Author Topic: I'm not seeing any ads but...  (Read 661 times)

rcjordan

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I'm not seeing any ads but...
« on: September 09, 2021, 03:52:31 PM »
Paypal is tracking me by machine MAC #.  And they're selling? it to sites offering paypal.

I visited a non-profit site to read an article, did not donate.  Next day, I rec'd email spam about donating.  Previously, I'd noticed PP login waivers saying they recognized my machine and didn't need a pwd.

ergophobe

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Re: I'm not seeing any ads but...
« Reply #1 on: September 09, 2021, 07:14:11 PM »
HOw are they getting your MAC? Isn't that blocked in modern JS?

rcjordan

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Re: I'm not seeing any ads but...
« Reply #2 on: September 09, 2021, 07:43:05 PM »
Found it.  Not MAC but device IPs are being logged in account settings.

"when you check out using the same device and browser"

https://www.paypal.com/us/webapps/mpp/one-touch-checkout


ergophobe

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Re: I'm not seeing any ads but...
« Reply #3 on: September 10, 2021, 12:54:14 AM »
Ah, that makes a lot more sense. The only reliable way to hide an IP is to go through a proxy, but even then the proxy IP can be registered. But if enough people are using the proxy (e.g. a major VPN provider) then it's harder to tie it to a particular machine.

But the MAC address should never be accessible to the browser or the server.