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by shaggyfrog 4784 days ago
Are you logging in from the same locality, perhaps the same building, perhaps from the same computer and perhaps still using the same IP as you had when you closed your account in 2011? It doesn't take a lot of work to come up with some new-user-matching-old-user algorithm with a decent success rate using geographic/IP data.
1 comments
Caerus 4784 days ago
It would have been the same major metro area, but moved about 8 miles in the middle. Same ISP, different IP. Same computer, but there's no way I didn't completely clear the browser a few times in those 2 years.
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scarmig 4784 days ago
Hmmm... could the ISP be exposing your MAC address in some weird way?

Or maybe Facebook is using a real-life https://panopticlick.eff.org/

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dpcx 4784 days ago
You could still be fairly unique. It's not a guarantee, but within some range of certainty.

https://panopticlick.eff.org/

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