fingerprints both and sells the data to service B. Now service B knows how to correlate your behavior between devices even though you never logged in.

I’m sure you’ve logged in something on both your phone and computer. It doesn’t have to be Facebook.

Re: Off-Facebook activity

#230

Post by djaychela »

have_faith wrote: post #53
m1 wrote: post #8

A bit weird that my Monzo seems to be sending data to Facebook?

I saw HSBC

I didn't see HSBC, but I did see Monzo - which I was surprised and disappointed by. I see no legitimate reason for them to be connecting me to my (disused aside from messenger because of friends' network effects) facebook account. Not impressed.
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