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Supercookie: Browser Fingerprinting via Favicon (2021)

(github.com)
357 points vxvrs | 1 comments | 16 Nov 25 19:39 UTC | HN request time: 0.528s | source
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breppp ◴[16 Nov 25 20:21 UTC] No.45948089[source]▶
I was sure this has been a thing for a while, either that or safari has a UI bug since forever.

I regularly get the wrong favicon in specific sites, for example ars technica favicon in reddit

replies(7): >>45948097 #>>45948671 #>>45949522 #>>45949581 #>>45950046 #>>45950748 #>>45951573 #
1. throwup238 ◴[17 Nov 25 04:01 UTC] No.45950748[source]▶
For me the iOS HN icon changes between the reddit and github, depending on which one I've been using the most on my phone recently. This happens on both iOS Safari and Kagi's Orion.

I thought that this was just a bug in iOS but based on the comments in this thread, it seems to be common not only across OSes but browser vendors too (I assume iOS Orion uses the same engine as Safari)